Updated on 2025/03/27

写真a

 
Ito Kazutaka
 
Organization
The United Graduate School of Agricultural Sciences Professor
Title
Professor
Contact information
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Degree

  • 博士(農学) ( 九州大学 )

Research Interests

  • 生理活性物質

  • バイオトランスフォーメーション

  • リサイクル

  • バイオレメディエーション

  • ファイトレメディエーション

  • 木質バイオマス

  • 環境教育

  • 天然物化学

Education

  • Kyushu University   Graduate School, Division of Agriculture

    - 1992

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  • Kyushu University

    - 1992

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    Country: Japan

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Professional Memberships

Books

  • 木質の形成 バイオマス科学への招待

    海青社海青社  2003 

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  • Secondary Xylem Formation Introduction to Biomass Science

    Kaiseisya Press  2003 

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MISC

  • 活性炭で捕集されたダイオキシンの白色腐朽菌による分解

    木材学会誌   49 ( 3 )   227 - 232   2003

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  • イチョウ種子からのカルス培養によるギンゴリドの生産の試み

    木材学会誌   49 ( 1 )   40 - 46   2003

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  • イチョウ種子の貯蔵期間がカルス成長およびギンゴリド生産性におよぼす影響

    木材学会誌   49 ( 5 )   377 - 381   2003

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  • Production of ginkgolides in seed-derived callus cultures of icho (Ginkgo biloba L.)

    K Itoh, T Ohta, S Tachibana

    MOKUZAI GAKKAISHI   49 ( 1 )   40 - 46   2003

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    Language:Japanese   Publisher:JAPAN WOOD RES SOC  

    To produce ginkgolides from callus cultures of icho, (Ginkgo biloba L.) seeds, calluses were induced by use of three mediums, namely MS (Murashige and Skoog), SH (Schenk and Hildebrandt) and B5 (Gamborg B5). The MS medium was found to be best for production of ginkgolides as well as for callus growth. High-performance liquid chromatographic analysis of the extractives of calluses revealed that the calluses produced ginkgolides A and B which are known as antagonist to the platelet-activating factor. The content of ginkgolides A and B in the calluses was 0.0042% and 0.0090%, respectively, based on dry weight, when the calluses were incubated at 25degreesC in the dark. The calluses of icho seeds cultured in the dark produced 75% and 97% of ginkgolides A and B, respectively, compared to those of the intact plant.
    The content of ginkgolides A and B in the calluses was increased a maximum of 3.5 and 5.9 times, respectively, compared to that of the intact plant, when chito-oligosaccharides were added to the calluses as elicitors. When geranylgeraniol as a biogenetic precursor of ginkgolides was added to the calluses, the content of ginkgolides A and B was increased a maximum of. 56 and 14.3 times, respectively, to that of the intact plant.

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  • Effect of storage period of seeds of Icho, Ginkgo biloba, on callus growth and its ginkgolides production

    K Itoh, T Ohta, S Tachibana

    MOKUZAI GAKKAISHI   49 ( 5 )   377 - 381   2003

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    Language:Japanese   Publisher:JAPAN WOOD RES SOC  

    The effect of plant hormones on the induction of callus from seeds of Icho, Ginkgo biloba L., in relation to storage periods of the seeds was investigated. When a combination of 1-naphthaleneacetic acid (NAA) 1.0 mg/L and kinetin 1.0 mg/L was added to Murashige-Skoog (MS) medium on induction of callus from fresh icho seeds, the maximum amount of calluses was obtained. On the other hand, when a combination of NAA 2.0 mg/L and kinetin 5.0 mg/L was added to MS medium on induction of callus from icho seeds stored for eight months, the maximum amount of calluses was also obtained. The results showed that as the storage period of icho seeds increased, the productivity of ginkgolides in the calluses induced from the seeds was reduced. However, the productivity of ginkgolides in the calluses induced from both fresh icho seeds and those stored for eight months was enhanced. Furthermore, we found that the content of zeatin, a natural plant hormone, in the seeds decreased during the storage period.

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  • イチョウ種子からのカルス培養によるギンゴリドの生産の試み(共著)

    木材学会誌   49 ( 1 )   40 - 46   2003

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  • Enhancement of Podophyllotoxin Production by Biogentic Precursors and Elicitors in Cell Suspension Cultures of Juniperus Chinensis

    Pakisutan J. Biol. Sci   5 ( 11 )   1267 - 1271   2002

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  • Stimulation of the Production of Podophyllotoxin by Biogentic Precursors and an Elicitor in Juniperus chinensis

    Pakistan J. Biol. Sci   5 ( 3 )   313 - 316   2002

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  • Stimulation of the Production of Podophyllotoxin by Biogenetic Precursors and an Elictor in Juniperus chinensis Stem-derived Callus Cultures

    Pakistan Journal of Biological Sciences   ( 5(3) )   313 - 316   2002

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  • Stimulation of the Production of Podophyllotoxin by Biogentic Precursors and an Elicitor in Juniperus chinensis

    Pakistan J. Biol. Sci   5 ( 3 )   313 - 316   2002

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  • Stimulation of the Production of Taxol by Oligosaccharides in Taxus cuspidata vur. nana Callus Cultures

    Pakistan J. Biol. Sci   5 ( 4 )   461 - 465   2002

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  • Stimulation of the Production of Podophyllotoxin by Biogenetic Precursors and an Elictor in Juniperus chinensis Stem-derived Callus Cultures

    Pakistan Journal of Biological Sciences   ( 5(3) )   313 - 316   2002

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  • Enhancement of Podophyllotoxin Production by Biogentic Precursors and Elicitors in Cell Suspension Cultures of Juniperus Chinensis

    Pakisutan J. Biol. Sci   5 ( 11 )   1267 - 1271   2002

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  • Stimulation of the Production of Taxol by Oligosaccharides in Taxus cuspidata vur. nana Callus Cultures

    Pakistan J. Biol. Sci   5 ( 4 )   461 - 465   2002

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  • Relationship between enzymatic activities of fungi havingability for degradation of dioxins and degradation of 2,4,8-trichlorodibenzofuran.

    BULLETIN OF EHIME UNIVERSITY FOREST   ( 39 )   53 - 61   2001

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  • Relationship between enzymatic activities of fungi havingability for degradation of dioxins and degradation of 2,4,8-trichlorodibenzofuran.

    BULLETIN OF EHIME UNIVERSITY FOREST   ( 39 )   53 - 61   2001

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  • ダイオキシン分解菌、V2からのリグニンペルオキシダーゼ活性を有するフラクションの分画の試み

    大川 浩樹, 伊藤 和貴, 橘 燦郎

    愛媛大学農学部演習林報告   ( 39 )   63 - 73   2001

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    Language:Japanese   Publisher:愛媛大学農学部附属演習林  

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  • Prevention of light-induced color reversion of mechanical pulps by treatment of fungi and its extracellular enzymes

    Proceedings of the International Symposium on Environmentally Friendly and Emerging Technologies for a Sustainable Pulp and Paper Industry   290 - 293   2000

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  • Prevention of light-induced color reversion of mechanical pulps by treatment of fungi and its extracellular enzymes

    Proceedings of the International Symposium on Environmentally Friendly and Emerging Technologies for a Sustainable Pulp and Paper Industry   290 - 293   2000

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  • PRODUCTION OF BIOLOGICALLY ACTIVE SUBSTANCES BY CALLUS CULTURES OF BYAKUSHIN(JUNIPERUS CHINENSIS)

    Proceedings of the 10th International Symposium on Wood and Pulping Chemistry   3   6 - 9   1999

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  • イチイ属樹木の抽出成分の有効利用(第1報)フラボノイド類とタキシニン及びその誘導体のイネごま葉枯病菌(Cochliobolus miyabeanus)及びナシ黒斑病菌(Altenaria kikuchiana)に対する抗菌性について

    木材学会誌   45 ( 1 )   42 - 50   1999

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  • Bioremediation by Wood-Rotting fungi((]G0003[))Degradation of 2.4.8-trichlorodibenzofuran and dibenzofuran by some fungi having ability for degradation of dioxins.

    JAPAN TAPPI JOURNAL   53 ( 8 )   1054 - 1062   1999

  • Bioremediation by Wood-Rotting fungi((]G0003[))Degradation of 2.4.8-trichlorodibenzofuran and dibenzofuran by some fungi having ability for degradation of dioxins.

    JAPAN TAPPI JOURNAL   53 ( 8 )   1054 - 1062   1999

  • Bioremediation by Wood-Rotting furgi(Ⅲ).Degradation of 2,4,8-trichlorodibenzofuran and dibenzofuran by some fungi having ability for degradation of dioxins (jointly authored)

    Japan Tappi   53 ( 8 )   1054 - 1062   1999

  • SCREENING OF FUNGI HAVING ABILITY FOR DEGRADATION OF DIOXINS(jointly authored)

    Proceedings of the 10th International Symposium on Wood and Pulping Chemistry   3   98 - 101   1999

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  • イチイ属樹木の抽出成分の有効利用(Ⅰ)フラボノイド類とタキシニン及びその誘導体のイネごま葉枯病菌(Cochlioborus miyabenaus)及びナシ黒斑病菌(Altenaria kikuchiana)に対する抗菌性について

    木材学会誌   45 ( 1 )   42 - 50   1999

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  • Production of ginkgolides by tissue cultures of Icho (Ginkgo biloba L.).(jointly authored)

    Proceedings of the 10th International Symposium on Wood and Pulping Chemistry   3   2 - 5   1999

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  • DEGRADATION OF DIOXINS (2,7-DICHLORODIBENZO-P-DIOXIN)BY FUSANTS FORMED BY PROTOPLAST FUSION OF SOME FUNGI.

    Proceedings of the 10th International Symposium on Wood and Pulping Chemistry   3   106 - 109   1999

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  • 木材腐朽菌によるバqイオレメデイエーション(Ⅲ)ダイオキシン分解菌による2,4,8-トリクロロジベンゾフラン及びジベンゾフランの分解

    紙パ技協誌   53 ( 8 )   1054 - 1062   1999

  • Bioremediation by Wood-Rotting fungi (III) Degradation of 2, 4, 8-trichlorodibenzofuran and dibenzofuran by some fungi having ability for degradation of dioxins

    OHKAWA Hiroki, ITOH Kazutaka, TACHIBANA Sanro

    Journal of the Japanese Technical Association of the Pulp and Paper Industry   53 ( 8 )   1054 - 1062   1999

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    Language:Japanese   Publisher:JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY  

    Microbial degradation of 2, 4, 8-trichlorodibenzofuran (2, 4, 8-TCDF) and dibenzofuran by three fungi (563, V1, V2) isolated by a screening method from natural world and by two wood-rotting fungi (<I>Phanerochaete chrysosporium and Coriolus versicolor</I>) were conducted. The five fungi degraded from 1.9% to 75.9% of 2, 4, 8-TCDF. The maximum degradation ratio of 2, 4, 8-TCDF was obtained by fungus V 1 when the incubation was conducted for 15 days after addition of 1.25 mMol of 2, 4, 8-TCDF to culture medium of each of five fungi. The degradation ratio was 36.2%. In the case of the 30 day's incubation in the same concentration, the maximum degradation ratio was obtained by <I>P. chrysosporium</I>. The degradation ratio was 75.9%. On the other hand, the maximum degradation ratio of 2, 4, 8-TCDF was obtained by <I>C. versicolor</I> when the incubation was conducted for 15 days after addition of 0.25 mMol of 2, 4, 8-TCDF to culture medium of each of five fungi. The degradation ratio was 36.4%. In the case of the 30 day's incubation in the same concentration, the maximum degradation ratio was obtained by fungus V2. The degradation ratio was 72.8%. In addition, a part of 2, 4, 8-TCDF was incorporated into each mycelium of five fungi during the incubation.<BR>Dibenzofuran (DF) could be degraded from 80.6% to 94.5% by <I>P. chrysosporium</I> and fungus V2. The maximum degradation ratios of DF was obtained by fungus V2 when the incubations were conducted for 15 days and 30 days, respectively, after addition of 1.25 mMol of DF to culture medium of each of two fungi. The degradation ratios were 91.7% and 94.5%, respectively. On the other hand, the maximum degradation ratios of DF were obtained by fungus V2 when the incubations were conducted for 15 days and 30 days, respectively, after addition of 0.25 mMol of DF to culture medium of each of two fungi. The degradation ratios were 88.3% and 93.6%, respectively. In addition, a part of DF was incorporated into each mycelium of two fungi during the incubation. In comparison with the degradation ratio between 2, 4, 8-TCDF and DF, it is considered that the degradation ratio of chlorinated DF decrease with the numbers and positions of substituted chlorine atoms at the DF molecule.

    DOI: 10.2524/jtappij.53.1054

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    Other Link: https://jlc.jst.go.jp/DN/JALC/00369489997?from=CiNii

  • 木材腐朽菌によるバイオレメディエーション((]G0003[))ダイオキシン分解菌による2.4.8.-トリクロロジベンゾフラン及びジベンゾフランの分解

    紙11°技協誌   53 ( 8 )   1054 - 1062   1999

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  • Utilization of extractives from genus Taxus tree I. Antifungal activities of flavonoids, taxinine, and its derivatives against Cochliobolus miyabeanus and Altenaria kikuchiana

    T Muranaka, K Kurose, K Itoh, S Tachibana

    MOKUZAI GAKKAISHI   45 ( 1 )   42 - 50   1999

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    Language:English   Publisher:JAPAN WOOD RES SOC  

    Antifungal activities of four flavonoids [sciadopitysin (1). ginkgetin (2), isorhamnetin (3), and quercetin (4)] and taxinine (5) (a taxane-type diterpenoid) isolated from the leaves of Ichii ( Taxus cuspidata Sieb. et Zucc.) and Kyaraboku (T. cuspidata Sieb. et Zucc. var, nana Rehder) against Cochliobolus miyabeanus and Altenaria kikuchiana, plant pathogenic fungi, were measured for utilization of the extractives from the genus Taxus trees. Sciadopitysin (1), quercetin (4), and taxinine (5) showed antifungal activity againt C. miyabeanus. To find more active compounds than taxinen (5), seven taxinine derivatives 6-12 were prepared from taxinine, and their antifungal activities against the two fungi were measured. Amoung the seven derivatives bisdeacetyltaxinine (6), isopropylidenebisdeacetyltaxinine (7), isopropylidenetrideacetyltaxinine (8),and taxinine epoxide (12) showed almost the same activities as that of taxinine against C.miyabeanus. On the contrary, antifungal activities of the five compounds 1-5 isolated from the leaves and the seven taxinine derivatives 6-12 against A. kikuchiana were weak, and the activities were about from one-half to one-eighth of those against C.,miyabeanus.
    In addition, the effects of substituent groups of taxinine and flavonoids on the antifungal activities against the two fungi are discussed.

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  • Utilization of Extractives from Genus Taxes Tree I. Antifungal activities aftlavonoids, taxinine, and its derivatives against Cochliobolus miyabeanus and Altenaria kikuchiana (jointly authored)

    Mokuzai Gakkaishi   45 ( 1 )   42 - 50   1999

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  • DEGRADATION OF DIOXINS (2,7-DICHLORODIBENZO-P-DIOXIN)BY FUSANTS FORMED BY PROTOPLAST FUSION OF SOME FUNGI.

    Proceedings of the 10th International Symposium on Wood and Pulping Chemistry   3   106 - 109   1999

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  • SCREENING OF FUNGI HAVING ABILITY FOR DEGRADATION OF DIOXINS(jointly authored)

    Proceedings of the 10th International Symposium on Wood and Pulping Chemistry   3   98 - 101   1999

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  • PRODUCTION OF BIOLOGICALLY ACTIVE SUBSTANCES BY CALLUS CULTURES OF BYAKUSHIN(JUNIPERUS CHINENSIS)

    Proceedings of the 10th International Symposium on Wood and Pulping Chemistry   3   6 - 9   1999

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  • Production of ginkgolides by tissue cultures of Icho (Ginkgo biloba L.).(jointly authored)

    Proceedings of the 10th International Symposium on Wood and Pulping Chemistry   3   2 - 5   1999

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  • Treatment of abaca and kenaf pulps with pectinases

    K Itoh, Y Uegaki, K Okazaki, S Tachibana

    SEN-I GAKKAISHI   54 ( 5 )   253 - 260   1998.5

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    Language:Japanese   Publisher:SOC FIBER SCIENCE TECHNOLOGY  

    Treatment of the pulps prepared from non-woody plants, abaca and kenaf with two commercially available pectinases, pectinase PL[AMANO] and Ultrazym containing CMC-ase, xylanase and beta-glucosidase was conducted to investigate the effect of the pulp properties on the pectinases treatment. We found that large amounts of parenchyma cells in the both kenaf and abaca pulps were removed by the two pectinases treatments. Seventy to almost one hundred percent of the parenchyma cells could be removed from the both pulps by the 24 hours' treatment. However, the weights of the kenaf and abaca pulps treated with the pectinases were decreased by 4 to 28 %, especially the loss of the weights was increased with increase in amounts of CMC-ase, beta-gulucosidase and xylanase coexisted in the pectinases. The water retention values of the kenaf and abaca pulps were decreased by 28 to 80 % by the treatment with pectinase PL [AMANO]. On contrary, the values of the kenaf pulps were increased by 10 to 53 % by the treatments with Ultrazym. The physical properties of the abaca pulps treated with pectinase PL [AMANO] generally made little difference from those of the untreated pulps. However, the breaking length in the physical properties of the abaca pulps was improved by 5 to 36% by the treatment with the pectinase. The properties of the kenaf pulps treated with the pectinase were lowered in those of the untreated pulps.

    DOI: 10.2115/fiber.54.5_253

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  • PRODUCTION OF PODOPHYLLOTOXIN IN JUNIPERUS CHINENSIS DALLUS CULTURES TREATED WITH OLIGOSACCHARIDES AND A BIOGENETIC PRECURSOR. (Jointly authored)

    ITO K, MIYATA M, MURANAKA T, TACHIBANA S

    Phytochemistry   49 ( 2 )   491 - 496   1998

  • イチョウ葉のカルス培養によるギンゴリドの生産の試み

    木材学会誌   44 ( 1 )   1 - 8   1998

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  • Extractives of Juniperus chinensis L. Isolation of podophyllotoxin and yatein from the leaves of J. chinensis. (Jointly authored)

    MIYATA M, ITOH K, TACHIBANA S

    J. Wood. Sci.   44 ( 5 )   397 - 400   1998

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  • PRODUCTION OF PODOPHYLLOTOXIN IN JUNIPERUS CHINENSIS DALLUS CULTURES TREATED WITH OLIGOSACCHARIDES AND A BIOGENETIC PRECURSOR. (Jointly authored)

    Phytochemistry   49 ( 2 )   491 - 496   1998

  • Treatment of abaca and kenal pulps with pectinases.

    FIBER   54 ( 5 )   253 - 260   1998

  • 木材腐朽菌によるバイオレメデイエーションー2,7-ジクロロジベンゾ-p-ダイオキシンの分解

    特産情報   19 ( 8 )   62 - 65   1998

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  • Extractives of Juniperus chinensis L. Isolation of podophyllotoxin and yatein from the leaves of J. chinensis. (Jointly authored)

    J. Wood. Sci.   44 ( 5 )   397 - 400   1998

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  • Bioremediation by Whiete-rotting fungi Degradation of 2,7-dichlorodibenzo-p-dioxin

    19 ( 8 )   62 - 65   1998

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  • Production of Ginkgolides by Callus Cultures of Icho(Ginkgo biloba)Leaves

    ITO Kazutaka, SHIRAISHI Kazunori, TAKECHI Yuri, MIYATA Masaru, TACHIBANA Sanro

    Journal of the Japan Wood Researh Society   44 ( 1 )   1 - 8   1998

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    Language:Japanese  

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  • Production of ginkgolides by callus cultures of icho (Ginkgo biloba) leaves

    K Itoh, K Shiraishi, Y Takechi, M Miyata, S Tachibana

    MOKUZAI GAKKAISHI   44 ( 1 )   1 - 8   1998

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    Language:Japanese   Publisher:JAPAN WOOD RES SOC  

    Calli were induced from leaves of young trees of icho, Ginkgo biloba L., on Murashige and Skoog medium, supplemented with 2,4-dichlorophenoxyacetic acid and kinetin, and subcultured on the same medium. High-performance liquid chromatographic analyses of the extractives of calli revealed that they produced Ginkgolides A and B that are known as antagonists to the platelet-activating factor. The contents of Ginkgolides A and B in the calli were 0.0049% and 0.0180%, respectively, of the dry weight when the calli were incubated at 25 degrees C in light. On the other hand, the contents of Ginkgolides A and B in the calli incubated at 25 degrees C in the dark were 0.0017% and 0.0094%, respectively, of dry weight. The calli cultures of the leaves of icho in the dark and light produced from 23 to 67% and from 57 to 110% of Ginkgolides A and B, respectively, of those of the leaves of the intact plants.
    The contents of Ginkgolides A and B in the calli were increased 1.2 and 5.9 times in maximum values, respectively, to those of the leaves of the intact plants when the chito-oligosaccharides functioning as elicitors were added to the calli. When geranylgeraniol as a biogenetic precursor of ginkgolides was added to the calli, the contents of Ginkgolides A and B in the calli were inceased 1.2 and 3.0 times, respectively, in maximum values, of those of the leaves of the intact plants.

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  • アバカ,ケナフのペクチナーゼ処理

    伊藤和貴, 上垣勇吾, 岡崎賢治, 橘燦郎

    繊維学会誌   54 ( 5 )   253 - 260   1998

  • Treatment of abaca and kenal pulps with pectinases.

    伊藤和貴, 上垣勇吾, 岡崎賢治, 橘燦郎

    FIBER   54 ( 5 )   253 - 260   1998

  • Studies on Utilization of Extractives from the genus Taxus Tree(2) Antifungal activities of txinine and its derivatives against Colletorichum fragariae, Botrytis cinerea and Corynespora cassiicola.

    BULLETIN OF THE EHIME UNIVERSITY FOREST   35   45 - 53   1997

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  • イチイ属樹木の抽出成分の有効利用に関する研究(2) タキシニンとその誘導体のイチゴ炭そ病菌,カンキツ灰色かび病菌及びキュウリ褐斑病菌に対する抗菌性について(共著)

    愛媛大学農学部演習林報告   ( 35 )   45 - 53   1997

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  • Studies on biological treatment of mechanical pulps(IX) Effect of phenolic hydroxyl groups in mechanical pulps on depression of color reversion of mechanical pulps.

    Itoh Kazutaka, Adachi Yukio, Tsubota Hiroshi, Oki Tae, Tachibana Sanro

    JAPAN TAPPI JOURNAL   51 ( 7 )   1090 - 1097   1997

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    Publisher:JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY  

    To investigate the effect of phenolic hydroxyl groups in mechanical pulps on depression of light-induced color reversion of mechanical pulps, thermomechanical pulps (TMP) and groundwood pulps (GP) were acetylated, and examined to what extent the color reversion of the pulps were prevented by the acetylation. When about 11% of the phenolic hydroxyl groups in unbleached GP (UGP) and unbleached TMP (UTMP) were acetylated, the color reversion of the pulps was completely depressed. On the contrary, the color reversions of bleached GP (BGP) and bleached TMP (BTMP) were completely depressed when about 16% and 29% of the phenolic hydroxyl groups in the BGP and BTMP, respectively, were acetylated. The differences in the depression of the color reversion between the unbleached pulps and the bleached pulps were estimated as the differences in the degree of changes in lignins formed by the different pulping conditions, and as the differences in the degree of formation of quinones and hydroquinones, chromophore and leuco-chromophore responsible for the color reversion, respectively, generated during hydrogen peroxide bleaching of the unbleached pulps. When the acetylated pulps were reduced with potassium borohydride accompanied with phase transfer catalyst (PTC), the effects of the depression of the color reversion were lowered in comparison with those of the color reversion in the acetylated pulps. It was thought that a part of deacetylation of the acetyl groups in the pulps was conducted during the reduction.<BR>On the basis of the results, the phenolic hydroxyl groups in mechanical pulps seems to contribute mainly to the depression of the color reversionof mechanical pulps.

    DOI: 10.2524/jtappij.51.1090

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  • Effect of addition of gibberellins produced by microbial conversion of kaurene on elongation of kyaraboku sprouts and production of taxanes.

    BULLETIN OF THE EHIME UNIVERSITY FOREST   35   33 - 44   1997

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  • Studies on utilization of extractives from the genus Taxus tree (2). Antifungal activities of taxinine and its derivatives against Colletotrichum fragariae, Botrytis cinerea, and Corynespora cassiicola

    MURANAKA T

    Bull Ehime Univ Forest   35   45 - 53   1997

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  • イチイ属樹木の抽出成分の有効利用に関する研究(2)タキシニンとその誘導体のイチゴ炭そ病菌,カンキツ灰色カビ病菌及びキュウリ褐斑病菌に対する抗菌性について

    愛媛大学農学部演習林報告   35   45 - 53   1997

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  • Production of usefull substances by biotransformation with plant cell cultues.

    Proceedings of The 42nd Lignin Symposium   163 - 164   1997

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  • 植物培養細胞を用いたバイオトランスフォーメーションによる有用物質の生産

    第42回リグニン討論会講演集   163 - 164   1997

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  • キャラボク新芽の伸長とタキサン類の生産に及ぼすカウレンの微生物変換により生成したジベレリンの投与の影響

    柳田 高志, 伊藤 和貴, 橘 燦郎

    愛媛大学農学部演習林報告   35 ( 35 )   33 - 44   1997

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    Language:Japanese   Publisher:愛媛大学農学部附属演習林  

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  • Effect of addition of gibberellins produced by microbial conversion of kaurene on elongation of kyaraboku sprouts and production of taxanes

    Bulletin of the Ehime University Forest   ( 35 )   24 - 30   1997

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  • Studies on Utilization of Extractives from the genus Taxus Trees(2)Antifungal activities of taxinine and its derivatives against Colletotrichum fragariae, Botrytis cinerea and Corynespora cassiicola

    Bulletin of the Ehime University Forest   ( 35 )   17 - 23   1997

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  • キャラボク新芽の伸長とタキサン類の生産に及ぼすカウレンの微生物変換により生成したジベレリンの投与の影響

    愛媛大学農学部演習林報告   ( 35 )   24 - 30   1997

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  • Bioremediation by Wood-Rotting fungi (II) Relationship between enzyme activities of fungi having ability for degradation of dioxins and degradation of 2,7-dichlorodibenzo-p-dioxin and an improved screening method of fungi having ability for degradation of dioxins

    Kazutaka Itoh, Hiroki Ohkawa, Sanro Tachibana, Tatuya Hirabayashi

    Kami Pa Gikyoshi/Japan Tappi Journal   51 ( 11 )   1759 - 1768   1997

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    Language:Japanese   Publisher:Japan Technical Assoc. of the Pulp and Paper Industry  

    The time-course of the activities of cumulative lignin peroxidase (LiP), cumulative managanase peroxidase (MnP), and cumulative laccase (Lac) from the five fungi having ability for degradation of 2,7-Dichlorodibenzo-p-dioxin (2,7-DCDD) was measured in connection with the degradation rate of 2,7 DCDD with five fungi. The activity of cumulative Lip of a fungus was higher, the degradation rate of 2,7 DCDD was higher. Correlation between the activity of cumulative Lip and the degradation rate of 2,7 DCDD was observed. However, the activities of cumulative MnP and cumulative Lac were not correlated to the degradation rate of 2,7-DCDD. From the results obtained above, we found the improved screening method of fungi having higher ability for degradation of dioxins. First, screening of fungi having ability for decolorization of dye was carried out by using Remazol brilliant blue R, a kind of dye, as an indicator. In the second screening, fungi having ability for higher activity of cumulative Lip were selected. By using this method, three fungi named 25, 65, and E having higher ability for degradation of 2,7-DCDD was obtained by the screening from natural world.

    DOI: 10.2524/jtappij.51.1759

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  • 木材腐朽菌によるバイオレメデイエーション(Ⅱ)ダイオキシン分解菌の酵素活性と2,7-Dichlorodibenzo-p-dioxinの分解との関連およびダイオキシン分解菌のスクリーニング法の改良

    伊藤 和貴, 大川 浩樹, 橘 燦郎, 平林 達也

    紙パ技協誌   51 ( 11 )   1759 - 1768   1997

  • Bioremediation by White-Retting fungi(II) Relationship between enzyme activities of fungi having ability for degradation of dioxins and degradation of 2,7-Dichlorodibenzo-p-Dioxin and on improved screening method of fungi having ability for degradation・・・

    Kazutaka Itoh, Hiroki Ohkawa, Sanro Tachibana, Tatuya Hirabayashi

    Japan Tappi   51 ( 11 )   1759 - 1768   1997

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    Bioremediation by White-Retting fungi(II) Relationship between enzyme activities of fungi having ability for degradation of dioxins and degradation of 2,7-Dichlorodibenzo-p-Dioxin and on improved screening method of fungi having ability for degradation of dioxins

    DOI: 10.2524/jtappij.51.1759

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  • 木材腐朽菌によるバイオレメディエーション(II)ダイオキシン分解菌の酵素活性と2,7-dichlorodibemzo-p-dioxinの分解との関連およびダイオキシン分解菌のスクリーニング法の改良

    伊藤 和貴, 大川 浩樹, 橘 燦郎, 平林 達也

    紙パ技協誌   51 ( 11 )   1759 - 1768   1997

  • Studies on Biological Treatment of Mechanical Pulps (IX):Effect of phenolic hydroxyl groups in mechanical pulps on depression of color reversion of mechanical pulps

    Itoh Kazutaka, Adachi Yukio, Tsubota Hiroshi, Oki Tae, Tachibana Sanro

    Journal of the Japanese Technical Association of the Pulp and Paper Industry   51 ( 7 )   1090 - 1097   1997

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    Publisher:JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY  

    To investigate the effect of phenolic hydroxyl groups in mechanical pulps on depression of light-induced color reversion of mechanical pulps, thermomechanical pulps (TMP) and groundwood pulps (GP) were acetylated, and examined to what extent the color reversion of the pulps were prevented by the acetylation. When about 11% of the phenolic hydroxyl groups in unbleached GP (UGP) and unbleached TMP (UTMP) were acetylated, the color reversion of the pulps was completely depressed. On the contrary, the color reversions of bleached GP (BGP) and bleached TMP (BTMP) were completely depressed when about 16% and 29% of the phenolic hydroxyl groups in the BGP and BTMP, respectively, were acetylated. The differences in the depression of the color reversion between the unbleached pulps and the bleached pulps were estimated as the differences in the degree of changes in lignins formed by the different pulping conditions, and as the differences in the degree of formation of quinones and hydroquinones, chromophore and leuco-chromophore responsible for the color reversion, respectively, generated during hydrogen peroxide bleaching of the unbleached pulps. When the acetylated pulps were reduced with potassium borohydride accompanied with phase transfer catalyst (PTC), the effects of the depression of the color reversion were lowered in comparison with those of the color reversion in the acetylated pulps. It was thought that a part of deacetylation of the acetyl groups in the pulps was conducted during the reduction.<BR>On the basis of the results, the phenolic hydroxyl groups in mechanical pulps seems to contribute mainly to the depression of the color reversionof mechanical pulps.

    DOI: 10.2524/jtappij.51.1090

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  • Bioremediation by Wood-Rotting fungi (II) Relationship between enzyme activities of fungi having ability for degradation of dioxins and degradation of 2,7-dichlorodibenzo-p-dioxin and an improved screening method of fungi having ability for degradation of dioxins

    Kazutaka Itoh, Hiroki Ohkawa, Sanro Tachibana, Tatuya Hirabayashi

    Kami Pa Gikyoshi/Japan Tappi Journal   51 ( 11 )   1759 - 1768   1997

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    Language:Japanese   Publisher:Japan Technical Assoc. of the Pulp and Paper Industry  

    The time-course of the activities of cumulative lignin peroxidase (LiP), cumulative managanase peroxidase (MnP), and cumulative laccase (Lac) from the five fungi having ability for degradation of 2,7-Dichlorodibenzo-p-dioxin (2,7-DCDD) was measured in connection with the degradation rate of 2,7 DCDD with five fungi. The activity of cumulative Lip of a fungus was higher, the degradation rate of 2,7 DCDD was higher. Correlation between the activity of cumulative Lip and the degradation rate of 2,7 DCDD was observed. However, the activities of cumulative MnP and cumulative Lac were not correlated to the degradation rate of 2,7-DCDD. From the results obtained above, we found the improved screening method of fungi having higher ability for degradation of dioxins. First, screening of fungi having ability for decolorization of dye was carried out by using Remazol brilliant blue R, a kind of dye, as an indicator. In the second screening, fungi having ability for higher activity of cumulative Lip were selected. By using this method, three fungi named 25, 65, and E having higher ability for degradation of 2,7-DCDD was obtained by the screening from natural world.

    DOI: 10.2524/jtappij.51.1759

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  • Studies on Biological Treatment of Mechanical Pulps (IX):Effect of phenolic hydroxyl groups in mechanical pulps on depression of color reversion of mechanical pulps

    Itoh Kazutaka, Adachi Yukio, Tsubota Hiroshi, Oki Tae, Tachibana Sanro

    Journal of the Japanese Technical Association of the Pulp and Paper Industry   51 ( 7 )   1090 - 1097   1997

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    Publisher:JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY  

    To investigate the effect of phenolic hydroxyl groups in mechanical pulps on depression of light-induced color reversion of mechanical pulps, thermomechanical pulps (TMP) and groundwood pulps (GP) were acetylated, and examined to what extent the color reversion of the pulps were prevented by the acetylation. When about 11% of the phenolic hydroxyl groups in unbleached GP (UGP) and unbleached TMP (UTMP) were acetylated, the color reversion of the pulps was completely depressed. On the contrary, the color reversions of bleached GP (BGP) and bleached TMP (BTMP) were completely depressed when about 16% and 29% of the phenolic hydroxyl groups in the BGP and BTMP, respectively, were acetylated. The differences in the depression of the color reversion between the unbleached pulps and the bleached pulps were estimated as the differences in the degree of changes in lignins formed by the different pulping conditions, and as the differences in the degree of formation of quinones and hydroquinones, chromophore and leuco-chromophore responsible for the color reversion, respectively, generated during hydrogen peroxide bleaching of the unbleached pulps. When the acetylated pulps were reduced with potassium borohydride accompanied with phase transfer catalyst (PTC), the effects of the depression of the color reversion were lowered in comparison with those of the color reversion in the acetylated pulps. It was thought that a part of deacetylation of the acetyl groups in the pulps was conducted during the reduction.<BR>On the basis of the results, the phenolic hydroxyl groups in mechanical pulps seems to contribute mainly to the depression of the color reversionof mechanical pulps.

    DOI: 10.2524/jtappij.51.1090

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  • Effect of addition of gibberellins produced by microbial conversion of kaurene on elongation of kyaraboku sprouts and production of taxanes.

    BULLETIN OF THE EHIME UNIVERSITY FOREST   35   33 - 44   1997

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  • イチイ属樹木の抽出成分の有効利用に関する研究(2)タキシニンとその誘導体のイチゴ炭そ病菌、カンキツ灰色かび病菌及びキュウリ褐斑病菌に対する抗菌性について

    愛媛大学農学部演習林報告   ( 35 )   17 - 23   1997

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  • Studies on Biological Treatment of Mechanical Pulps (IX):Effect of phenolic hydroxyl groups in mechanical pulps on depression of color reversion of mechanical pulps

    Itoh Kazutaka, Adachi Yukio, Tsubota Hiroshi, Oki Tae, Tachibana Sanro

    Journal of the Japanese Technical Association of the Pulp and Paper Industry   51 ( 7 )   1090 - 1097   1997

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    Publisher:JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY  

    To investigate the effect of phenolic hydroxyl groups in mechanical pulps on depression of light-induced color reversion of mechanical pulps, thermomechanical pulps (TMP) and groundwood pulps (GP) were acetylated, and examined to what extent the color reversion of the pulps were prevented by the acetylation. When about 11% of the phenolic hydroxyl groups in unbleached GP (UGP) and unbleached TMP (UTMP) were acetylated, the color reversion of the pulps was completely depressed. On the contrary, the color reversions of bleached GP (BGP) and bleached TMP (BTMP) were completely depressed when about 16% and 29% of the phenolic hydroxyl groups in the BGP and BTMP, respectively, were acetylated. The differences in the depression of the color reversion between the unbleached pulps and the bleached pulps were estimated as the differences in the degree of changes in lignins formed by the different pulping conditions, and as the differences in the degree of formation of quinones and hydroquinones, chromophore and leuco-chromophore responsible for the color reversion, respectively, generated during hydrogen peroxide bleaching of the unbleached pulps. When the acetylated pulps were reduced with potassium borohydride accompanied with phase transfer catalyst (PTC), the effects of the depression of the color reversion were lowered in comparison with those of the color reversion in the acetylated pulps. It was thought that a part of deacetylation of the acetyl groups in the pulps was conducted during the reduction.<BR>On the basis of the results, the phenolic hydroxyl groups in mechanical pulps seems to contribute mainly to the depression of the color reversionof mechanical pulps.

    DOI: 10.2524/jtappij.51.1090

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  • studies on Biological Treatment of Mechanical Pulps(IX) Effect of phenolic hydroxyl groups in mechanical pulps on depression of color reversion of mechanical pulps

    Japan Tappi   51 ( 7 )   1090 - 1097   1997

  • Production of usefull substances by biotransformation with plant cell cultues.

    Proceedings of The 42nd Lignin Symposium   163 - 164   1997

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  • Bioremediation by wood-rotting fungi (I) Screening of fungi having ability for degradation of dioxins and degradation of 2,7-dichlorodibemzo-p-dioxin by some fungi separated by the screening and by some wood-rotting fungi

    橘燦郎, 大川浩樹, 伊藤和貴, 沖妙, 平林達也

    JAPAN TAPPI JOURNAL   50 ( 12 )   1806 - 1815   1996

  • Bioremediation by wood-rotting fungi (I) Screening of fungi having ability for degradation of dioxins and degradation of 2,7-dichlorodibemzo-p-dioxin by some fungi separated by the screening and by some wood-rotting fungi

    JAPAN TAPPI JOURNAL   50 ( 12 )   1806 - 1815   1996

  • Bioremediation by Wood-Rotting fungi (I) Screening of fungi having ability for degradation of dioxins and degradation of 2,7-Dichlorodibenzo-p-dioxin by some fungi separated by the screening and by some wood-rotting fungi

    Japan Tappi   50 ( 12 )   1806 - 1815   1996

  • Studies on Biological Treatment of Mechanical Pulps (VII) : Screening of fungi having ability for depression of light-induced color reversion of mechanical pulps with reductive indicators

    ITOH Kazutaka, KAWAMURA Yoshie, SYUTOU Hiroshi, OKI Tae, TACHIBANA Sanrou

    50 ( 5 )   811 - 819   1996

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  • Screening of fungi having ability for degradation of dioxins

    Proceeding of The 41th Lignin Symposium   163 - 164   1996

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  • Preparation of Visco-ductile Compound (I), α-(w-carboxy-nonadecanoyl)-α', β-dipalmitoyl-glycerol present in Japan Wax using Interesterification with Lipases

    BULLETIN OF THE EHIME UNIVERSITY FOREST   ( 34 )   107 - 121   1996

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  • A Trial for Formation of a Fusant by Protoplast Fusion of (Gibberella)■.-. (fujikuroi)■.-. Strains

    BULLETIN OF THE EHIME UNIVERSITY FOREST   ( 34 )   93 - 106   1996

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  • Traial for glucosylation of phenols by plant cell cultures

    Proceedings of The 41th Lignin Symposium   155 - 156   1996

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  • A trial for aformation of a fusant by protoplast fusion of Gibberella fujikuroi strains

    BULLETIN OF THE EHIME UNIVERSITY FOREST   ( 34 )   93 - 106   1996

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  • Screening of fungi having ability for degradation of dioxins

    Proceeding of The 41th Lignin Symposium   163 - 164   1996

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  • Traial for glucosylation of phenols by plant cell cultures

    Proceedings of The 41th Lignin Symposium   155 - 156   1996

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  • 植物培養細胞によるフェノール類のグルコシル化の試み

    第41回リグニン討論会講演集   155 - 156   1996

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  • Gibberella fujikuroi菌のプロトプラスト融合による融合菌作出の試み

    柳田 高志, 岡村 知帆, 伊藤 和貴

    愛媛大学農学部演習林報告   ( 34 )   93 - 106   1996

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    Language:Japanese   Publisher:愛媛大学農学部附属演習林  

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  • Formation of isoharrringtonine, an anti-tumor alkaloid in Cephalotaxus harringtonia callus cultures.

    Bulletin of the Ehime University Forest   ( 33 )   41 - 52   1996

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  • 天然からのダイオキシン分解能を有する分解菌のスクリーニング

    第41回リグニン討論会講演習   163 - 164   1996

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  • Screening of a strain of Gibberella fujikuroi for improved microbial conversion of (-)-kaurene

    T Hirabayashi, K Itoh, S Tachibana, T Oki, M Higashi

    MOKUZAI GAKKAISHI   42 ( 11 )   1134 - 1138   1996

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    Language:English   Publisher:JAPAN WOOD RES SOC  

    To increase the amounts of gibberellins produced by the microbial conversion of (-)-kaurene with Gibberella fujikuroi, a screening of ten G. fujikuroi strains was conducted. The G. fujikuroi IFO 9977 strain was found to lead to the largest yields of gibberellins. The formation of gibberellins from (-)-kaurene with the IFO 9977 strain was 1.4 times larger than obtained with the IFO 30337 strain which previously was found to produce the largest conversion. The biological activities of the gibberellins from (-)-kaurene with the IFO 9977 strain, as indicated by the elongation of the second leaf sheath of dwarf rice, tan-ginbouzu (Oryza sativa L. cv.), were the most of the ten strains used. Furthermore, the effect of the substrate concentration on the formations of gibberellins also was investigated using the most active strain indicated by the screening tests. Gibberellin formations decreased with increasing substrate concentrations in the culture medium.

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  • Bioremediation by Wood-Rotting fungi (I) : Screening of fungi having ability for degradation of dioxins and degradation of 2,7-Dichlorodibenzo-p-dioxin by some fungi separated by the screening and by some wood-rotting fungi

    TACHIBANA Sanro, OHKAWA Hiroki, ITOH Kazutaka, OKI Tae, HIRABAYASHI Tatuya

    50 ( 12 )   1806 - 1815   1996

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  • リパーゼを用いたエステル交換反応を併用したハゼ木蝋中の粘靭性物質(Ⅰ)α-(ω-カルボキシノナデカノイル)-α',β-ジパルミトイル-グリセロールの調製

    愛媛大学農学部演習林報告   ( 34 )   107 - 121   1996

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  • A trial for aformation of a fusant by protoplast fusion of Gibberella fujikuroi strains

    BULLETIN OF THE EHIME UNIVERSITY FOREST   ( 34 )   93 - 106   1996

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  • Gibberella fujikuroi菌のプロトプラスト融合による融合菌作出の試み(共著)

    愛媛大学農学部演習林報告   ( 34 )   93 - 106   1996

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  • Studies on Biological Treatment of Mechanical Pulps((]G0007[)) Screening of fungi having ability for depression of light-induced color reversion of mechanical pulps with reductive indicators.

    JAPAN TAPPI JOURNAL   50 ( 5 )   811 - 819   1996

  • Studies on Biological Treatment of Mechanical Pulps (VII) Screening of fungi having ability for depression of light-induced color reversion of mechanical pulps with reductive indicators

    Japan Tappi   50 ( 5 )   811 - 819   1996

  • Studies on Biological Treatment of Mechanical Pulps (VIII) : Formation of a fusant having ability for depression of light-induced color reversion of mechanical pulps by protoplast fusion of Phanerochaete chrysosporium and Fusarium solani

    TACHIBANA Sanro, WADA Miyuki, ITOH Kazutaka, ITOH Tomohito, OKI Tae

    50 ( 10 )   1446 - 1455   1996

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  • Gibberella fujikuroi菌のプロトプラスト融合による融合菌作出の試み

    BULLETIN OF THE EHIME UNIVERSITY FOREST   ( 34 )   93 - 106   1996

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  • Studies on Biological Treatment of Mechanical Pulps (VIII) : Formation of a fusant having ability for depression of light-induced color reversion of mechanical pulps by protoplast fusion of Phanerochaete chrysosporium and Fusarium solani

    TACHIBANA Sanro, WADA Miyuki, ITOH Kazutaka, ITOH Tomohito, OKI Tae

    50 ( 10 )   1446 - 1455   1996

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  • Studies on Biological Treatment of Mechanical Pulps (VIII) : Formation of a fusant having ability for depression of light-induced color reversion of mechanical pulps by protoplast fusion of Phanerochaete chrysosporium and Fusarium solani

    TACHIBANA Sanro, WADA Miyuki, ITOH Kazutaka, ITOH Tomohito, OKI Tae

    50 ( 10 )   1446 - 1455   1996

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  • Studies on biological treatment of mechanical pulps (VIII) Formation of a fusant having ability for depression of light-induced color reversion of mecanical pulps by protoplast fusion of Phanerochaete chrysosporium and Fusarium solani

    Sanro Tachibana, Miyuki Wada, Kazutaka Itoh, Tomohito Itoh, Tae Oki

    JAPAN TAPPI JOURNAL   50 ( 10 )   1446 - 1455   1996

  • Studies on Biological Treatment of Mechanical Pulps (VIII) Formation of a fusant having ability for depression of light-induced color reversion of mechanical pulps by protoplast fusion of Phanerochaete chrysosporium and Fusarium solani

    Sanro Tachibana, Miyuki Wada, Kazutaka Itoh, Tomohito Itoh, Tae Oki

    Japan Tappi   50 ( 10 )   1446 - 1455   1996

  • Studies on Biological Treatment of Mechanical Pulps (VII) : Screening of fungi having ability for depression of light-induced color reversion of mechanical pulps with reductive indicators

    ITOH Kazutaka, KAWAMURA Yoshie, SYUTOU Hiroshi, OKI Tae, TACHIBANA Sanrou

    50 ( 5 )   811 - 819   1996

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  • Studies on Biological Treatment of Mechanical Pulps((]G0007[)) Screening of fungi having ability for depression of light-induced color reversion of mechanical pulps with reductive indicators.

    伊藤和貴, 河村佳枝, 首藤宏治, 沖妙, 橘燦郎

    JAPAN TAPPI JOURNAL   50 ( 5 )   811 - 819   1996

  • Bioremediation by Wood-Rotting fungi (I) : Screening of fungi having ability for degradation of dioxins and degradation of 2,7-Dichlorodibenzo-p-dioxin by some fungi separated by the screening and by some wood-rotting fungi

    TACHIBANA Sanro, OHKAWA Hiroki, ITOH Kazutaka, OKI Tae, HIRABAYASHI Tatuya

    50 ( 12 )   1806 - 1815   1996

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  • イヌガヤの組織培養による抗ガン性アルカロイド,イソハリントニンの生成

    愛媛大学農学部演習林報告   ( 33 )   41 - 52   1996

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  • Extractives of Taxus cuspidata Sieb. et Zucc. Leaves and Chemotaxonomy of Trees of Genus Taxus.

    Bulletin of the Ehime University Forest   ( 33 )   1 - 16   1995

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  • グアイアシルグリセロール-β-グアイアシルエーテルとベラトリルグリセロール-β-グアイアシルエーテルのメカノケミストリーの比較に関する研究

    15 ( 3 )   395 - 411   1995

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  • COMPARATIVE STUDIES ON THE MECHANOCHEMISTRY OF GUAIACYLGLYCEROL- AND VERATRYLGLYCEROL-β-GUAIACYLETHER.

    BOOK OF ABSTRACTS, 1995 INTERNATIONAL CHEMICAL CONGRESS OF PACIFIC BASIN SOCIETIES.   66   1995

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  • PREVENTION OF LIGHT-INDUCED COLOR REVERSION OF MECHANICAL PULPS WITH CRUDE ENZYMES FROM FUNGI.

    BOOK OF ABSTRACTS, 1995 INTERNATIONAL CHEMICAL CONGRESS OF PACIFIC BASIN SOCIETIES.   69   1995

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  • Mechanochemistry of Lignin

    SHIKOKU RESEARCH CONFERENCE OF PULP AND PAPER TECHNOLOGY   21 ( 5 )   12 - 30   1995

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  • Formation of Isoharingtonine, an Anti-tumor Alkaloid in Cephalotaxus harringtonia Callus Cultures.

    BULLETIN OF THE EHIME UNIVERSITY FOREST   ( 33 )   41 - 52   1995

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  • イヌガヤの組織培養による抗ガン性アルカロイド, イソハリントニンの生成

    吉田 真弓, 北畑 昌詳, 伊藤 和貴

    愛媛大学農学部演習林報告   ( 33 )   41 - 52   1995

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    Language:Japanese   Publisher:愛媛大学農学部附属演習林  

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  • グアイアシルグリセロール-β-グアイアシルエーテルとベラトリルグリセロール-β-クグアイシルエーテルのメカノケミストリーの比較に関する研究

    66   1995

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  • Taxus Cuspidata葉の抽出成分とイチイ属樹木のケモタキソノミー

    黒瀬 勝彦, 伊藤 和貴, 橘 燦郎

    愛媛大学農学部演習林報告   ( 33 )   1 - 16   1995

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    Language:Japanese   Publisher:愛媛大学農学部附属演習林  

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  • リグニンのメカノケミストリー

    四国紙パルプ研究協議会技術ニュース   21 ( 5 )   12 - 30   1995

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  • 酵素変換による粘靱性物質の合成(第1報)リパーゼを用いたエステル交換反応による粘靱反応による粘靱性物質(1)の調製

    木材学会誌   41 ( 11 )   1022 - 1028   1995

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  • Mechanochemistry of Lignin

    SHIKOKU RESEARCH CONFERENCE OF PULP AND PAPER TECHNOLOGY   21 ( 5 )   12 - 30   1995

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  • Comparative studies on the mechanochemistry of guaiacylglycerol- and veratrylglycerol-β-guaiacyl ether.

    ITOH K, SUMIMOTO M, TANAKA H

    JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY   15 ( 3 )   395 - 411   1995

  • Extrctives of Taxus Cuspidata Sieb. et Zucc. Leaves and Chemotaxonomy of Trees of Genus Taxus.

    BULLETIN OF THE EHIME UNIVERSITY FOREST   ( 33 )   1 - 16   1995

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  • 菌体外粗酵素による機械パルプの色戻り抑制

    69   1995

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  • Comparative studies on the mechanochemistry of guaiacylglycerol- and veratrylglycerol-β-guaiacyl ether.

    JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY   15 ( 3 )   395 - 411   1995

  • 酵素変換による粘靱性物質の合成(第1報) リパーゼを用いたエステル交換反応による粘靱性物質(1)の調製

    木材学会誌   41 ( 11 )   1022 - 1028   1995

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  • PREVENTION OF LIGHT-INDUCED COLOR REVERSION OF MECHANICAL PULPS WITH CRUDE ENZYMES FROM FUNGI.

    BOOK OF ABSTRACTS, 1995 INTERNATIONAL CHEMICAL CONGRESS OF PACIFIC BASIN SOCIETIES.   69   1995

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  • Extractives of Taxus cuspidata Sieb. et Zucc. Leaves and Chemotaxonomy of Trees of Genus Taxus.

    Bulletin of the Ehime University Forest   ( 33 )   1 - 16   1995

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  • Formation of isoharringtonine, an anti-tumor alkaloid in Cephalotaxus harringtonia Callus cultures

    YOSHIDA M.

    Bull Ehime Univ For   33 ( 33 )   41 - 52   1995

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  • COMPARATIVE STUDIES ON THE MECHANOCHEMISTRY OF GUAIACYLGLYCEROL- AND VERATRYLGLYCEROL-β-GUAIACYLETHER.

    BOOK OF ABSTRACTS, 1995 INTERNATIONAL CHEMICAL CONGRESS OF PACIFIC BASIN SOCIETIES.   66   1995

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  • Synthesis of visco-ductile compounds present in Japan wax with enzymes .1. Preparation of visco-ductile compound 1 by interesterification with lipases

    S Tachibana, T Onogi, K Itoh, T Oki

    MOKUZAI GAKKAISHI   41 ( 11 )   1022 - 1028   1995

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    The large visco-ductile compound (1), [ (alpha'',beta'-dipalmitopl) -glyceryl]-alpha- (omega-carbononadecanoyl) -alpha',beta-dipalmitoyl-glycerol, can be prepared from tripalmitin (2) and carboxylic acid (3), alpha-(omega-carboxynonadecanoyl) -alpha',beta-dipalmitoyl)-glycerol, by interesterifications with five commercial lipases in one step. The yield of the Compound 1 changed by the lipases used. The largest yield of Compound 1 was obtained in the yield of 20.1% of Compound 2 when the interesterification was conducted with lipase from Rhizopus delemar. The yield of Compound 1 obtained by the interesterfication with lipase from Mucor miehei was 18.6% and following that from R. delemar. The yields of Compound 1 with Rhizopus sp. and Aspergillus sp. lipases were 12.3% and 7.2%, respectively. The smallest yield of Compound 1 was obtained in a 2.1% yield when the interesterification was conducted with lipase from Aspergillus niger.
    The effects of the solvents, the reaction temperatures, and the added amounts of lipases in the preparation of Compound 1 by interesterifications with lipases also were investigated. The polarities of the solvents in the interesterification were greater and the yield of Compound 1 was less. The present interesterification with lipases was found to have an optimum temperature and optimum amounts of enzymes used.

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  • Extrctives of Taxus Cuspidata Sieb. et Zucc. Leaves and Chemotaxonomy of Trees of Genus Taxus.

    BULLETIN OF THE EHIME UNIVERSITY FOREST   ( 33 )   1 - 16   1995

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  • Formation of Taxol in (Taxus cuspidata)■.-. Sieb. (et)■.-. Zucc. (var. nana)■.-. Rehder Callus cultures. (Jointly authored)

    Mokuzai Gakkaishi   40 ( 11 )   1254 - 1258   1994

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  • Formation of Taxol in Taxus cuspidata Sieb. et Zucc. var. nana Rehder Callus Cultures.

    JOURNAL OF THE JAPAN WOOD RESEARCH SOCIETY   40 ( 11 )   1254 - 1258   1994

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  • Leaf Flavonoids of Taxus brevifolia.

    Mokuzai Gakkaishi   40 ( 12 )   1254 - 1258   1994

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  • PREVENTION OF LIGHT-INDUCED COLOR REVERION OF MECHANICAL PULPS WITH CRUDE ENZYMES FROM FUNGI.

    PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON FIVER SCIENCE AND THECHNOLOGY.   258   1994

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  • Extractives in the Leaves and Bark of Taxus cuspidata Sieb. et. Zucc. var. nana Rehder.

    JOURNAL OF THE JAPAN WOOD RESEARCH SOCIETY   40 ( 9 )   1008 - 1013   1994

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  • Formation of Taxol in Taxus cuspidata Sieb. et Zucc. var. nana Rehder Callus Cultures.

    JOURNAL OF THE JAPAN WOOD RESEARCH SOCIETY   40 ( 11 )   1254 - 1258   1994

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  • Leaf Flavonoids of Taxus brevifolia.

    Mokuzai Gakkaishi   40 ( 12 )   1254 - 1258   1994

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  • PREVENTION OF LIGHT-INDUCED COLOR REVERION OF MECHANICAL PULPS WITH CRUDE ENZYMES FROM FUNGI.

    PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON FIVER SCIENCE AND THECHNOLOGY.   258   1994

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  • Extractives in the Leaves and Bark of Taxus cuspidata Sieb. et. Zucc. var. nana Rehder.

    JOURNAL OF THE JAPAN WOOD RESEARCH SOCIETY   40 ( 9 )   1008 - 1013   1994

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  • キャラボクの組織培養によるTaxolの生成

    橘 燦郎

    木材学会誌   40 ( 11 )   1254 - 1258   1994

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  • Taxus brevifolia葉のフラボノイド

    木材学会誌   40 ( 12 )   1254 - 1258   1994

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  • イチイ科樹木の組織培養(II)

    第44回日本木材学会大会研究発表要旨集   191   1994

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  • キャラボク葉および樹皮の抽出成分

    橘 燦郎

    木材学会誌   40 ( 9 )   1008 - 1013   1994

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  • Extractives in the leaves and Bark of (Taxus cuspidata)■.-. Sieb. (et)■.-. Zucc. (var. nana)■.-. Rehder. (Jointly authored)

    Mokuzai Gakkaishi   40 ( 9 )   1008 - 1013   1994

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  • 細胞融合による高い機械パルプの光退色抑制能をもつ菌の作出の試み

    第44回日本木材学会大会研究発表要旨集   94   1994

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  • Formation of Taxol in (Taxus cuspidata)■.-. Sieb. (et)■.-. Zucc. (var. nana)■.-. Rehder Callus cultures. (Jointly authored)

    Mokuzai Gakkaishi   40 ( 11 )   1254 - 1258   1994

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  • Extractives in the leaves and Bark of (Taxus cuspidata)■.-. Sieb. (et)■.-. Zucc. (var. nana)■.-. Rehder. (Jointly authored)

    Mokuzai Gakkaishi   40 ( 9 )   1008 - 1013   1994

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  • Enzymatic Conversion of Flavonoids to Their Methyl Ethers by an Extracellular Crude Enzyme Solution from (Phanerocahete chrysosporium)■.-.

    Mokuzai Gakkaishi   39 ( 6 )   691 - 699   1993

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  • Studies on Biological Treatment of Mechanical Pulps VI. Effect of carbonyl groups in mechanical pulps on depression of color reversion of mechanical pulps.

    Tachibana Sanro, Adachi Yukio, Ohkubo Katsumi, Itoh Kazutaka, Sumimoto Masashi

    Journal of the Japanese Technical Association of the Pulp and Paper Industry   47 ( 2 )   273 - 284   1993

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    Language:Japanese   Publisher:JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY  

    Reduction of acetophenone derivatives as a model compound for having α-carbonyl group was conducted to find out the effect of carbonyl groups, especially α-carbonyl group, in mechanical pulps on light-induced color reversion. The model compounds could not be almost reduced with potassium borohydride (KBH<SUB>4</SUB>) only, however, the reduction was effectively proceeded by addition of small amount of phase transfer catalyst (PTC). The methyl ether derivatives of acetophenones having no free phenolic hydroxyl group could be reduced with KBH<SUB>4</SUB> accompanied with PTC to the corresponding alcohols in almost quantitative yields in a short time. On the contrary, in the case of the compounds having free phenolic hydroxyl group the reaction proceeded only about 20 to 30 % on the reduction. However, the carbonyl group could be reduced about 75 to 90 % when the phenolic hydroxyl group was blocked as acetate and followed by the reduction. In addition, the reduction products were further deacetylated during the reduction to the corresponding alcohols having free phenolic hydroxyl group.<BR>Based on the results obtained from the model experiments, effect of reduction of carbonyl groups in mechanical pulps on light-induced color reversion was examined. Light-induced color reversion of groundwood pulp (GP), thermomechanical pulp (TMP), and pressurized groundwood pulp (PGW) could be depressed 33-44%, 11-19%, and 11-23%, respectively, to that of untreated pulps by pretreatment of unbleached mechanical pulps with KBH4 accompanied with PTC. And furthermore, the color reversion of GP, TMP, and PGW was also depressed 24-39%, 12-24%, and 10-26%, respectively, to that of untreated one when bleached mechanical pulps were treated with KBH4 accompanied with PTC.<BR>The results showed that the effect of carbonyl groups in GP, TMP, and PGW on light-induced color reversion could be suggested about 30 %, 15 %, and 15 %, respectively. It has been said that carbonyl groups, especially, α-carbonyl group in mechanical pulps are greatly responsible for the color reversion. From the results obtained here, however, it is considered that carbonyl groups in mechanical pulps do not contribute so greatly to the color reversion, though α-carbonyl group functions as a photosensitizer on light-induced color reversion of mechanical pulps.

    DOI: 10.2524/jtappij.47.273

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  • バイオリアクターを用いたカウレンの微生物変換によるジベレリンの生産

    木材学会誌   39 ( 5 )   610 - 615   1993

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  • Studies on Biological Treatment of Mechanical Pulps VI. Effect of carbonyl groups in mechanical pulps on depression of color reversion of mechanical pulps.

    Tachibana Sanro, Adachi Yukio, Ohkubo Katsumi, Itoh Kazutaka, Sumimoto Masashi

    Journal of the Japanese Technical Association of the Pulp and Paper Industry   47 ( 2 )   273 - 284   1993

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    Language:Japanese   Publisher:JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY  

    Reduction of acetophenone derivatives as a model compound for having α-carbonyl group was conducted to find out the effect of carbonyl groups, especially α-carbonyl group, in mechanical pulps on light-induced color reversion. The model compounds could not be almost reduced with potassium borohydride (KBH<SUB>4</SUB>) only, however, the reduction was effectively proceeded by addition of small amount of phase transfer catalyst (PTC). The methyl ether derivatives of acetophenones having no free phenolic hydroxyl group could be reduced with KBH<SUB>4</SUB> accompanied with PTC to the corresponding alcohols in almost quantitative yields in a short time. On the contrary, in the case of the compounds having free phenolic hydroxyl group the reaction proceeded only about 20 to 30 % on the reduction. However, the carbonyl group could be reduced about 75 to 90 % when the phenolic hydroxyl group was blocked as acetate and followed by the reduction. In addition, the reduction products were further deacetylated during the reduction to the corresponding alcohols having free phenolic hydroxyl group.<BR>Based on the results obtained from the model experiments, effect of reduction of carbonyl groups in mechanical pulps on light-induced color reversion was examined. Light-induced color reversion of groundwood pulp (GP), thermomechanical pulp (TMP), and pressurized groundwood pulp (PGW) could be depressed 33-44%, 11-19%, and 11-23%, respectively, to that of untreated pulps by pretreatment of unbleached mechanical pulps with KBH4 accompanied with PTC. And furthermore, the color reversion of GP, TMP, and PGW was also depressed 24-39%, 12-24%, and 10-26%, respectively, to that of untreated one when bleached mechanical pulps were treated with KBH4 accompanied with PTC.<BR>The results showed that the effect of carbonyl groups in GP, TMP, and PGW on light-induced color reversion could be suggested about 30 %, 15 %, and 15 %, respectively. It has been said that carbonyl groups, especially, α-carbonyl group in mechanical pulps are greatly responsible for the color reversion. From the results obtained here, however, it is considered that carbonyl groups in mechanical pulps do not contribute so greatly to the color reversion, though α-carbonyl group functions as a photosensitizer on light-induced color reversion of mechanical pulps.

    DOI: 10.2524/jtappij.47.273

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  • Studies on Biological Treatment of Mechanical Pulps VI. Effect of carbonyl groups in mechanical pulps on depression of color reversion of mechanical pulps.

    Tachibana Sanro, Adachi Yukio, Ohkubo Katsumi, Itoh Kazutaka, Sumimoto Masashi

    Journal of the Japanese Technical Association of the Pulp and Paper Industry   47 ( 2 )   273 - 284   1993

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    Reduction of acetophenone derivatives as a model compound for having α-carbonyl group was conducted to find out the effect of carbonyl groups, especially α-carbonyl group, in mechanical pulps on light-induced color reversion. The model compounds could not be almost reduced with potassium borohydride (KBH<SUB>4</SUB>) only, however, the reduction was effectively proceeded by addition of small amount of phase transfer catalyst (PTC). The methyl ether derivatives of acetophenones having no free phenolic hydroxyl group could be reduced with KBH<SUB>4</SUB> accompanied with PTC to the corresponding alcohols in almost quantitative yields in a short time. On the contrary, in the case of the compounds having free phenolic hydroxyl group the reaction proceeded only about 20 to 30 % on the reduction. However, the carbonyl group could be reduced about 75 to 90 % when the phenolic hydroxyl group was blocked as acetate and followed by the reduction. In addition, the reduction products were further deacetylated during the reduction to the corresponding alcohols having free phenolic hydroxyl group.<BR>Based on the results obtained from the model experiments, effect of reduction of carbonyl groups in mechanical pulps on light-induced color reversion was examined. Light-induced color reversion of groundwood pulp (GP), thermomechanical pulp (TMP), and pressurized groundwood pulp (PGW) could be depressed 33-44%, 11-19%, and 11-23%, respectively, to that of untreated pulps by pretreatment of unbleached mechanical pulps with KBH4 accompanied with PTC. And furthermore, the color reversion of GP, TMP, and PGW was also depressed 24-39%, 12-24%, and 10-26%, respectively, to that of untreated one when bleached mechanical pulps were treated with KBH4 accompanied with PTC.<BR>The results showed that the effect of carbonyl groups in GP, TMP, and PGW on light-induced color reversion could be suggested about 30 %, 15 %, and 15 %, respectively. It has been said that carbonyl groups, especially, α-carbonyl group in mechanical pulps are greatly responsible for the color reversion. From the results obtained here, however, it is considered that carbonyl groups in mechanical pulps do not contribute so greatly to the color reversion, though α-carbonyl group functions as a photosensitizer on light-induced color reversion of mechanical pulps.

    DOI: 10.2524/jtappij.47.273

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  • Studies on Biological Treatment of Mechanical Pulps (VI) - Effect of carbonyl groups in mechanical pulps on depression of color reversion of mechanical pulps.

    Sanro Tachibana, Yukio Adachi, Katsumi Ohkubo, Kazutaka Itoh, Masashi Sumimoto

    Japan Tappi Journal   47 ( 2 )   273 - 284   1993

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    Reduction of acetophenone derivatives as a model compound for having α-carbonyl group was conducted to find out the effect of carbonyl groups, especially α-carbonyl group, in mechanical pulps on light-induced color reversion. The model compounds could not be almost reduced with potassium borohydride (KBH<SUB>4</SUB>) only, however, the reduction was effectively proceeded by addition of small amount of phase transfer catalyst (PTC). The methyl ether derivatives of acetophenones having no free phenolic hydroxyl group could be reduced with KBH<SUB>4</SUB> accompanied with PTC to the corresponding alcohols in almost quantitative yields in a short time. On the contrary, in the case of the compounds having free phenolic hydroxyl group the reaction proceeded only about 20 to 30 % on the reduction. However, the carbonyl group could be reduced about 75 to 90 % when the phenolic hydroxyl group was blocked as acetate and followed by the reduction. In addition, the reduction products were further deacetylated during the reduction to the corresponding alcohols having free phenolic hydroxyl group.<BR>Based on the results obtained from the model experiments, effect of reduction of carbonyl groups in mechanical pulps on light-induced color reversion was examined. Light-induced color reversion of groundwood pulp (GP), thermomechanical pulp (TMP), and pressurized groundwood pulp (PGW) could be depressed 33-44%, 11-19%, and 11-23%, respectively, to that of untreated pulps by pretreatment of unbleached mechanical pulps with KBH4 accompanied with PTC. And furthermore, the color reversion of GP, TMP, and PGW was also depressed 24-39%, 12-24%, and 10-26%, respectively, to that of untreated one when bleached mechanical pulps were treated with KBH4 accompanied with PTC.<BR>The results showed that the effect of carbonyl groups in GP, TMP, and PGW on light-induced color reversion could be suggested about 30 %, 15 %, and 15 %, respectively. It has been said that carbonyl groups, especially, α-carbonyl group in mechanical pulps are greatly responsible for the color reversion. From the results obtained here, however, it is considered that carbonyl groups in mechanical pulps do not contribute so greatly to the color reversion, though α-carbonyl group functions as a photosensitizer on light-induced color reversion of mechanical pulps.

    DOI: 10.2524/jtappij.47.273

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  • MECHANOCHEMISTRY OF SYRINGYLGLYCEROL-BETA-GUAIACYL ETHER AND ITS SIMILARITY TO THE CONVENTIONAL BLEACHING OF MECHANICAL PULPS

    K ITHO, M SUMIMOTO, H TANAKA

    JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY   13 ( 4 )   463 - 479   1993

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    Syringylalcohol (1), alpha-methyl syringylalcohol (2), 3,4,5-trimethoxyphenyl methylcarbinol (3) were dispersed onto filter paper pulp or linter pulp, and treated, respectively, with a ceramic ball mill (CBM) or a vibration ball mill (VBM-1 or -2) under air for 1 h. Mechanical treatment of VBM-2, having the more rigid surface of linter pulp, furnished the p-carbonylphenols (5), (6), and 3,5-dimethoxy-p-benzoquinone (7). Mechanical treatments of syringylglycerol-beta-guaiacyl ether (4) with CBM, VBM, and a laboratory refiner provided alpha-(2-methoxyphenoxy)-beta-hydroxypropiosyringone (8) in the highest yield and a less yield of p-quinone derivative (7) and others as shown in TABLE 2 and FIGURE 3. When treated the resultant mixture with alkaline H2O2, the chromophore (III) can be decomposed, but remarkable amounts of the leucochromophre (IV) are produced as shown in FIGURE 4.

    DOI: 10.1080/02773819308020529

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  • アピゲニンの酵素変換による3',8-ダイマータイプのビスフラボンの調製

    木材学会誌   39 ( 6 )   684 - 690   1993

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  • Phanerochaete chrysosporiumからの菌体外粗酵素液を用いるフラボノイド類の酵素変換によるフラボノイドメチルエーテルの調製

    伊藤 和貴, 橘 燦郎, 住本 昌之

    木材学会誌   39 ( 6 )   691 - 699   1993

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  • 機械パルプの微生物処理に関する研究(第6報)

    紙パルプ技術協会誌   47 ( 2 )   95 - 106   1993

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  • バイオリアクターを用いたカウレンの微生物変換によるジベレリンの生産

    伊藤 和貴

    木材学会誌   39 ( 5 )   610 - 615   1993

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  • Production of Gibberellins from(-)-Kaurene with a Bio-Reactor by Microbial Conversion with (Gibberella)■.-. (fujikuroi)■.-..

    JOURNAL OF THE JAPAN WOOD RESEARCH SOCIETY   39 ( 5 )   610 - 615   1993

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  • MECHANOCHEMISTRY OF SYRINGYLGLYCEROL-BETA-GUAIACYL ETHER AND ITS SIMILARITY TO THE CONVENTIONAL BLEACHING OF MECHANICAL PULPS

    K ITHO, M SUMIMOTO, H TANAKA

    JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY   13 ( 4 )   463 - 479   1993

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    Syringylalcohol (1), alpha-methyl syringylalcohol (2), 3,4,5-trimethoxyphenyl methylcarbinol (3) were dispersed onto filter paper pulp or linter pulp, and treated, respectively, with a ceramic ball mill (CBM) or a vibration ball mill (VBM-1 or -2) under air for 1 h. Mechanical treatment of VBM-2, having the more rigid surface of linter pulp, furnished the p-carbonylphenols (5), (6), and 3,5-dimethoxy-p-benzoquinone (7). Mechanical treatments of syringylglycerol-beta-guaiacyl ether (4) with CBM, VBM, and a laboratory refiner provided alpha-(2-methoxyphenoxy)-beta-hydroxypropiosyringone (8) in the highest yield and a less yield of p-quinone derivative (7) and others as shown in TABLE 2 and FIGURE 3. When treated the resultant mixture with alkaline H2O2, the chromophore (III) can be decomposed, but remarkable amounts of the leucochromophre (IV) are produced as shown in FIGURE 4.

    DOI: 10.1080/02773819308020529

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  • Enzymatic Conversion of Apigenin to 3', 8-Dimer Type Bisflavonoid

    Mokuzai Gakkaishi   39 ( 6 )   684 - 690   1993

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  • ENZYMATIC CONVERSION OF FLAVONOIDS TO THEIR METHYL ETHERS BY AN EXTRACELLULAR CRUDE ENZYME SOLUTION FROM PHANEROCHAETE-CHRYSOSPORIUM

    K ITOH, S TACHIBANA, M SUMIMOTO

    MOKUZAI GAKKAISHI   39 ( 6 )   691 - 699   1993

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    Apigenin methyl ethers and amentoflavone methyl ethers could be prepared by enzymatic conversions of apigenin (flavone) and amentoflavone (bisflavone), respectively, by an extracellular crude enzyme solution from Phanerochaete chrysosporium. In the case of apigenin (1), two apigenin monomethyl ethers (2) and (3) and apigenin dimethyl ether (4) were formed by the conversion in yields of 3.9%, 2.4%, and 0.6%, respectively, of the starting compound. Enzymatic conversion of amentoflavone (13) by the conversion afforded many of its methyl ethers in the reaction products upon thin-layer chromatography (TLC). The four methyl ethers (14)-(17) were isolated from the reaction products, and the yields of the four ethers were 2.8%, 1.6%, 2.1%, and 0.5%, respectively, of the starting compound. The compounds (14)-(17) coincided with the four bisflavone methyl ethers having biological activities that were isolated from the leaves of icho (Ginkgo biloba L.). From the results, it was found that the bisflavone methyl ethers having biological activities existed in the leaves of icho could be prepared from amentoflavone by the conversion method, although the yields were small.

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  • Mechanochemical Conversions of (5-5')-(β-0-4) Type of Lignin Model Compound (Jointly authored)

    Sen'i Gakkaishi   48 ( 11 )   569 - 575   1993

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  • Enzymatic Conversion of Apigenin to 3', 8-Dimer Type Bisflavonoid.

    JOURNAL OF THE JAPAN WOOD RESEARCH SOCIETY   39 ( 6 )   684 - 690   1993

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  • Phanerochaete crysosporiumからの菌対外酵素液を用いるフラボノイド類の酵素変換によるフラボノイドメチルエーテル

    Mokuzai Gakkaishi   39 ( 6 )   691 - 699   1993

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  • Studies on Biological Treatment of Mechanical Pulps(VI) Effect of carbonyl groups in mechanical pulps on depression of color reversion of mechanical pulps.

    Sanro Tachibana, Yukio Adachi, Katsumi Ohkubo, Kazutaka Itoh, Masashi Sumimoto

    Japan Tappi Journal.   47 ( 2 )   273 - 284   1993

  • Enzymatic Conversion of Apigenin to 3', 8-Dimer Type Bisflavonoid.

    JOURNAL OF THE JAPAN WOOD RESEARCH SOCIETY   39 ( 6 )   684 - 690   1993

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  • Mechanochemical Conversions of (5-5')-(β-0-4) Type of Lignin Model Compound (Jointly authored)

    Sen'i Gakkaishi   48 ( 11 )   569 - 575   1993

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  • Mechanochemical conversions of(5-5')-(β-0-4)type of lignin model compound.

    (The Society of Fiber Science and Technology, Japan. )FIBER   49 ( 11 )   569 - 575   1993

  • Production of Gibberellins from(-)-Kaurene with a Bio-Reactor by Microbial Conversion with (Gibberella)■.-. (fujikuroi)■.-..

    JOURNAL OF THE JAPAN WOOD RESEARCH SOCIETY   39 ( 5 )   610 - 615   1993

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  • Mechanochemical conversions of(5-5')-(β-0-4)type of lignin model compound.

    (The Society of Fiber Science and Technology, Japan. )FIBER   49 ( 11 )   569 - 575   1993

  • (5-5')-(β-0-4)型リグニンモデル化合物のメカノケミカル反応

    繊維学会誌   49 ( 11 )   569 - 575   1993

  • シリンギルグリセロール-β-グアイアシルエーテルのメカノケミストリーと機械パルプの漂白との類似性。

    ITHO K, SUMIMOTO M, TANAKA H

    13 ( 4 )   463 - 479   1993

  • β-0-4型リグニンモデル化合物の簡便な合成法

    木材学会誌   38 ( 6 )   579 - 584   1992

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  • 抽出成分の化学変換によるケミカルスと燃料の生産(第9報) 愛媛県内の植栽されているハゼ品種の化学組成とその蝋の性質について

    木材学会誌   38 ( 12 )   1151 - 1158   1992

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  • An Advantageous Synthesis of β-0-4 Type Lignin Model Compounds.

    (The Japan Wood Research Society. )JOURNAL OF THF JAPAN WOOD RESEARCH SOCIETY   38 ( 6 )   579 - 584   1992

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  • CHEMICAL CONVERSION OF EXTRACTIVES FOR THE PRODUCTION OF CHEMICALS AND FUELS .9. CHEMICAL-COMPOSITIONS AND PHYSICAL-PROPERTIES IN HAZE WAX FROM 13 CULTIVARS GROWN IN EHIME PREFECTURE

    S TACHIBANA, K ITOH, K OHKUBO, T OKI, M SUMIMOTO

    MOKUZAI GAKKAISHI   38 ( 12 )   1151 - 1158   1992

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    To promote the production of haze (Rhus spp.) wax by the cultivation of haze cultivars, the chemical composition and physical properties of haze wax from 13 cultivars grown in Ehime Prefecture were investigated. The results were as follows: 1) The content of haze wax from 13 cultivars was in the range of 7-30.5%. The average wax content in the cultivars was 20.0%. 2) Based on a chemical analysis of the wax, no differences in the acid, ester, and saponification values of the wax from the cultivars were recognized, but there was a remarkable difference in the iodine values among the cultivars. 3) There was no difference in chemical compositions of main fatty acids (palumitic, oleic, stearic, archidic, and Japan acids) constituting haze wax in each cultivar. However, the content of Japan acid, a mixture of eicosanedioic and docasanedioic acids which is responsible for the viscoductile propety of haze wax, varied in each cultivar. The average content of Japan acid in the wax from the 13 cultivars was 3.86%. Each cultivar could be divided into four groups by the contents of the acid. Haze wax having greater contents of Japan acid had a tendency to exhibit greater visco-ductility. 4) There was no remarkable relationships between cultivars and physical properties (melting points, viscosities, penetration temperatures, and visco-ductilities, and so on) of the wax. However, smaller visco-ductility of the wax was recognized when the wax had a particularly large iodine value as well as plural penetration temperatures. 5) The Oho haze cultivar in the 13 cultivars was found to be a superior haze cultivar for the production of haze wax because the cultivar had both a large wax content and fine physical properties including great visco-ductility.

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  • An Advantageous Synthesis of β-0-4 Type Lignin Model Compounds. (Jointly authored)

    Mokuzai Gakkaishi   38 ( 6 )   579 - 584   1992

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  • An Advantageous Synthesis of β-0-4 Type Lignin Model Compounds. (Jointly authored)

    Mokuzai Gakkaishi   38 ( 6 )   579 - 584   1992

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  • Behaviours of Formaldehyde Emitted from Lignin to the Field of Mechanochemical Reactions.

    FIBER   48 ( 3 )   112 - 119   1992

  • Behaviours of Formaldehyde Emitted from Lignin to the Field of Mechanochemical Reactions.

    Kazutaka Itoh, Sanro Tachibana, Masashi Sumimoto

    FIBER   48 ( 3 )   112 - 119   1992

  • メカノケミカル反応の場にリグニンから放出されるHCHOの挙動

    繊維学会誌   48 ( 3 )   112 - 119   1992

  • BEHAVIOURS OF FORMALDEHYDE EMITTED FROM LIGNIN TO THE FIELD OF MECHANOCHEMICAL REACTIONS (Jointly authored)

    Kazutaka Itoh, Sanro Tachibana, Masashi Sumimoto

    Sen'i Gakkaishi   48 ( 3 )   112 - 119   1992

  • Mechanochemical conversions of α-(2-methoxyphenoxy)-β-hydroxypropiosyringone

    Kazutaka Itoh, Sanro Tachibana, Masashi Surnimoto, Hiroo Tanaka

    sen'i gakkaishi   48 ( 11 )   625 - 634   1992

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    Language:English  

    Mechanical treatment of either syringaldehyde (1) or acetosyringone (2) with CBM (ceramic ball mill) gave no reaction product, but the treatments with both a VBM (vibration ball mill), and a laboratory refiner produced 3, 5-dimethoxy-p-benzoquinone (3). As a model compound with β-O-4 linkage, α-(2-methoxyphenoxy)-β-hydroxypropiosyringone (4) was therefore synthesized and treated mechanically to find out the reaction products. Differently from the cases of syringaldehyde (1) and acetosyringone (2), the treatments of a larger molecule of compound (4) with CBM, VBM, and a laboratory refiner produced 3.5-dimethoxy-p-benzoquinone (3) and others. By the mechanical treatments of compound (4) in the aqueous media, Daikin-type of radical splitting reactions of Car-Cα and Cα-Cβ bonds occurred to give firstly compounds (3), (10), and (11), secondly compounds (12) and (13). © 1992, The Society of Fiber Science and Technology, Japan. All rights reserved.

    DOI: 10.2115/fiber.48.11_625

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  • An Advantageous Synthesis of β-0-4 Type Lignin Model Compounds.

    (The Japan Wood Research Society. )JOURNAL OF THF JAPAN WOOD RESEARCH SOCIETY   38 ( 6 )   579 - 584   1992

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  • Mechanochemical conversions of α-(2-methoxyphenoxy)-β-hydroxypropiosyringone

    Kazutaka Itoh, Sanro Tachibana, Masashi Surnimoto, Hiroo Tanaka

    sen'i gakkaishi   48 ( 11 )   625 - 634   1992

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    Language:English  

    Mechanical treatment of either syringaldehyde (1) or acetosyringone (2) with CBM (ceramic ball mill) gave no reaction product, but the treatments with both a VBM (vibration ball mill), and a laboratory refiner produced 3, 5-dimethoxy-p-benzoquinone (3). As a model compound with β-O-4 linkage, α-(2-methoxyphenoxy)-β-hydroxypropiosyringone (4) was therefore synthesized and treated mechanically to find out the reaction products. Differently from the cases of syringaldehyde (1) and acetosyringone (2), the treatments of a larger molecule of compound (4) with CBM, VBM, and a laboratory refiner produced 3.5-dimethoxy-p-benzoquinone (3) and others. By the mechanical treatments of compound (4) in the aqueous media, Daikin-type of radical splitting reactions of Car-Cα and Cα-Cβ bonds occurred to give firstly compounds (3), (10), and (11), secondly compounds (12) and (13). © 1992, The Society of Fiber Science and Technology, Japan. All rights reserved.

    DOI: 10.2115/fiber.48.11_625

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  • α-(2-メトキシフェノキシ)-β-ヒドロキシプロピオシリンゴンのメカノケミカル反応。

    繊維学会誌   48 ( 11 )   625 - 634   1992

  • Behaviours of formaldehyde emitted from lignin to the field of mechanochemical reactions

    Kazutaka Itoh, Sanro Tachibana, Masashi Sumitnoto

    sen'i gakkaishi   48 ( 3 )   112 - 119   1991

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    Language:English  

    Treatment of both formaldehyde and creosol dispersed in linter pulp by either CBM and VBM furnished three condensation products I ˜ III. Addition of creosol to pine chips, “rough pulps” (Asplund pulps), and the mill-made “1R-pulps” (TMP), followed by the treatment with laboratory refiner also afforded products I ˜ III. Effect of pH of 4.0, 7.0, and 10.0 on the yields of condensation products I ˜ III was also examined for “rough pulps” and “1R-pulps” by refiner treatment. The higher the pH value, the yields of reaction products I and II increased. © 1992, The Society of Fiber Science and Technology, Japan. All rights reserved.

    DOI: 10.2115/fiber.48.3_112

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  • A Covenient synthesis of p-hydroxy-and p-methoxy cinnamaldehyde.

    Mokuzai Gakkaishi   35 ( 12 )   1154 - 1158   1989

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  • A Convenient Synthesis of p-Hydroxy- and p-llethoxy-cinnamaldehydes.

    JOURNAL OF THE JAPAN WOOD RESEARCH SOCIETY   35 ( 12 )   1154 - 1158   1989

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  • A Covenient synthesis of p-hydroxy-and p-methoxy cinnamaldehyde.

    Mokuzai Gakkaishi   35 ( 12 )   1154 - 1158   1989

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  • シンナムアルデヒド類の簡便な合成法

    橘 燦郎, 伊藤 和貴, 住本 昌之

    木材学会誌   35 ( 12 )   1154 - 1158   1989

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    Language:Japanese   Publisher:日本木材学会  

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  • A Convenient Synthesis of p-Hydroxy- and p-llethoxy-cinnamaldehydes.

    JOURNAL OF THE JAPAN WOOD RESEARCH SOCIETY   35 ( 12 )   1154 - 1158   1989

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Works

  • 高リサイクル性を有する森林資源の開発

    2000 - 2003

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  • Improvement of Forest Resources for Recyclable Forest Products

    2000 - 2003

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Awards

  • 繊維学会,紙・パルプ論文賞

    1994  

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    Country:Japan

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Research Projects

  • Production of biologically active wood extractives by tissue cultures of woody plants

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    Grant type:Competitive

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  • 機械パルプの光による色戻りを抑制する酵素に関する研究

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    Grant type:Competitive

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  • 樹木の組織培養による生理活性物質の生産

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    Grant type:Competitive

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  • Prevention of light-induced color reversion of mechanical pulps with crude enzymes from fungi.

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    Grant type:Competitive

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Teaching Experience (On-campus)

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