Glucosylation of Phenolic Compounds by Pharbitis nil Hairy Roots : I. Glucosylation of Coumarin and Flavone Derivatives
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概要
- 論文の詳細を見る
Hairy roots of medicinal morning glory (Pharbitis nil) showed potent glucosylation activity against umbelliferone and aesculetin, so the glucosylation activity against several phenolic compounds was tested. Some coumarin derivatives and flavone derivatives having phenolic hydroxyl groups were incubated with the hairy roots. The coumarin derivatives and flavone derivatives almost disappeared from the culture medium in half a day. In the case of the coumarin derivatives, a 7-hydroxyl group was easily glucosylated. A methyl group at C-8 somewhat decreased the glucosylation to a hydroxyl group at C-7 of the coumarin skeleton. The 4-hydroxy coumarin derivatives were changed to acetophenone-type glucosides by incubation with the hairy roots through decarboxylation.Several flavonol derivatives were tested for glucosylation by the hairy roots. 3-Hydroxy flavone, 3.6-dihydroxyflavone and 3,7-dihydroxyflavone were glucosylated to give 3-glucosylated derivatives. Of these, 3,6-dihydroxyflavone was highly glucosylated, but not 3-hydroxyflavone or 3,7-dihydroxyflavone to the same degree. In the case of the flavones, a 3-hydroxy group could be predominantly glucosylated, and hydroxyl groups on the A and B ring of the flavones affected glucosylation by the hairy roots.
- 社団法人 日本農芸化学会の論文
- 2004-10-23
著者
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KAWAHARA Nobuo
National Institute of Health Sciences
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KUROYANAGI Masanori
School of Bioresources, Hiroshioma Prefectural University
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ITANI Tomio
School of Bioresources, Hiroshioma Prefectural University
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MASUDA Kazuo
Showa Pharmaceutical University
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Kuroyanagi M
Fac. Of Pharmaceutical Sciences At Kagawa Campus Tokushima Bunri Univ.
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Masuda K
Showa Pharmaceutical Univ.
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Masuda Kazuo
Showa College Of Pharmaceutical Sciences
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Masuda K
Showa Pharmaceutical University
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NAKANE Takahisa
Tsukuba Medicinal Plant Station, National Institute of Health Sciences
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Nakane Takahisa
Biological Sci. Res. Lab. Lion Corp.
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Nakane Takahisa
Showa Pharmaceutical Univ.
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Kawahara N
National Institute Of Health Sciences
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Takase Yoichi
Showa Pharmaceutical University
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Itani Tomio
School Of Bioresources Hiroshima Prefectural University
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Kuroyanagi Masanori
Fac. Of Pharmaceutical Sciences At Kagawa Campus Tokushima Bunri Univ.
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川原 信夫
National Institute Of Health Sciences
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Takase Yoichi
Showa Pharmaceutical Univ.
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KANHO Hideki
School of Bioresources, Hiroshima Prefectural University
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YAOYA Sayaka
School of Bioresources, Hiroshima Prefectural University
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Yaoya Sayaka
School Of Bioresources Hiroshima Prefectural University
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Kanho Hideki
School Of Bioresources Hiroshima Prefectural University
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Kuroyanagi Masanori
School Of Bioresources Hiroshima Prefectural University
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Itani T
School Of Bioresources Hiroshima Prefectural University
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Kimura Mariko
Fac. Of Food Culture Dep. Of Nutrition Kurashiki Sakuyo Univ.
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Kawahara Nobuo
Tsukuba Div. Res. Center For Medicinal Plant Resources National Inst. Of Biomedical Innovation
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Kawahara Nobuo
National Inst. Health Sci. Tokyo Jpn
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NAKANE Takahisa
Tsukuba Medicinal Plant Research Station, National Institute of Health Sciences
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