Molecular design for physiologically active compounds from lignin by oxidative degradation
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- Mikame Keigo
- Faculty of Agriculture, Niigata University
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- Watanabe Kurumi
- Faculty of Agriculture, Niigata University
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- Watanabe Takashi
- Research Institute for Sustainable Humanosphere, Kyoto University
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- Funaoka Masamitsu
- LIPS (Lignophenol & Systems), Collaborative Innovation Partnership
抄録
<p> It is important that lignin convert to high value-added product for effective utilization. It is said that lignin has little physiologically activity, although the various polyphenols of similar structure to lignin, for example lignans, flavonoids, stilbene, have various physiologically activity. In this study the physiologically active compounds molecularly designed from lignin based on structure of high activity polyphenols. The objective structure characteristic of lignin derivatives is as follows. 1) Phenolation of lignin with 1,2-dihydroxy aromatic derivatives, 2) Conversion of native lignin to β-O-4 type lignin, 3) Control of molecular weight (Mw1000-3000), 4) Conversion to long conjugate structure. o-Dihydroxy phenolation and conversion of native lignin to β-O-4 type lignin were achieved by phase separation system with catechol. Control of molecular weight of lignin derivatives and induction of long conjugate structure were occurred by alkaline cupric (CuO) oxidative degradation. The structure characteristic of lignin derivatives through the these treatment were analyzed by PDA-GPC, LC-MS and FT-IR. The antioxidative activity of lignin derivatives were largely similar to catechin in spite of polymer, extremely useful as physiologically active compounds from lignin.</p>
収録刊行物
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- Transactions of the Materials Research Society of Japan
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Transactions of the Materials Research Society of Japan 46 (1), 29-32, 2021-03-01
一般社団法人 日本MRS
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詳細情報 詳細情報について
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- CRID
- 1390568772522972416
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- NII論文ID
- 130007993789
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- ISSN
- 21881650
- 13823469
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可