| 薯莨及红根皮单宁组分的研究(凝缩类单宁组分研究之四) |
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| 引用本文： | 蒋克妮,罗庆云,孙达旺,来.伊.符.薯莨及红根皮单宁组分的研究(凝缩类单宁组分研究之四)[J].林产化学与工业,1988(1). |
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| 作者姓名： | 蒋克妮 罗庆云 孙达旺 来.伊.符 |
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| 作者单位： | 南京林业大学林产化学工程系，南京林业大学林产化学工程系，南京林业大学林产化学工程系，新西兰科学工业研究部化学研究所 南京，南京，南京 |
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| 摘 要： | 从薯莨(Dioscorea cirrhosa)块茎及红根(Rosa spp.)根皮提取物中分离出来的单宁,通过各种降解反应及波谱方法研究,均判定为原花青定。其中的终端单元及延伸单元,都由(+)-儿茶素及(-)-表儿茶素组成,但(-)-表儿茶素单元在薯莨原花青定中占大部分,(+)-儿茶素单元在红根原花青定中占大部分。
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| 关 键 词： | 薯莨 红根 原花色素 原花青定 黄烷-3-醇 凝缩单宁 |
TANNINS FROM DIOSCOREA CIRRHOSA AND ROSA SPP. BARK |
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| Jiang Keni Luo Qingyun Sun Dawang,Lai Y. Foo.TANNINS FROM DIOSCOREA CIRRHOSA AND ROSA SPP. BARK[J].Chemistry & Industry of Forest Products,1988(1). |
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| Authors: | Jiang Keni Luo Qingyun Sun Dawang Lai Y Foo |
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| Institution: | (Studies on Condensed Tannins IV )
Jiang Keni Luo Qingyun Sun Dawang
(Department of Chemistry and Engineering of Forest Products,Nanjing Forestry University Nanjing)
Lai Y. Foo (Chemistry Division,DS1R,New Zealand) |
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| Abstract: | Tannins isolated from extracts of yam tuber (Dioscorea cirrhosa) and redroot (Rosa spp.) bark were studied through various degradative reactions and spectrometric methods. Both were identified as procyanidins. The terminal units and extension units are both composed of (+)-catechin and (-)-epicatechins, but with (-)-epicatechin predominantly in yam tuber procyanidins and(+)- catechin predominantly in redroot bark procyanidins. |
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| Keywords: | Dioscorea cirrhosa (yam tuber) Rosa spp (redroot) Pro-anthocyanidin Procyanidin Flavan-3-ol Condensed tannin |
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