OLIGOMERIC AND POLYMERIC PROCYANIDINS FROM GRAPE SEEDS

被引：486

作者：

PRIEUR, C

RIGAUD, J

CHEYNIER, V

MOUTOUNET, M

机构：

[1] I.N.R.A., Institut des Produits de la Vigne, Laboratoire des Polymères et des Techniques Physico-chimiques, 34060 Montpellier cedex

来源：

PHYTOCHEMISTRY | 1994年 / 36卷 / 03期

关键词：

VITIS VINIFERA; VITACEAE; GRAPE; PROCYANIDINS; CONDENSED TANNINS; FLAVAN-3-OLS;

D O I：

10.1016/S0031-9422(00)89817-9

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Five tannin fractions were isolated from grape (Vitis vinifera) seeds. HPLC analysis of the degradation products released by thioacidolysis showed that all fractions consisted of catechin, epicatechin and epicatechin gallate units. Epicatechin was the major component in the extended chain. Catechin was more abundant in terminal units than in extension units. The proportion of galloyllated units varied from 13% to 29% as the M(r) increased. Mean degrees of polymerization ranging from 2.3 to 15.1 (by thiolysis) and from 2.4 to 16.7 (by GPC) were determined.

引用

页码：781 / 784

页数：4

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