THE CONDENSED TANNINS OF LEPTARRHENA-PYROLIFOLIA

被引：3

作者：

KOUPAIABYAZANI, MR

BOHM, BA

机构：

[1] Department of Botany, The University of British Columbia, Vancouver, BC V6T 1Z4

来源：

PHYTOCHEMISTRY | 1993年 / 33卷 / 06期

关键词：

LEPTARRHENA-PYROLIFOLIA; SAXIFRAGACEAE; PROANTHOCYANIDINS; CONDENSED TANNINS; FLAVAN-3-OLS; (+)-CATECHIN; (-)-EPICATECHIN; STEREOCHEMISTRY; PRODELPHINIDIN; PROCYANIDIN;

D O I：

10.1016/0031-9422(93)85116-9

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：

A proanthocyanidin (PA) polymer, a condensed tannin, was isolated, purified and characterized from the leaves of Leptarrhena pyrolifolia. The predominant extension units in the polymer were (-)-epicatechin and (+)-gallocatechin with traces of (-)-epigallocatechin. (+)-Catechin was the predominant terminal unit. The PA polymer contained both prodelphinidin and procyanidin units in the estimated ratio of ca 1. The cis: trans ratio and the number-average M, of the polymer were determined and are discussed.

引用

页码：1485 / 1487

页数：3

共 14 条

[1] POLYMERIC PROANTHOCYANIDINS - STEREOCHEMISTRY, STRUCTURAL UNITS, AND MOLECULAR-WEIGHT [J].