Polyphenolic compounds from Geranium pratense and their free radical scavenging activities

被引：37

作者：

Akdemir, ZS ^{[1
]}

Tatli, II

Saracoglu, I

Ismailoglu, UB

Sahin-Erdemli, I

Çalis, I

机构：

[1] Hacettepe Univ, Fac Pharm, Dept Pharmacognosy, TR-06100 Ankara, Turkey

[2] Hacettepe Univ, Fac Pharm, Dept Pharmacol, TR-06100 Ankara, Turkey

来源：

PHYTOCHEMISTRY | 2001年 / 56卷 / 02期

关键词：

Geranium pratense subsp finitimum (Woronow) Knuth; Geraniaceae; flavonoid; myricetin 3-O-(2 '-O-galloyl)-beta-D-glucopyranoside; (-)-6-chloroepicatechin; free radical scavenger;

D O I：

10.1016/S0031-9422(00)00367-8

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：

Two new polyphenolic compounds, myricetin 3-O-(2"-O-galloyl)-beta -D-glucopyranoside and (-)-6-chloroepicatechin, were isolated from the aerial parts of Geranium pratense subsp. finitimum (Woronow) Knuth, along with three known polyphenolic compounds [quercetin 3-O-(2"-O-galloyl)-beta -D-glucopyranoside, quercetin 3-O-(2"-O-galloyl)-beta -D-galactopyranoside, methyl gallate] and tryptophan. Quercetin 3-O-beta -D-glucopyranoside, quercetin 3-O-beta -D-galactopyranoside, quercetin 3-O-(2"-O-galloyl)-beta -D-glucopyranoside and quercetin 3-O-(2"-O-galloyl)-beta -D-galactopyranoside were found to be effective against free radical induced impairment of endothelium-dependent relaxation in isolated rat aorta. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：189 / 193

页数：5

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