Antioxidative polyphenols from walnuts (Juglans regia L.)

被引：412

作者：

Fukuda, T ^{[1
]}

Ito, H ^{[1
]}

Yoshida, T ^{[1
]}

机构：

[1] Okayama Univ, Fac Pharmaceut Sci, Okayama 7008530, Japan

来源：

PHYTOCHEMISTRY | 2003年 / 63卷 / 07期

关键词：

walnuts; Juglans regia; Juglandaceae; glansrins A-C; ellagitannin; antioxidant; SOD-like effect; radical scavenger;

D O I：

10.1016/S0031-9422(03)00333-9

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 [生物化学与分子生物学]; 081704 [应用化学];

摘要：

Three hydrolyzable tannins. glansrins A-C. together with adenosine, adenine, and 13 known tannins were isolated from the n-BuOH extract of walnuts (the seeds of Juglans regia L.). Glansrins A-C were characterized as ellagitannins with a tergalloyl group, or related polyphenolic acyl group, based on spectral and chemical evidence. The 14 walnut polyphenols had superoxide dismutase (SOD)-like activity with EC50 21.4-190 muM and a remarkable radical scavenging effect against 1,1-diphenyl-2-picrylhydrazyl (DPPH) (EC50 0.34-4.72 muM). (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：795 / 801

页数：7

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