Anti-oxidant activity of isolates from acid hydrolysates of Eucalyptus globulus wood

被引：36

作者：

Cruz, JM ^{[1
]}

Domínguez, H ^{[1
]}

Parajó, JC ^{[1
]}

机构：

[1] Univ Vigo, Fac Ciencias, Dept Enxeneria Quim, Orense 32004, Spain

来源：

FOOD CHEMISTRY | 2005年 / 90卷 / 04期

关键词：

Eucalyptus globulus wood; acid hydrolysates; ethyl acetate extract; anti-oxidant activity;

D O I：

10.1016/j.foodchem.2004.05.018

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The ethyl acetate-soluble fraction of Eucalyptus globulus wood hydrolysates was fractionated on a Sephadex LH-20 column, using methanol as the mobile phase to give four fractions, and both the DPPH (alpha,alpha-diphenyl-beta-picrylhydrazyl) radical-scavenging activity and composition of raw extracts and isolates were determined. One of the fractions isolated (denoted F4) showed a remarkable anti-oxidant activity (EC50 of 0.15 g/l, in comparison with 0.55 g/l for crude extracts), presenting a comparatively high phenolic content, with ellagic acid as the main component. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：503 / 511

页数：9

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