Effect of chlorogenic acid on antioxidant activity of Flos Lonicerae extracts.

被引：72
作者：
Wu L. [1 ]
机构：
[1] Department of Horticulture, Beijing Vocational College of Agriculture, Beijing
来源：
Journal of Zhejiang University SCIENCE B | 2007年 / 8卷 / 9期
关键词：
Chlorogenic acid; Antioxidant; R282.71;
D O I：
10.1631/jzus.2007.B0673
中图分类号：
学科分类号：
摘要：
Flos Lonicerae is a medically useful traditional Chinese medicine herb. However, little is known about the antioxidant properties of Flos Lonicerae extracts. Here the antioxidant capacity of water, methanolic and ethanolic extracts prepared from Flos Lonicerae to scavenge 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical and reduce Fe(3+) to Fe(2+) is examined. Chlorogenic acid, a major component of Flos Lonicerae, is identified and further purified from 70% ethanolic extract with high performance liquid chromatography (HPLC) and its antioxidant capacity is characterized. The total phenolic compounds and chlorogenic acid contents in Flos Lonicerae are determined. The present results demonstrate that the Flos Lonicerae extracts exhibit antioxidant activity and chlorogenic acid is a major contributor to this activity.
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页码：673 / 679
页数：6
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