摘要
研究北五味子提取液对DPPH自由基的清除作用。以芦丁和齐墩果酸为标准品测定提取液中总黄酮和齐墩果酸含量;采用分光光度法分析提取液清除DPPH自由基的作用,并与Vc进行比较。北五味子提取液中总黄酮和齐墩果酸的含量分别为49.80μg/mL和235.92μg/mL;随着浓度的增加,提取液对DPPH自由基的清除率也增加,呈现一定的量效关系;同浓度下,北五味子提取液及Vc对DPPH自由基的清除率为77.23%和94.55%。北五味子提取液对DPPH自由基有很好的清除作用,是一种有前途的天然抗氧化剂。
To study the Schisandra chinensis extract on DPPH free radical scavenging effects. Using rutin and oleanolic acid as the standard determination extract total flavone and oleanolic acid; spectrophotometric analysis by scavenging DPPH free radical effect, and compared with the Vc. The contents of flavonoids and of oleanolic acid were 49.80 μg/mL and 235.92μg/mL; with the extracting solution concentration increased, the DPPH free radical scavenging rate also increased, showing certain dose-effect relationship; the same concentration, the Schisandra chinensis extract and Vc on the DPPH radical removal rates were 77.23% and 94.55%. Schisandra chinensis extract on DPPH has strong scavenging effect, is a kind of promising natural antioxidants.
出处
《食品科技》
CAS
北大核心
2012年第6期247-250,共4页
Food Science and Technology
关键词
北五味子
DPPH自由基
提取
Schisandra chinensis
DPPH free radical
extract
