期刊论文

中文

中南林业科技大学学报

1673-923X

2010

30

10

125-128,132

10.14067/j.cnki.1673-923x.2010.10.019

湖南省教育厅基金资助项目（07C811）；

本校为第一机构

用DPPH.自由基检测法测定了川桂叶总黄酮清除自由基的生物活性.在波长为517 nm,反应时间45min的条件下测定了川桂叶总黄酮,芦丁和二丁基羟基甲苯(BHT)清除DPPH自由基的EC50值.结果表明,川桂叶总黄酮对DPPH.自由基具有明显的清除作用,川桂叶总黄酮,芦丁和BHT清除DPPH.自由基的EC50值分别为4.145 mg/L,9.650 mg/L,37.91 mg/L,清除DPPH.自由基能力的大小顺序为川桂叶总黄酮>芦丁>BHT

The total flavonoids were extracted from Cinnamomum Wilsonii Gamble leaves.Their radical scavenging activities were determined by using DPPH radical scavenging method.EC50 values of the total flavonoids from Cinnamomum Wilsonii Gamble leaves,Rutin and BHT on DPPH radical scavenging were determined under wavelength of 517 nm and reaction time of 45 min.The results showed that the total flavonoids from Cinnamomum Wilsonii Gamble leaves have more significant effects on DPPH radical scavenging.EC50 values of the total flavonoids from Cinnamomum Wil...