槲皮素及一些中草药提取物抗自由基作用的初步研究

Preliminary Study on the Anti-free-radical Effects of Quercetin and some Shinese Herbs Extracts

本文采用产生超氧阴离子（O2）自由基的黄嘌呤—黄嘌呤氧化酶—鲁米诺（Luminol）发光体系,在体外检测黄芪、红芪、大花罗布麻及其主要成份槲皮素的抗（O2）自由基作用。实验表明上述药物均有不同程度的抗（O2）自由基作用,其中以槲皮素的作用最强.

The anti-free-radical effects of Astragalus membrances,Hedysarum polybetrys, Apocynum Venetum Linn and Quercetin were～termined by means of xanthin-xanthin oxidase-luminol chemiluminescence system in vivro.It reveals in that abovemention drugs exert anti-free-radical effects varying degrees,and the Quercetin is the most effective one.