目的 研究了荷叶水提物(LLE)对羟基自由基(°OH)和超氧阴离子自由基(O^÷₂)的清除效果。 方法 采用电子自旋共振法自旋捕集技术。 结果 26.95μg/ mL的LLE对次黄嘌呤-黄嘌呤氧化酶体系产生O^÷₂的清除率达65.6%, LLE浓度大于 8.98mg/mL时可以全部清除由 Fenten反应体系产生的°OH。结论 LLE对°OH和O^÷₂有很强的清除能力

Object To study the action of lotus leaf extract(LLE) in scavengings hydroxyl and super-oxide anion radical. Methods By spintrapping with electronspin resonance. Results 26.94ug/mLLLE can scavenge 65.60% superoxideanion radical(O^÷₂) produced by Hypoxanthine-Xanthine oxidase system, while at concent rations over 8.98mg/mL a complete eradication of hydroxyl radical(°OH) produced from Fenten reaction system was achieved. Conclusion LLE is highly effective in scavenging °OH and O^÷₂ free radicals.

广东省博士后基金资助