异叶蛇葡萄和蛇葡萄提取物抑制黄嘌呤氧化酶和脂质氧化酶的活性研究

Investigation on the Antioxidant Activities in Vitro of Extracts from Ampelopsis humilifolia var.heterophylla and A.sinica

蛇葡萄和异叶葡萄是湖北地区应用的具有抗病毒作用的药用植物 ,它们的抗氧化活性用酶的和非酶的体外抗氧化测定方法进行研究。实验结果显示 ,两种植物的提取物具有抑制黄嘌呤氧化酶和脂质氧化酶的活性 ;用Trolox等价抗氧化能力 (TEAC)方法测定 ,显示两种提取物是ABTS· +自由基离子的清除剂 ,与葡萄种子提取物相比较 。

The antioxidant activities of Ampelopsis humilifolia var heterophylla and A. sinica , antiviral medicinal plants used in Hubei province of China, have been investigated using both enzymatic and non enzymatic antioxidant assays in vitro Extracts from the both plants inhibited xanthine oxidase and lipoxygenase activites, and were scavengers of the ABTS ·+ free radical by Trolox Equivalent Antioxidant Capacity assay(TEAC) The extracts possesses a relatively high TEAC value campared with grape seed extracts