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野生鱼腥草黄酮化合物对羟基自由基的清除作用
Hydroxyl radical eliminating activities of flavonoid extracted from Houttuynia cordata Thunb.
【摘要】 以六盘水当地野生鱼腥草为原料,利用70%乙醇作为提取介质对黄酮类化合物进行了提取,并对提取液中黄酮类化合物对羟基自由基的清除作用进行了研究。结果表明:当黄酮浓度为51.644μg/mL时,对羟基自由基的清除率为61.487%;黄酮浓度在30.986μg/mL至51.644μg/mL的范围内与清除率呈正相关。
【Abstract】 The hydroxyl radical eliminating activities of flavonoid extracted from Liu Panshui of Houttuynia cordata Thunb.by 70% alcohol was studied.The results indicate that the eliminating ratio ofhydroxyl radical reached 61.487% when flavonoid concentration is 51.644 μg/mL.The flavonoid concentration in the range of 30.986~51.644 μg/mL is in proportion to eliminating ratio.
【关键词】 鱼腥草;
黄酮类化合物;
羟基自由基;
清除率;
【Key words】 Houttuynia cordata Thunb.; flavonoid; hydroxyl radical; eliminating ratio;
【Key words】 Houttuynia cordata Thunb.; flavonoid; hydroxyl radical; eliminating ratio;
【基金】 贵州省教育厅自然科学研究项目(黔教科[2007]094号)
- 【文献出处】 食品科技 ,Food Science and Technology , 编辑部邮箱 ,2009年06期
- 【分类号】R285
- 【被引频次】37
- 【下载频次】597