范艳丽,韩丽娜,付丽霞,孟雪梅,田建文

• 1:宁夏大学农学院
• 2:宁夏科技厅

摘要(Abstract)：

采用有机溶剂浸提法(70%乙醇)提取枸杞叶中的黄酮类化合物,然后以枸杞叶黄酮提取物为研究对象,以Vc和BHT为阳性对照,通过自由基清除实验体外评价产物的抗氧化活性。结果表明:枸杞叶黄酮提取物中黄酮类化合物的含量为277.7mg/g。枸杞叶黄酮提取物对超氧阴离子自由基、羟基自由基、DPPH~+、亚硝基自由基、ABTS+具有显著的清除能力,其最大清除率分别为62%,84%,80%,34%,78%,对Fe~(3+)的还原能力达到Vc和BHT还原能力的50%。结论:所提取的枸杞叶黄酮类化合物具有较高的体外抗氧化活性,可为枸杞叶黄酮类化合物资源的开发利用提供依据。

关键词(KeyWords)： 枸杞叶;黄酮类化合物;抗氧化

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(31660438)

作者(Author): 范艳丽,韩丽娜,付丽霞,孟雪梅,田建文

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