草果中不同多酚类体外抗氧化活性研究

CHEN Xiao, ZENG Weiyan, WANG Xiang,SUN Fenghui, DAI Min,PU Zhonghui

Sichuan Food and Fermentation(2023)

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Abstract
比较草果中两种不同多酚类体外抗氧化活性.以Vc为阳性对照,采用体外抗氧化活性方法,测定草果中不同多酚类黄酮和酚酸对DPPH·、ABTS+·、·OH、O2·-清除能力和Fe3+还原力.结果表明,草果中不同多酚类在0.625 mg/mL时对DPPH·清除率均达到80%以上,还具有一定的ABTS+·、·OH、O2·-清除作用和Fe3+还原作用.其清除效果与草果多酚浓度具有剂量依赖性.草果酚酸对DPPH·清除能力优于草果黄酮;草果黄酮对ABTS+·、·OH、O2·-清除能力和Fe3+还原能力均强于酚酸.
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