旱柳叶中黄酮及其抗氧化活性的测定  

Determination of Flavonoids from Salix matsudana Leaves and Its Antioxidant Activity

作　　者：刘畅[1] 郭建红[1] 赵鑫鹏[1] 郝丽琴[1] 赵二劳[1] 

机构地区：[1]忻州师范学院化学系,山西忻州034000

出　　处：《山东化工》2016年第16期67-68,70,共3页Shandong Chemical Industry

基　　金：山西省大学生创新创业训练项目(2016381);忻州师范学院大学生科技创新项目(2015);忻州师范学院化学化工大学生创新基地项目(2016)

摘　　要：测定旱柳叶中黄酮含量,并以Vc为对照,采用清除DPPH·法评价旱柳叶黄酮的抗氧化活性。结果表明,旱柳叶中黄酮含量为3.38%。在质量浓度为10.5μg/m L时,旱柳叶黄酮对DPPH·的清除率可达87.9%,而Vc为96.4%。旱柳叶黄酮的EC50为3.78μg/m L,Vc的EC50为3.09μg/m L。旱柳叶黄酮具有较强的抗氧化活性。The aim was to determine flavonoids from Salix matsudana leaves. Meanwhile,taken Vc as control,the antioxidant activity of flavonoids from Salix matsudana leaves had been evaluated with scavenging DPPHo. The results showed that the flavonoids content of Salix matsudana leaves was 3. 38%. When the mass concentration was 10. 5 μg / m L,the scavenging rate of flavonoids on DPPH· was 87. 9%,while the Vc on DPPH· was 96. 4%. The EC50 of flavonoids was 3. 78μg / m L,EC50 of Vc was 3. 09μg / m L. The flavonoids from Salix matsudana leaves possessed strong antioxidant activity.

关 键 词：旱柳叶 黄酮 抗氧化 

分 类 号：R284.2[医药卫生—中药学]