玉米须中黄酮类化合物的抗氧化活性研究  

Study on Antioxidation Activity of Flavones in Corn Silk

作　　者：赵强[1] 赵二劳[1] 赵昀[1] 郭晓霞[1] 

机构地区：[1]忻州师范学院,忻州034000

出　　处：《食品工业》2011年第1期36-38,共3页The Food Industry

基　　金：山东省高校科技计划项目(J09LC75)

摘　　要：采用多个抗氧化能力评价体系,包括清除DPPH?自由基、羟自由基(.OH)和超氧阴离子自由基(O2ˉ.)体系,评价玉米须中黄酮类化合物的抗氧化活性。结果表明:玉米须黄酮具有较强的抗氧化活性,对DPPH?自由基、羟自由基和超氧阴离子自由基的半清除率IC50分别为0.057 mg/mL、0.38 mg/mL和0.56 mg/mL。玉米须黄酮的浓度与其活性大小呈明显的量效关系。The antioxidation activity of flavones in corn silk was evaluated,using various antioxidant assays,which included the scavenging on DPPH,hydroxyl radical system（·OH）and superoxide anion radical system（O2-·）.Results showed that the flavones in corn silk had higher antioxidation activity.The half scavenging rate（IC50） of DPPH,hydroxyl radical system（·OH）and superoxide anion radical system（O2-·） were 0.057 mg/mL,0.38 mg/mL and 0.56 mg/mL.A significant positive correlation was found between the concentration of flavones in corn silk and its activity.

关 键 词：玉米须 黄酮 抗氧化活性 

分 类 号：S513[农业科学—作物学]