藜麦提取物体外抗氧化活性研究  

Determination of the in vitro antioxidant capacity of quinoa seeds extracts

作　　者：相启森[1,2] 张丽华[1,2] 姜亭亭[1,2] 张文杰[1,2] 李银丽[1,2] 申瑞玲[1,2] 

机构地区：[1]郑州轻工业学院食品与生物工程学院,河南郑州450002 [2]河南省食品生产与安全协同创新中心,河南郑州450002

出　　处：《食品工业科技》2016年第2期78-81,共4页Science and Technology of Food Industry

基　　金：河南省高等学校重点科研项目(15A550024);郑州轻工业学院博士科研基金资助项目(2013BSJJ079)

摘　　要：以产自山西的藜麦为研究对象,以对DPPH·和ABTS+·的清除能力、铁还原力等为指标,评价了其提取物的体外抗氧化活性。结果表明,藜麦提取物对DPPH·和ABTS+·均有较强的清除能力,其IC_(50)分别为(43.13±2.41)mg/m L和(27.91±1.46)mg/m L;FRAP法测得藜麦抗氧化能力为(1.90±0.10)mg Fe SO_4/g;此外,藜麦提取物能够有效抑制自由基引发的亚油酸过氧化和牛血清白蛋白氧化降解。藜麦提取物具有较强的体外抗氧化活性,为其体内抗氧化活性的研究奠定了基础。The aim of this study was to investigate the in vitro antioxidant activities of extract from quinoa seeds collected from Shanxi using various methods,including DPPH· and ABTS＋· scavenging assays and ferric reducing antioxidant power（FRAP） assay. The results showed that the quinoa extract had strong scavenging activities for DPPH· and ABTS＋· radicals. The radical scavenging IC50 values of quinoa extract were（43.13±2.41） mg/m L and（27.91±1.46） mg/m L for DPPH· and ABTS＋· radicals,respectively. The FRAP value of quinoa was（1.90±0.10） mg Fe SO4/g. The quinoa extract also significantly inhibited free radical-induced peroxidation of linoleic acid and oxidative degradation of bovine serum albumin. The present study demonstrated the in vitro antioxidant potential of quinoa seeds extracts,providing scientific basis for the estimation of the in vivo antioxidant activities of quinoa seeds.

关 键 词：藜麦 抗氧化活性 自由基清除能力 铁还原能力 

分 类 号：TS202.1[轻工技术与工程—食品科学]