高粱红色素的体外抗氧化研究  

In vitro antioxidative properties of sorghum red pigment

作　　者：朱耀华[1] 杨建雄[2] 代斌[2] 

机构地区：[1]陕西师范大学物理学与信息技术学院 [2]陕西师范大学生命科学学院,陕西西安710062

出　　处：《陕西师范大学学报（自然科学版）》2009年第3期66-69,共4页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：国家自然科学基金资助项目(20175012)

摘　　要：为研究高粱红色素的体外抗氧化活性,测定了高粱红色素对1,1-二苯基-2-苦苯肼自由基(DPPH.)、超氧自由基(O2.-)和羟自由基(.OH)的清除能力,还原力,对Fe2+诱导的脂质过氧化反应和β-胡萝卜素/亚油酸自氧化体系的抑制作用.结果表明,高粱红色素对DPPH.有较好的清除能力,能很好地清除O2-.和.OH,对Fe2+诱导的脂质过氧化有一定的抑制作用,对β-胡萝卜素/亚油酸自氧化体系有明显的抑制作用.可见高粱红色素具有良好的抗氧化能力,除作为色素使用外,也可作为抗氧化剂使用.The antioxidative activity of sorghum red pigment（SRP） was investigated by employing several in vitro assay systems,including 1,1diphenyl-2-picrylhydrazyl（DPPH·）/ peroxide anion radical /hydroxyl radical scavenging,peroxidation of polyunsaturated fatty acid from yolk lipoprotein induced by Fe^2＋ method,and β-carotene/linoleic acid assay system.SRP showed a higher scavenging activity against free radicals such as DPPH·,peroxide anion radical and hydroxyl radical.Furthermore,SRP exhibited powerful inhibitory effects on peroxidation of polyunsaturated fatty acid from yolk lipoprotein induced by Fe^2＋ and notable inhibitory effects on β-carotene/ linoleic acid assay system at all the tested concentration levels.According to our results,SRP can be used to serve as pigment and antioxidant.

关 键 词：高粱红色素 体外抗氧化 DPPH自由基 超氧自由基 羟自由基 

分 类 号：R284.2[医药卫生—中药学]