摘要
通过测定总抗氧化能力、清除羟自由基能力、清除DPPH.自由基能力对12种蔬菜的抗氧化活性进行了比较,并且分析了抗氧化活性与总酚、总黄酮含量以及不同抗氧化活性指标之间的关系.结果显示:在测试的12种蔬菜中,总黄酮含量最高的为:菠菜、大蒜、姜、藕、豇豆;最低的有:芦蒿、茼蒿、茨菇、冬瓜、黄瓜.总酚与总抗氧化能力的相关性(R2=0.845 3)要优于总黄酮与总抗氧化能力的相关性(R2=0.827 4).在测定的总抗氧化能力、DPPH.自由基清除能力及清除羟自由基能力3种指标中,DPPH.自由基清除率与清除羟自由基能力的相关性稍强(R2=0.785 3),总的来说各抗氧化能力指标之间的相关性比较弱.
To compare the antioxidant activities of commonly consumed vegetables in Yangzhou. The analysis of total antioxidant capacity, DPPH· radical-scavenging activity and hydroxyl radical-scavenging activity were used to measure the antioxidant activity of 12 vegetables, the antioxidative actions differed greatly among varieties of vegetables. The relevance （ R^2 = 0. 845 3 ） between total phenolic content and antioxidant capacity is superior to the relevance （R^2 = 0. 827 4） of total flavonoids content and total antioxidant capacity. In the capacity of the three indicators, The DPPH· radical-scavenging activity and the hydroxyl radical-scavenging activity is better correlation （R^2 = 0. 785 3 ）. Three indicators antioxidant capacities among the relevance are relatively weak, that may be due to their reaction mechanism for different reasons, there are big difference between antioxidant activities between vegetables, which is also affected by antioxidant activity test method.
出处
《河南工业大学学报（自然科学版）》
CAS
北大核心
2009年第5期35-38,共4页
Journal of Henan University of Technology：Natural Science Edition
基金
江苏省教育厅高校自然科学研究计划项目(05KJB150148)
关键词
蔬菜
总酚
总黄酮
总抗氧化能力
羟自由基
DPPH·
vegetables
total phenolic
total flavoniods
total antioxidant activity
hydroxyl radical
DPPH ·
作者简介
陆广念（1971-），男，江苏扬州人，讲师，硕士，研究方向为食品化学与营养学．
通讯作者
