摘要
分析常见蔬菜总抗氧化活性,探讨蔬菜抗氧化能力与酚酸、总黄酮的相关性。采用ABTS、DPPH与FRAP法测定10种常见蔬菜的抗氧化能力,采用Folin-Ciocalteu法测总酚酸,硝酸铝-亚硝酸钠-氢氧化钠法测总黄酮,采用matlab软件进行拟合抗氧化与酚酸、总黄酮的函数方程。结果表明:抗氧化活性与主要抗氧化物质(酚酸和黄酮)的函数关系为Z=-137.743 2-0.918 2 X2+0.211 2Y2-0.422 9 XY+52.843 5 X+2.229 9Y。当总黄酮在6～26mg/100g时,总黄酮、酚酸的量对总抗氧化活性有促进作用;而在27～54mg/100g范围内,总黄酮和酚酸的含量对总抗氧化能力具有一定的抑制作用。
The paper was to evaluate the correlation of phenolic acid,flavonoids and antioxidant capacity.ABTS,DPPH and FRAP methods were used to determinate antioxidant capacity of 10 kinds of vegetables.The correlation of phenolic acid,flavonoids and antioxidant capacity was analysed with matlab.Results： The function of antioxidant（phenolic acid and flavonoids） and antioxidant capacity was as following：Z =-137.743 2-0.918 2X2 ＋ 0.211 2Y2-0.422 9XY ＋ 52.843 5X ＋ 2.229 9Y.There was a positive correlation between the content phenolic acid and total antioxidant activity.The interaction between phenolic acid and flavonoid had inhibitory effect on antioxidant capacity.
出处
《食品与机械》
CSCD
北大核心
2012年第3期139-143,共5页
Food and Machinery
基金
南昌大学"赣江学者奖励计划"项目
