DPPH法测定典型植物油的抗氧化活性  

Determination of Antioxidant Activity of Typical Vegetable Oils by DPPH Method

作　　者：纪璐璐 张丽 张思访 封帆 韩文静 Ji Lulu;Zhang Li;Zhang Sifang;Feng Fan;Han Wenjing(Jiangsu Health Vocational College,Nanjing 211800,China)

机构地区：[1]江苏卫生健康职业学院,江苏南京211800

出　　处：《广东化工》2022年第22期220-222,共3页Guangdong Chemical Industry

基　　金：江苏省大学生创新创业训练计划项目(202014255003Y);江苏卫生健康职业学院校级科研项目(校20210068)。

摘　　要：通过DPPH法测定了四种植物油(橄榄油、油茶籽油、菜籽油、大豆油)抗氧化、清除自由基能力,并与抗氧化剂VE进行比较。研究结果:橄榄油抗氧化性最强,其次分别为油茶籽油,大豆油,最弱的是菜籽油。1 g VE所具有的抗氧化能力分别相当于140.01 g橄榄油、157.73 g油茶籽油、297.08 g大豆油、382.44 g菜籽油的抗氧化能力。研究表明:DPPH法可以用于橄榄油、油茶籽油、大豆油、菜籽油的抗氧化能力的测定,并能很好地反映出四种植物油与抗氧化剂对照物之间的抗氧化差别,为其综合应用提供科学依据。The antioxidant and free radical scavenging capacity of four kinds of vegetable oils(olive oil,camellia oil,rapeseed oil,soybean oil)were determined by DPPH method,and compared with antioxidant of VE.The results showed that olive oil had the strongest antioxidant activity,followed by camellia oil,soybean oil and rapeseed oil.The antioxidant capacity of 1g VE is equivalent to 140.01 g olive oil,157.73 g camellia oil,297.08 g soybean oil and 382.44 g rapeseed oil respectively.The results show that DPPH method can be used to determine the antioxidant capacity of olive oil,camellia oil,soybean oil and rapeseed oil,and can well reflect the antioxidant differences between the four vegetable oils and antioxidant control substances.The results and method in this paper can provide scientific basis for their comprehensive application.

关 键 词：DPPH 植物油 抗氧化性 吸收光谱 半清除率 

分 类 号：TQ651[化学工程—精细化工]