甘草提取物对精炼植物油抗氧化作用研究

Study on antioxidative effect of licorice extract on refined vegetable oil

通过采用Rancimat法、Schaal烘箱加速氧化法和煎炸性能试验研究甘草提取物对精炼植物油(大豆油、菜籽油、棕榈油)的抗氧化作用,并同时与人工抗氧化剂特丁基对苯二酚(tertiary butyl hydroquinone,TBHQ)和天然抗氧化剂维生素E进行对比。结果表明:甘草提取物对大豆油、菜籽油、棕榈油都具有一定的抗氧化作用,3种抗氧化剂的抗氧化效果由强到弱的排序为TBHQ>甘草提取物>维生素E。

The antioxidative effect of licorice extract on refined vegetable oil(soybean oil,rapeseed oil and palm oil) was studied by using Rancimat method,Schaal oven accelerated oxidation method and frying performance test,and compared with artificial antioxidant tertiary butyl hydroquinone(TBHQ) and natural antioxidant vitamin E.The results showed that licoric extract had certain antioxidant effect on soybean oil,rapeseed oil and palm oil.The order of antioxidant effect of three antioxidants from strong to weak was TBHQ >licoric extract > vitamin E.