由于自由基引发的氧化作用已被证实与多种疾病有关,具有抗氧化活性的食品倍受瞩目。本文将汉中地区的油菜花瓣用乙醚经索氏提取脱脂后,用95%的乙醇提取抗氧化物质,采用DPPH.法测定提取液和脱得脂类的抗氧化活性,并同2,6-二叔丁基-4-甲基苯酚(BHT)进行比较。结果表明:它们都具抗氧化活性,但所得脂类对自由基的清除能力稍强。 Since free radical-induced oxidation has been shown to be associated with a variety of diseases, foods with antioxidant activity have drawn much attention. In this paper, the rapeseed petals in Hanzhong area were degreased with soxhlet extracted with ether and the antioxidants were extracted with 95% ethanol. The antioxidant activities of extracts and decapsulated lipids were determined by DPPH. Tert-butyl-4-methylphenol (BHT). The results showed that all of them have antioxidant activity, but the resulting lipids have a slightly stronger ability to scavenge free radicals.