不同品种杏仁油的脂肪酸组成分析及抗氧化稳定性研究_刘宁 . Analysis of fatty acid composition and research on anti-oxidation stability of different kind of apricot (Prunus armeniaca L. ) kernel oil

Abstract

The fatty acid compositions of the bitter apricot(Prunus armeniaca L.)kernel oil from northern Shaanxi and little white apricot kernel oil from Xinjiang were analyzed by gas chromatography.The results showed that the two kind of apricot kernel oil contained plenty of unsaturated fatty acid,and the total amount of unsaturated fatty acid was as high as 95%.The effects of temperature,ray and several antioxidants on the anti-oxidation of apricot kernel oil were studied by Schall experiment according to peroxide value(POV).The results showed that anti-oxidation of the oil was affected by temperature and ray greatly,and the effect of temperature was greater.The anti-oxidation of little white apricot kernel oil was superior to bitter apricot kernel oil.TBHQ had more effective anti-oxidation than other antioxidants.What's more,ascorbic acid and citric acid could improve anti-oxidation.VE and PG had not significant anti-oxidation on both kind of apricot kernel oil.