千年桐种子油提取工艺研究及其主要脂肪酸成分分析_薛宝金 . Extraction of Aleurites montana Seed Oil and Analysis of Its Fatty Acids

Abstract

Aleurites montana oil was extracted using three different solvents of chloroform,petroleum ether,and hexane-isopropanol(3 ∶2,v/v)The results showed chloroform was the most efficient solvent.The effects of extraction time and solvent volume on the seed oil yield were studied.The maximum oil yield(37%) was achieved with a ratio 12 ∶1(v/w) of chloroform to seed kernel for 6 h extraction time.After transesterification of the seed oil,its major fatty acid composition was analyzed by GC-MS.The total fatty acids content was up to 90.55%,including 3.87% palmitic acid,4.11% stearic acid,12.15% linoleic acid,13.31% oleic acid,12.09% linolenic acid,51.20% conjugated linolenic acid,and 3.30% EPA(eicosapentaenoic acid).Aleurites montana oil was an excellent drying oil that is rich in unsaturated fatty acids.