紫茉莉籽油的提取及其脂肪酸组成分析_李丕高 . Extraction of four-o'clock seed oil and its fatty acid composition

Abstract

The solvent extraction of four-o'clock seed oil was performed by a single factor test,and better process conditions were determined.The physicochemical properties and fatty acid composition of four-o'clock seed oil were analyzed.The results showed that the optimal conditions were as follows:petroleum ether(boiling range from 60 ℃ to 90℃),ratio of stuff to solvent 1∶6,extraction temperature 90℃,extraction time 6 h.Under the optimal conditions the extraction rate of crude oil was 11.70%.The four-o'clock seed oil is a health vegetable oil,in which the content of stearic acid is 1.74%,total unsaturated fatty acids is 83.46% and linolenic acid is 17.87%.