超临界CO2萃取柚子种子油及脂肪酸的气相色谱分析GC . Extraction of Grapefruit Seed Oil with Supercritical Carbon Dioxide and Analysis of the Fatty Acids Using GC

Abstract

Seed oil of grapefruit was obtained by supercritical carbon oxide extraction.The influence of pressure,temperature and time on the extraction of grapefruit seed oil was studied.With the pressure of 35 MPa,temperature 45℃,and dynamic extraction time of 150 min,the extraction efficiency of seed oil was 44.58%.And the fatty acids in the extracting oil were analysed using GC.The results showed that the oil contained abundant unsaturated fatty acids,among which the contents of linolenic acid,linoleic acid and oleic acid were 4.40%,34.56% and 27.19%,respectively.This result provided the fundamental data for the further development of Grapefruit seed.