棕榈树种仁油的超临界CO_2流体萃取及GC_MS分析_刘世彪 . Supercritical CO2 Fluid Extraction of Trachycarpus fortunei Seed Oil and GC-MS Analysis

Abstract

The seed oil of palm(Trachycarpus fortunei) harvested from two sampling places of West Hunan province was extracted by supercritical CO2 fluit extraction technology,and its components was analyzed by GC-MS.The results showed that the optimal process conditions are as follows:extraction pressure 30 MPa,temperature 45 ℃,and time 2 h.The oil yield is 14.6% under the above conditions.According to GC-MS results,there are eight and seven kinds of fatty acid in Trachycarpus fortunei seed oil from the two sampling places,respectively.The common components of the two seed oils are 10,13-octadecadienoic acid(36.58%),(z)-9-octadecenoic acid(29.93%),hexadecanoic acid(13.22%),dodecanoic acid(8.74%),methyl tetradecanoate(6.62%),octade-canoic acid(2.63%) and(z)-9-hexadecenoic acid(1.28%).Trachycarpus fortunei seed oil contains abundant unsaturated fatty acids,which can be used as edible oil and industrial oil after refinement.