娑罗子油超临界CO_2萃取工艺研究及其成分分析_陈光宇 . Supercritical CO2 Extraction and Component Analysis of Aesculus wilsonii Seed Oil

Abstract

Objective:To research the optimal extraction process of supercritical CO2 extraction and analyze the component of the oil extracted from Aesculus wilsonii seed.Methods: Using the yield of Aesculus wilsonii seed oil as the index,optimized supercritical CO2 extraction parameter by orthogonal experiment methodology and analysed the compounds of Aesculus wilsonii seed oil by GC-MS.Results: The optimal parameters of the supercritical CO2 extraction of the oil extracted from Aesculus wilsoniit seed were determined: the extraction pressure was 28 MPa and the temperature was 38 ℃,the separationⅠ pressure was 12 MPa and the temperature was 40 ℃,the separationⅡ pressure was 5 MPa and the temperature was 40 ℃,the extraction time was 110 min.The average extraction rate of Aesculus wilsonii seed oil was 1.264%.26 kinds of compounds were identified by GC-MS in Aesculus wilsonii seed oil extracted by supercritical CO2.The main components were fatty acids.Conclusion:Comparing with the petroleum ether extraction,the supercritical CO2 extraction has higher extraction rate,shorter extraction time,more clarity oil.The kinds of fatty acids with high amounts in Aesculus wilsonii seed oil is identical in general,the kinds of fatty acids with low amounts in Aesculus wilsonii seed oil have differences.