超临界CO_2流体萃取琉璃苣籽油及其脂肪酸分析  

Supercritical CO_2 fluid extraction of borage seed oil and its fatty acid composition analysis

作　　者：任飞[1,2] 韩发[1] 石丽娜[1,2] 皮立[1] 胡凤祖[1] 周同永[1,2] 程大志[1] 

机构地区：[1]中国科学院西北高原生物研究所,西宁810001 [2]中国科学院研究生院,北京100049

出　　处：《中国油脂》2010年第8期15-18,共4页China Oils and Fats

摘　　要：利用超临界CO2流体萃取技术萃取琉璃苣籽油,考察了萃取压力、萃取温度、萃取时间和CO2流量对琉璃苣籽油出油率的影响,并通过正交试验确定了超临界CO2萃取琉璃苣籽油的最佳工艺条件。研究结果表明,超临界CO2萃取琉璃苣籽油的最佳工艺条件为:萃取压力25 MPa,萃取温度45℃,萃取时间2.5 h,CO2流量45 L/h。在此条件下,出油率为28.08%。气相色谱对琉璃苣籽油的脂肪酸组成分析表明,琉璃苣籽油富含油酸、亚油酸和γ-亚麻酸。The borage seed oil was extracted by supercritical CO2 fluid,and the effects of extraction pressure,temperature,time and CO2 flow rate on the oil yield extraction were studied.The optimal conditions were determined by orthogonal test as follows：extraction pressure 25 MPa,temperature 45℃,time 2.5 h and CO2 flow rate 45 L/h.Under the optimal conditions,the oil yield was 28.08%.The composition of the seed oil was analyzed by GC-MS,and the main fatty acids were oleic acid,linoleic acid and γ-linolenic acid.

关 键 词：超临界CO2流体萃取 琉璃苣籽油 脂肪酸组成 

分 类 号：TS225.1[轻工技术与工程—粮食、油脂及植物蛋白工程]