玉米胚芽油的超临界CO_2萃取  

Extraction of Corn Oil with Supercritical Carbon Dioxide

作　　者：程霜[1] 崔庆新[2] 冯泽静[2] 

机构地区：[1]聊城师范学院分析化学研究所,聊城252059 [2]聊城师范学院食品工程系,252059

出　　处：《中国粮油学报》2000年第6期29-33,共5页Journal of the Chinese Cereals and Oils Association

摘　　要：研究了超临界CO2 流体萃取玉米胚芽油的条件 ,着重研究了萃取压力、温度、萃取时间和CO2 流量对油脂萃取率的影响 ,优化了萃取工艺条件 ;萃取压力 35Mpa ,温度 50℃ ,时间 3h ,CO2 流量 34kg/h ,并利用GC/MS分析了最佳条件下萃取的玉米胚芽油成分组成。并比较了超临界CO2The extraction technology of corn oil with supercritical carbon dioxide(SC-CO 2) was studied.The effects of extraction pressure,temperature,time and SC-CO 2 flow on the extraction rate were investigated.The optimum extraction pressure,temperature,time and SC-CO 2 flow for the maximum extraction rate were 35MPa,50℃,3h and 34kg/h respectively.The components of the corn oil was determined by GC/MSD, and the physical and chemical properties of the corn oil were analyzed.The results showed that the product extracted with SC-CO 2 was superior to that with ether.

关 键 词：超临界萃取 玉米胚芽油 优化 工艺条件 超临界CO2 压力 温度 萃取率 

分 类 号：TS224.4[轻工技术与工程—粮食、油脂及植物蛋白工程] TS225.19[轻工技术与工程—食品科学与工程]