玉米胚芽油的超临界CO_2萃取

Extraction of Corn Oil with Supercritical Carbon Dioxide

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CO2

The 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.