超临界CO_2流体萃取林蛙卵油的工艺研究

Research on the Optimal Working Parameters in the Extraction of Ovum Oil of Rana temporaria chensinensis David with Supercritical CO_2 Fluid

根据超临界流体萃取的基本原理,分析了超临界CO2流体萃取林蛙卵油的主要因素,探讨了萃取压力、温度、时间、CO2流量及水分含量对萃取得率的影响。通过正交实验和单因素试验,研究了萃取得率与各因素之间的关系,并得到了最佳萃取工艺:萃取压力35MPa、萃取温度40℃、萃取时间2.0h,林蛙卵水分含量应低于10%。

Based on the foundational principle of extraction with supercritical fluid, this paper ascertained the principal factors affecting the extraction of the ovum oil of Rana temporaria chensinensis David with supercritical CO_2 fluid.These were extracting pressure,extracting temperature,extracting period,CO_2 flow rate and water content of the ovum.The working parameters were gained by orthogonal extracting experiments and single factor tests.These were 35MPa of extracting pressure,40℃ of extracting temperature,2 hours of extracting period,the Water content of the ovum is ought to be low 10%.