超声辅助超临界二氧化碳萃取紫苏籽油的工艺研究  

Study on extraction of perilla frutescens seed oil by ultrasonic assisted supercritical carbon dioxide

作　　者：李玉邯[1] 陈宇飞[1] 杨柳[1] 张一[1] 

机构地区：[1]吉林工商学院食品工程学院,吉林长春130507

出　　处：《粮食与油脂》2016年第12期45-47,共3页Cereals & Oils

基　　金：粮油食品深加工吉林省高校重点实验室科研项目(吉高校重点实验室科合字[2016]第018号);吉林工商学院院级科研项目(吉林工商学院科合字[2016]第016号)

摘　　要：选择乙酸乙酯为夹带剂,通过正交试验确定超声辅助超临界二氧化碳萃取紫苏籽油的最佳工艺条件。最佳工艺为超声时间25 min、超声水浴温度40℃、超声次数2次、萃取温度40℃、萃取时间3 h、萃取压力20 Pa,原料粒度40目。在此试验条件下,紫苏籽的出油率可达43.8%,相同条件下原料不进行超声预处理的紫苏籽出油率为39.7%,超声对原料进行预处理有利于提高紫苏籽油的出油率。Chosen ethyl acetate as an entrainer,the optimum process conditions of ultrasonic pretreatment of Perilla seed were determined by orthogonal experiment. Then,the optimum process conditions of ultrasonic assisted supercritical carbon dioxide were determined by orthogonal experiment. The optimal extraction conditions were as follows：ultrasonic time of 25 min,ultrasonic temperature of 40 ℃,the ultrasonic of 2 times,extraction temperature of 40 oC,the extraction time of 3 h,extraction pressure of 20 Pa,and raw material granularity of 40 mesh. Under the experimental conditions,Perilla seed oil yield efficiency could reach 43.8%. Under the condition of the same material without ultrasonic pretreatment of Perilla seed,the yield efficiency was 39.7%. Ultrasonic for pretreatment of raw materials was conducive to improve the Perilla seed oil yield efficiency.

关 键 词：紫苏籽油 超临界 超声 夹带剂 

分 类 号：TS225.19[轻工技术与工程—粮食、油脂及植物蛋白工程]