超声波强化油茶籽油油脚中甾醇的提取研究  

Extraction of sterols from oil sediment of camellia seed oil assisted by ultrasonic wave

作　　者：汤锦程[1] 钟鑫[1] 吴雪辉[1] 马雨曦[1] 黎道铭[1] 卢颖敏[1] 

机构地区：[1]华南农业大学食品学院,广州510642

出　　处：《中国油脂》2011年第10期70-73,共4页China Oils and Fats

基　　金：广东省科技计划项目(2009B030802043);国家特色专业建设点项目(TS1Z089);华南农业大学科技创新活动项目

摘　　要：以油茶籽油油脚为原料,采用干式皂化、超声波强化无水乙醇提取甾醇,探讨了各因素对提取甾醇得率的影响。通过正交试验确定的最佳提取条件为:油脚与氢氧化钙的质量比1∶1,料液比1∶80(提取剂为无水乙醇),超声波频率28 kHz,超声波功率320 W,超声波处理时间30 min。此条件下提取甾醇得率达1.52%。超声波对甾醇的提取有很好的辅助作用,可缩短提取时间。Sterols was prepared from sediment of camellia seed oil by the means of dry - type saponification and absolute alcohol extraction assisted by ultrasonic wave. The results of orthogonal test indicated that the optimal conditions were ： mass ratio of oil sediment to calcium hydroxide 1 ： 1, ratio of material to liquid 1 ： 80 （ extractant alcohol）, ultrasonic frequency 28 kHz, ultrasonic power 320 W, ultrasonic time 30 min. Under the optimal conditions, the yield of sterols was 1.52%. There was a marked assistance effect on extraction of sterols by ultrasonic wave, and the time of extraction was declined.

关 键 词：油茶籽油油脚 甾醇 提取 超声波 

分 类 号：TQ645.98[化学工程—精细化工]