文献类型：期刊文献

中文题名：茶油脱臭馏出物中甾醇精制的研究

英文题名：Study on the phytosterol extraction from oil-tea camellia seed oil deodorization distillate

作者：刘存存[1,2] 方学智[1] 李宝才[2] 王开良[1] 姚小华[1]

第一作者：刘存存

机构：[1]中国林业科学研究院亚热带林业研究所;[2]昆明理工大学生命科学与技术学院

年份：2012

期号：2

起止页码：250-253

中文期刊名：食品工业科技

外文期刊名：Science and Technology of Food Industry

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

基金：林业行业公益专项(2007-4-36);浙江省重点项目(2007C12G3030003)

语种：中文

中文关键词：茶油;脱臭馏出物;VE;萃取;皂化;植物甾醇;重结晶

外文关键词：oil-tea camellia seed oil ; deodorization distillate ;VE ; extraction ; saponification; phytosterol ; recrystallization

分类号：TS225

摘要：采用乙醇萃取VE,皂化法提取茶油脱臭馏出物中甾醇化合物,以正己烷为结晶溶剂对甾醇化合物进行重结晶。VE最佳萃取参数:液料比3:1,搅拌时间30min,萃取温度55℃,搅拌速度80r/min。甾醇最佳的提取工艺条件:碱料比1(KOH):5,醇料比15(乙醇):1,皂化时间3h,温度85℃;最佳结晶工艺条件:液料比3:1,溶剂正己烷,结晶温度-2℃,结晶时间24h,三次重结晶后精制甾醇的纯度可以达到89.3%。
Extracted VE from oil-tea camellia seed oil deodorization distillate by alcohol and gained phytosterols by saponification,the phytosterols were dissolved in n-hexane to recrystallize.The optimal conditions extraction of VE were liquor-raw material ratio 3： 1, back flow extract 30min, extraction temperature 55%, rate 80r/min.The optimal conditions extraction of phytosterol were as following.potassium hydroxide-raw material ratio 1 ：.5, ethanol-raw material ratio 15：1 ,and back flow saponified 3h under 85~C.The optimal crystallization conditions were as following= n-hexane- raw material ratio 3：1, temperature-2℃, time 24h, the refined phytosterols with 89.3% purity were obtained by three recrystallizations.