尿素包合法分离油用牡丹籽油的不饱和脂肪酸工艺优化研究  

Optimization of urea inclusion process for separation of unsaturated fatty acids from peony seed oil

作　　者：董秀婷[1] 杨国恩[1] 王秋敏 陈鹏 张明婉 刘铖 DONG Xiuting;YANG Guo＇en;WANG Qiumin;CHEN Peng;ZHANG Mingwan;LIU Cheng(College of Materials Science and Engineering,Central South University of Forestry and Technology,Changsha 410004,China)

机构地区：[1]中南林业科技大学材料科学与工程学院,长沙410004

出　　处：《中国油脂》2018年第8期39-41,46,共4页China Oils and Fats

基　　金：2017年度湖南省省级大学生研究性学习和创新性实验计划项目(246)

摘　　要：采用正交实验设计对尿素包合法富集牡丹籽油不饱和脂肪酸工艺进行优化。考察了包合反应中尿素与乙醇质量体积比、包合温度、包合时间对产品中α-亚麻酸含量的影响。结果表明:最佳工艺条件为尿素与95%乙醇质量体积比3∶9、包合温度0℃、包合时间15 h,尿素包合后α-亚麻酸含量达64.95%。尿素包合法可有效地富集牡丹籽油中的不饱和脂肪酸,并且可以提高α-亚麻酸的含量。Orthogonal experimental design was used to optimize the unsaturated tatty acid enrichment ot peony seed oil by urea inclusion method. The effects of urea - ethanol ratio, inclusion temperature and inclusion time on the α - linolenic acid content were investigated. The results showed that the optimal process conditions were obtained as follows ： urea - 95 % ethanol ratio 3： 9, inclusion temperature 0℃ and inclusion time 15 h. Under these conditions, the content of α - linolenic acid reached 64.95%. The ure- a inclusion method could effectively extract unsaturated fatty acids from peony seed oil, and increase the content of α- linolenic acid.

关 键 词：牡丹籽油 尿素包合法 Α-亚麻酸 气相色谱法 

分 类 号：TS225.1[轻工技术与工程—粮食、油脂及植物蛋白工程] TS201.1[轻工技术与工程—食品科学与工程]