离子液体催化大豆油酸解制备中长碳链结构酯  

The Preparation of Medium-and-Long Chain Structure Lipids Through Acidolysis of Soybean Oil Catalyzed by Ionic Liquid

作　　者：柴小超[1] 马传国[1,2] 魏佳丽[1] 刘全亮[1] 殷俊俊[1] 王化林[1] 裴梦雪[1] 

机构地区：[1]河南工业大学粮油食品学院,郑州450001 [2]河南工业大学小麦和玉米深加工国家工程实验室,郑州450001

出　　处：《中国粮油学报》2015年第10期67-73,共7页Journal of the Chinese Cereals and Oils Association

基　　金：河南工业大学研究生教育创新计划(2012YJCX26)

摘　　要：以中碳链脂肪酸(MFCA)和大豆油为原料,酸性离子液体1-甲基-3-羧甲基咪唑硫酸氢盐[AAMIM][HSO4]为催化剂,通过酸解反应制备中长碳链结构酯(MLCT)。在单因素试验基础上结合正交试验最终得到最佳工艺条件为:反应温度为140℃,反应时间为6 h,底物物质的量比为10∶1,催化剂添加量为4%(以底物总量计),中碳链脂肪酸的结合率最大为51.49%。在对辛酸、癸酸选择性试验的基础上得出癸酸与辛酸在酸解反应过程中具有竞争性,且癸酸占有竞争优势。纯化脱酸后产品中MLCT占总质量的72.96%。The products obtaining rich medium - and - long chain structure lipids （LMCT） have been produced by acidolysis of soybean oil ; MCFA catalyzed by acidic ionic liquid [ AAMIM ] [ HSO41. The factors of effect on incorporation rates of MLCT were reaction temperature, reaction time, molar ratio of substrate and the amount of catalyst. Basis on the univariate experiment, an orthogonal test has been conducted in the paper. The orthogonal variance analysis showed that the optional conditions were as following： molar ratio of soybean oil to medium acid chain fatty acid 10： 1, the amount of catalyst 4% （the total amount of the substrate）, reaction time 6 h, reaction temperature 140 ℃. On the condition, the incorporation rate of medium chain fatty acid was 51.49%. In addition, they competed each other in the reaction and the capric was dominant. After purification, the MLCT was 72.96% of the total triglyceride.

关 键 词：离子液体 酸解 中长碳链结构酯 竞争性 

分 类 号：TQ645[化学工程—精细化工] TQ426