酶法甘油解连续制备甘油二酯的研究  

Continuous enzymatic synthesis of diacylglycerol by glycerolysis

作　　者：华娣[1] 温琦[1] 裘爱泳[1] 蒋蕴珍[1] 

机构地区：[1]国家粮食储备局无锡科学研究设计院,江苏无锡214035

出　　处：《中国油脂》2009年第5期11-13,共3页China Oils and Fats

摘　　要：将甘油、大豆油和6号溶剂充分混合后,通过装有固定化脂肪酶的填充柱反应器,连续进行反应制备甘油二酯。产物经减压蒸馏除去有机溶剂后得到甘油二酯含量大于55%的粗品。将粗品进行二次分子蒸馏纯化,可得到甘油二酯含量93.20%的产品,得率可达到51.80%。该工艺可降低反应体系的黏度,改善反应原料的互溶性,并对酶进行了保护,从而提高了反应效率,延长了酶的使用寿命。Continuous production of diacylglycerol （DAG） by glycerolysis of soybean oil and glycerol in 6# solvent was studied, and the reaction was performed in a packed - bed reactor using an immobilized lipase. After vacuum distillation of the reaction product, the crude DAG with 55% content could be obtained. The crude DAG was treated by molecular distillation twice, the DAG with 93.2% content was obtained, and the yield was 51.80%.

关 键 词：甘油二酯 6号溶剂 填充柱反应器 分子蒸馏 

分 类 号：TQ645[化学工程—精细化工]