食品工业科技Issue(10)：337-340,4.
超临界体系酶法催化甘油解制备甘油二酯的研究
Study on enzymatic synthesis of diacylglycerol by glycerolysis in supercritical system
摘要
Abstract
The preparation of DG by enzymatic glycerolysis in the CO2 supercritical system was studied. The effect of substrate soybean oil/glycerin molar ratio,temperature,amount of enzyme,water content of glycerol, time and stirring speed on the preparation of DG were studied. Through the single factor and orthogonal tests, the optimum conditions were determined as follows： ubstrate molar ratio 2：1, temperature 65℃, amount of enzyme 2.5%,water content of glycerol 1%, time 7h, stirring speed 120r/min. The product content of DG were 70.2% ,of which 1,3-DG were 56.2%. Compared with the conventional glycerolysis,the content of DG were much more than 7%, of which 1,3-DG were much more than 5%,and time reduced about two hours.关键词
大豆油/甘油解/脂肪酶/Lipozyme/RM^IM/CO2超临界/甘油二酯Key words
soybean oil/glycerolysis/lipase Lipozyme RM^IM/CO2 supercritical/diacylglycerol分类
轻工纺织引用本文复制引用
任运宏,孙博,刘晶,江连洲,于殿宇..超临界体系酶法催化甘油解制备甘油二酯的研究[J].食品工业科技,2011,(10):337-340,4.基金项目
基金项目：国家863高技术研究发展计划（2010AA101503）. （）
