高酸值鱼油两步法制备鱼油乙酯的研究  

Preparation of Ethyl Esters from high acid value fish oil by two-step process

作　　者：程楠[1] 丁辉[1] 

机构地区：[1]天津大学化工学院,精馏技术国家工程研究中心,天津300072

出　　处：《食品工业科技》2013年第5期275-277,共3页Science and Technology of Food Industry

摘　　要：以高酸值鱼油脂肪酸甘油酯为原料,采用两步法制备鱼油脂肪酸乙酯。先以浓硫酸做催化剂,与乙醇进行预酯化反应;再以KOH做催化剂,进行酯交换反应。通过正交实验得到最优反应条件如下:预酯化反应:反应温度70℃,浓硫酸浓度1.5%,反应时间1h;酯交换反应:反应温度70℃,KOH浓度0.5%,反应时间0.5h。最优实验条件下,乙酯得率为92.5%。Fish oil ethyl esters were prepared by a two-step process using fish oil fatty acid glyceride with high acid value.The first step was sulfuric acid-catalyzed esterification, followed by KOH-catalyzed transesterification.The appropriate process conditions were obtained as follows by the orthogonal test： for esterification, the reaction temperature was 70R,the concentration of sulfuric was1.5%, the reaction time was 1h.For transesterification, the reaction temperature was 70℃, the concentration of KQH was 0.5%, the reaction time was 0.5h.Under the best conditions,the yield of ethyl ester is 92.5%.

关 键 词：高酸值鱼油 鱼油乙酯 预酯化 酯交换 

分 类 号：TS224.6[轻工技术与工程—粮食、油脂及植物蛋白工程]