鱼油精炼副产物中EPA和DHA的回收工艺研究  

Study on Recovering EPA and DHA from Fish Oil By-Product

作　　者：方旭波[1] 蒋雅美[1] 龚戬芳[1] 陈小娥[1] 黄海华 王庆和 李振达 

机构地区：[1]浙江海洋学院食品与药学学院,舟山316000 [2]浙江神舟海洋生物工程有限公司,舟山316000 [3]宁波洛祥药业有限公司,宁波315000

出　　处：《中国粮油学报》2012年第11期58-62,共5页Journal of the Chinese Cereals and Oils Association

基　　金：浙江省自然科学基金(Y12C200016);浙江省科技计划(2009C14020;2011C22023);舟山市科技计划(10247)

摘　　要：以鱼油精炼副产物的皂脚和固脂为原料,采用酸催化乙酯工艺回收皂脚、碱催化乙酯工艺回收固脂,结果表明:酸催化回收皂脚时无水乙醇/脂肪酸为0.8 mL/g,硫酸/脂肪酸为0.09 mL/g,78℃下反应4 h,鱼油乙酯化得率达到97%;碱催化回收固脂时无水乙醇用量0.6 mL/g,NaOH用量3%,78℃下反应3 h,鱼油乙酯化得率达到94.5%。以酸、碱催化得到的乙酯化鱼油为原料,分别经二次三级分子蒸馏和一次尿素包合,产品中EPA、DHA的总质量分数分别可达到78.42%和76.15%。Fish oil refining by - product of soap stock and solid lipid was used as the raw material, and the processes used were acid -catalyzed ester recovery process soap, and solid base -catalyzed ester resin recovery process. The results showed that when the acid - catalyzed recycling soap ethanol consumption 0.8 mL/g, sulfuric acid concentration of 0.09 mL/g, and at 79 ℃ for 4 h, the fish oil ethyl ester rate is 97%. Recovery of solid lipid when the base - catalyzed ethanol consumption 0.6 mL/g, NaOH concentration of 3 %, and at 79 ℃ for 3 h, the esterification rate of fish oil is up to 94.5 %. The acid - base catalyst with ethyl ester fish oil is used as raw material, a second three level and urea inclusion can produce EPA and DHA content of up to 78.42% and 76.15% respectively.

关 键 词：鱼油 副产物 酸催化 碱催化 

分 类 号：TS225.2[轻工技术与工程—粮食、油脂及植物蛋白工程]