甾醇酯微胶囊制备工艺研究  

Research on preparation of sterol ester microcapsules

作　　者：夏辉[1] 刘欣荣[2] 

机构地区：[1]国家粮食储备局西安油脂科学研究设计院,陕西西安710082 [2]西藏民族学院,陕西咸阳712082

出　　处：《粮油食品科技》2012年第1期30-33,共4页Science and Technology of Cereals,Oils and Foods

摘　　要：研究了喷雾干燥法制备微胶囊化甾醇酯的工艺。研究结果表明:微胶囊化甾醇酯的最优乳化条件为:复合乳化剂配比(单甘酯∶蔗糖酯)为1∶9;乳化剂用量0.75%;壁材用量20%;壁材比(变性淀粉∶麦芽糊精)为1∶5;芯材/壁材为0.5。喷雾干燥法制备甾醇酯微胶囊的最佳工艺参数为:进料温度50～60℃、均质压力50 MPa、进风温度180℃、出风温度80℃、喷雾压力180 KPa。在此工艺条件下微胶囊化效率可达77.8%。The preparation of sterol esters microcapsules by spray drying was studied.The result showed that the optimum emulsification conditions of sterol esters microcapsule were the ratio of glycerol monoester to sucrose fatty acid ester 1∶ 9,emulsifier 0.75%,emulsion concentration 20%,the ratio of starch to maltodextrane1∶ 5,and the ratio of sterol esters to wall material was 0.5.The optimal parameters for preparing sterol esters microcapsules by spray drying were feed temperature 50～60 ℃,homogenizing pressure 50 MPa,temperatures of inlet wind and outlet wind 180 ℃ and 80 ℃,spray pressure 180 Kpa.The microencapsulating efficiency was 77.8% at these conditions.

关 键 词：甾醇酯 微胶囊 喷雾干燥 

分 类 号：TS202.1[轻工技术与工程—食品科学]