复合凝聚法制备V_E微胶囊工艺的研究  

Study of processing parameters on spherical multinuclear microcapsules of Vitamin E by complex coacervation

作　　者：冯岩[1] 张晓鸣[1] 路宏波[1] 贾承胜[1] 夏书芹[1] 

机构地区：[1]江南大学食品学院,江苏无锡214122

出　　处：《食品与机械》2008年第3期39-43,54,共6页Food and Machinery

基　　金：国家科技支撑计划(项目编号:2006BAD27B04)

摘　　要：采用明胶与阿拉伯胶作为壁材,采用复合凝聚法制备VE多核微胶囊。明胶与阿拉伯胶的添加量之比为1∶1,选用转谷氨酰胺酶作为交联剂,以代替有毒的、不适于食品加工中的化学交联剂;选取壁材浓度(X1)、壁材与芯材添加量之比(X2)及pH值(X3)作为被优化的工艺参数。单因素及响应面分析结果显示,复合凝聚法制备VE微胶囊的最佳工艺条件为壁材浓度1.23%,壁材与芯材添加量之比2.14∶1,pH值4.0,VE微胶囊的最高包埋效率为(92.78±0.65)%。The muhinuclear microcapsules encapsulating Vitamin E were prepared by complex coacervation, which gelatin and gum Arabic were used as the wall materials. The ratio of gelatin/gum Arabic was determined as 1 ： 1. The enzymatic crosslinker （ Transglutaminase ） was applied to substitute chemical cross-linkers, which are highly toxic and unsuitable for the applications of food processing. Response surface methodology （RSM） was used to optimize microencapsulation efficiency including three independent variables： the wall material Concentration （X1）, the wall material/core material ratio （ X2 ）, and the pH value （ X3 ）. The optimal conditions were gotten for the Vitamin E microencapsulation by complex coacervation： wall material concentration 1. 23% （X1）, wall material/core material ratio 2.14 ： 1 （ X2 ） , pH value 4.0 （ X3 ）. The resuiting microencapsulation efficiency（ ME）, with the optimized condition, was ME （92.78±0.65）%.

关 键 词：复合凝聚法 微胶囊 VE 转谷氨酰胺酶 响应面分析 

分 类 号：TQ466.5[化学工程—制药化工]