维生素E-大豆蛋白微胶囊的制备及特性分析  

Preparation and properties of vitamin E-soybean protein microcapsules

作　　者：殷琦 郑志 姜绍通 赵妍嫣 YIN Qi;ZHENG Zhi;JIANG Shaotong;ZHAO Yanyan(School of Food and Biological Engineering,Hefei University of Technology,Hefei 230601,China;Anhui Province Key Laboratory of Agricultural Products Modern Processing,Hefei 230601,China)

机构地区：[1]合肥工业大学食品与生物工程学院,合肥230601 [2]农产品现代加工安徽省重点实验室,合肥230601

出　　处：《中国油脂》2024年第5期60-65,共6页China Oils and Fats

基　　金：安徽省重大科技计划项目(202103b06020009)。

摘　　要：为生产包封效率高、稳定性好的维生素E微胶囊产品,以大豆分离蛋白/硫酸葡聚糖复合颗粒或大豆分离蛋白与麦芽糊精作为复合壁材,大豆油和维生素E为芯材,通过冷冻干燥法制备维生素E-大豆蛋白微胶囊,通过对微胶囊包封效率、粒径、傅里叶红外光谱(FT-IR)、水分含量、润湿性、溶解度、吸湿性、堆积密度、振实密度、流动性、内聚性等理化性质的探究,考察壁材组成对微胶囊特性的影响。结果表明:壁材组成对微胶囊的理化性质具有显著影响;微胶囊最佳壁材组成为大豆分离蛋白/硫酸葡聚糖复合颗粒含量4 g/100 mL(以乳液体积计)和麦芽糊精含量12 g/100 mL(以乳液体积计),在此条件下微胶囊的包封效率为89.31%,粒径为1.39μm,且颗粒较为均一,水分含量较低,润湿性较低,溶解度较高,吸湿性较小,流动性较差,内聚性较强。综上,以大豆分离蛋白/硫酸葡聚糖复合颗粒和麦芽糊精作为复合壁材制备的维生素E-大豆蛋白微胶囊包封效率高,粉末特性好。In order to produce vitamin E microcapsules with high encapsulation efficiency and good stability,vitamin E-soybean protein microcapsules were prepared by freeze-drying method with soybean protein isolate(SPI)/dextran sulfate composite granules or SPI and maltodextrin as composite wall materials,soybean oil and vitamin E as core materials.The effects of wall composition on microcapsule properties were investigated by exploring encapsulation efficiency,particle size,FT-IR,moisture content,wettability,solubility,hygroscopicity,bulk density,solidification density,flowability and cohesion of microcapsules.The results showed that the wall composition had a significant effect on the physicochemical properties of microcapsules.The optimal wall composition of microcapsules was 4 g/100 mL SPI/dextran sulfate composite granules(in terms of emulsion volume)and 12 g/100 mL maltodextrin(in terms of emulsion volume).Under these conditions,the encapsulation efficiency of microcapsules was 89.31%,the particle size was 1.39μm,and the particles were more homogeneous,with lower moisture content,lower wettability,higher solubility,lower hygroscopicity,poorer flowability as well as higher cohesion.In conclusion,the vitamin E-soybean protein microcapsules prepared with SPI/dextran sulfate composite granules and maltodextrin as the composite wall material shows high encapsulation efficiency and good powder characteristics.

关 键 词：大豆分离蛋白 硫酸葡聚糖 复合壁材 维生素E 微胶囊 

分 类 号：TS201[轻工技术与工程—食品科学] TS207.3[轻工技术与工程—食品科学与工程]