摘要
研究了以嗜酸乳杆菌为心材,海藻酸钠为壁材,复乳法制备益生菌微胶囊的工艺过程和方法。通过正交试验,确定了益生菌微胶囊化的较佳工艺:海藻酸钠浓度2%,乳化时间10min,搅拌速度400rpm,菌胶比例1:6。以该工艺制备的微胶囊具有较好的耐酸性和肠溶性,包封率在59.20%左右。
The technological processes about preparing microcapsulation of LA with complex emulsification method were studied. The sodium alginate was used as shell-material and EA as core-material, the optimal technological conditions of making the microcapsule were determined through orthogonal experiment. The results showed that the optional conditions were as follows: concentration of sodium alginate was 2 %, emulsification time was10 min, stirring speed was 400 rmp, proportion of LA and sodium alginate was 1:6.This method can prepare microcapsules which have good enteric solubility and acid resistance, embedding rate was 59.20 %.
出处
《食品研究与开发》
CAS
北大核心
2006年第1期76-79,共4页
Food Research and Development
关键词
嗜酸乳杆菌
肠溶性
微胶囊
冷冻干燥
Lactobacillus acidophilus
enteric solubility
microcapsules
freeze-drying