嗜酸乳杆菌的微胶囊化研究

STUDY ON THE MICROCAPSULATION OF LA

研究了将益生菌、高效活菌保护剂和益生原一起作为核心物质,采用乳化法制备耐酸肠溶益生菌微胶囊的工艺过程。实验结果表明:加入40g/L玉米淀粉,150mL/L甘油,60g/L菊粉可显著提高微囊嗜酸乳杆菌冻干活菌数,其活菌数最高可达到2.2×1011,较之对照提高了近3个数量级。

The technological processes about preparing microcapsulation of LA with complex emulsification method were studied. LA, high efficient protectant that used protect cell, inulin were used as core-material. The results showed that the optimal conditions were as follows： 40 g/L cornstarch, 150 mL/L glycerol and 60 g/L inulin. The modified method increased the survival of bacteria by 1000-fold as compared to when cultures were encapsulated with alginate alone. Method can prepare microcapsules that have good enteric solubility and acid resistance, viable bacteria can increase to 2.2 × 10^11.