Bifidobacterium infantis microcapsules and preparation method therefor

The invention belongs to the technical field of biomedicines and particularly discloses bifidobacterium infantis microcapsules and a preparation method therefor. According to the microcapsules, sodiumalginate serves as a main wall material, bifidobacterium infantis serves as a core material, and trehalose serves as a protectant; and the bifidobacterium infantis is encysted through employing a microcapsule technology, so that the microcapsules can have good acid resistance and enteric solubility, contact of the bifidobacterium infantis with outside surroundings is effectively isolated, and thesurvival rate is increased. 本发明属于生物医药技术领域，具体公开了一种婴儿型双歧杆菌微胶囊及其制备方法。所述微胶囊以海藻酸钠作为主要壁材，婴儿型双歧杆菌为芯材，海藻糖为保护剂；通过采用微胶囊技术，将婴儿型双歧杆菌包于囊中，确保微胶囊具有良好耐酸性和肠溶性，有效隔绝婴儿型双歧杆菌与外界环境的接触，提高存活率。