There were 80 straim of bacterias isolated from traditional fermented milk in Inner Mongolia of China with anaerobic cultured in MRSA. Among 80 strains, 43 strains of Lactobacilli were proved with G+, H2O2 test with positive, using ribose, growing at 15 ℃ and 37 ℃.And 43 strains of Lactobacilli were assessed for for their survivability, 14 strains turned out to be acid resistance and bile salt tolerance. LAB spcies of 2 strains were identified and named Lactobacillus paracase N1115 and Lactobadllus plantarum.%对MRS培养基进行了厌氧培养,从内蒙古传统发酵乳制品中分离了80株菌,通过镜检、过氧化氢实验、发酵核糖、15℃和37℃发酵试验,获得了43株乳杆菌.结果表明,14株菌具有一定的耐酸和耐胆盐特性;其中2株鉴定为副干酪乳杆菌和植物乳杆菌,分别命名为Lactobacillus paracasei N1115和Lactobacillus plantarum N3114.
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