Diversified comparison of lactic acid bacteria from traditional dairy products in Mongolian and Kazakh in Xinjiang

The traditional fermented dairy product- yogurt is a kind of indispensable food for Ethnic Minorities in Xinjiang.In order to investigate the difference of strains of lactobacillus from traditional dairy products in various nationalities in the same region, 17 strains of Kazak yogurt and 8 strains of Mongolian yogurt were collected from Hebuksaier county in Xinjiang and 42 strains of lactobacillus was isolated by traditional method and 16S rDNA gene sequence analysis method, 30 strains of them were isolated from Kazak samples, the other 12 strains were isolated from Mongolian samples.The dominant bacterial community was P. acidilactici. Except P. acidilactici, Lb. plantarum and E.durans were isolated from both of the two samples.The Kazakh sample was also isolate Lb.fermentum、Lb.paracasei and Lb.crustorum.One strain of W.cibaria was isolated from Mongolian samples.