1.Identification and Screening of Acid-tolerant LAB from Nomad Yogurt in Gobi Region of Mongolia
Xiao-Hua DU ; AIRIDENGCAICIKE ; Li LI ; Wei-Hong WANG ; Yan-Bin ZHANG ; Li-Min CUI ; Jie YU ; Jia-Chao ZHANG ; Wen-Jun LIU ; Zhihong SUN ; Tiansong SUN ; Heping ZHANG ; Menghe Bilige
Microbiology 2008;0(07):-
45 strains of Lactobacillus were isolated from 17 samples of traditional fermented milk in Gobi region of Mongolia. Based on morphological, physiological, biochemistry test and 16S rDNA sequencing analysis, identified as 31 strains of Lactobacillus fermentum(L. fermentum), 12 strains of L. helveticus, one strain of L. plantarum and one strain of L. casei. Survival rate of IMAU20085 is 81.44% in the screening experiment of resistance to the artificial gastric juice (pH 3.0). The isolation and identification of these strains and the screening of high acid-tolerant strains have important meaning to the preservation and exploitation of probiotic resource.
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