Identification and characterization of the dominant lactic acid bacteria isolated from traditional fermented milk in Mongolia

• DOI: 10.1007/s12223-010-0040-7
• Publication Date: 2010-06-05T07:15:18Z
• Authors: Z. H. Sun; W. J. Liu; J. C. Zhang; J. Yu; W. Gao; M. Jiri; B. Menghe; T. S. Sun; H. P. Zhang
• Keywords: DNA, Bacterial; Bacteria; Molecular Sequence Data; Mongolia; Sequence Analysis, DNA; 04 agricultural and veterinary sciences; DNA, Ribosomal; Bacterial Typing Techniques; Milk; RNA, Ribosomal, 16S; Animals; Cluster Analysis; Lactic Acid; 0405 other agricultural sciences; Phylogeny

Five samples of Airag and 20 of Tarag (both in Mongolia) were collected from scattered households. One hundred strains of lactic acid bacteria (LAB) were isolated and identified from these samples according to phenotypic characterization and 16S rRNA gene sequence analysis. Eighty-five isolates belonged to the genus Lactobacillus, 15 being classified as coccoid LAB. All isolates belonged to 5 genera and 11 to different species and subspecies. Lactobacillus (Lb.) helveticus was predominant population in Airag samples, Lb. fermentum and Lb. helveticus were the major LAB microflora in Tarag.