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

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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.

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colony forming units


meso-2,6-diaminopimelic acid


de Man-Rogosa-Sharpe (agar)


hexadecyltrimethylammonium bromide


lactic acid bacteria


potato dextrose agar














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Correspondence to H. P. Zhang.

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Sun, Z.H., Liu, W.J., Zhang, J.C. et al. Identification and characterization of the dominant lactic acid bacteria isolated from traditional fermented milk in Mongolia. Folia Microbiol 55, 270–276 (2010).

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