Analysis of the microflora in Tibetan kefir grains using denaturing gradient gel electrophoresis.

Abstract:

:The microflora of Tibetan kefir grains was investigated by culture- independent methods. Denaturing gradient gel electrophoresis (DGGE) of partially amplified 16S rRNA for bacteria and 26S rRNA for yeasts, followed by sequencing of the most intense bands, showed that the dominant microorganisms were Pseudomonas sp., Leuconostoc mesenteroides, Lactobacillus helveticus, Lactobacillus kefiranofaciens, Lactococcus lactis, Lactobacillus kefiri, Lactobacillus casei, Kazachstania unispora, Kluyveromyces marxianus, Saccharomyces cerevisiae, and Kazachstania exigua. The bacterial communities between three kinds of Tibetan kefir grains showed 78-84% similarity, and yeasts 80-92%. The microflora is held together in the matrix of fibrillar material composed largely of a water-insoluble polysaccharide.

journal_name

Food Microbiol

journal_title

Food microbiology

authors

Zhou J,Liu X,Jiang H,Dong M

doi

10.1016/j.fm.2009.04.009

subject

Has Abstract

pub_date

2009-12-01 00:00:00

pages

770-5

issue

8

eissn

0740-0020

issn

1095-9998

pii

S0740-0020(09)00098-7

journal_volume

26

pub_type

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