A medium for the isolation of capsular bacteria from kefir grains.

The micro flora of kefir grains have been studied by manyauthors1~n): They showed that the grains have a complex flora consisting of yeasts and lactic acid bacteria.1 ~n) The microorganisms are held together in slimy embedding materials.1'3'10'12^5* La Riviere et al.2) and Ottogalli et al.3) showed that almost half of the embedding materials were a polysaccharide named kefiran. Capsular bacteria are assumed to be responsible for polysaccharide