FIELD: biotechnology; medicine.
SUBSTANCE: method has been proposed for selecting indigenous strains of human intestinal bifidobacteria for their inclusion in probiotic preparations. The method involves preliminary obtaining isolates of these bacteria. The selection of bacteria is carried out by assessing their persistent properties, namely antilysozyme activity and biofilm-forming ability. Bacteria are selected with an antilysozyme activity value greater than 1.5 μg/ml⋅of OP450 and biofilm formation over 0.35 units of OP630.
EFFECT: indigenous strains of bifidobacteria, selected by the proposed method, are characterized by a high level of viable cells in the human intestine.
1 cl, 3 tbl, 1 ex
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