FIELD: food industry.
SUBSTANCE: inventions group relates to biotechnology and may be used for preparing bacterial preparations applicable as probiotic biologically active additives. The bacterial concentrate production method envisages preparation of a nutritional medium, sterilisation and cooling. Inoculum introduction, cell propagation, bacterial mass separation from culture liquid, dispensing and closuring. Into the nutritional medium composition one introduces cedar or linseed oil of fish or ringed seal fat in an amount of 1-1.5% of the medium weight; the inoculum is represented by a Bifidobacterium longum DK-100 strain. The produced bacterial concentrate is used as a probiotic biologically active food additive.
EFFECT: inventions group allows to recover the digestive tract microflora.
2 cl, 3 tbl, 3 dwg, 5 ex
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