STRAIN OF LACTOBACILLUS MICROORGANISM LACTOBACILLUS BULGARICUS CNCM 1-1968 DEVOID β-GALACTOSIDASE ACTIVITY, FERMENT COMPRISING INDICATED STRAIN FOR PREPARING FERMENTED-MILK PRODUCT, FERMENTED-MILK PRODUCT AND METHOD FOR IT PREPARING Russian patent published in 2004 - IPC

FIELD: biotechnology, microbiology.

SUBSTANCE: invention can be used for preparing fermented-milk foodstuffs. The strain L. bulgaricus, CNCM 1-1968, carries nonsence mutation in at least one of sequences encoding lactose operon and this strain has no β-galactosidase activity. Method involves preparing the ferment for lactobacillus fermentation including above indicated strain and used for preparing fermented-mild foodstuffs where glucose is added. Yoghurt is preferable such foodstuffs. Invention provides low secondary souring product and retaining cell population and their high surviving.

EFFECT: improved preparing method, valuable properties of strain and ferment.

7 cl, 4 tbl, 3 ex