STRAIN OF BACTERIUM BIFIDOBACTERIUM BIFIDUM N 791/BAG USED FOR PREPARING BIFIDOBACTERIA LIQUID CONCENTRATE, FERMENTED-MILK CURATIVE-DIETETIC FOODSTUFFS AND BIOLOGICALLY ACTIVE ADDITIONS Russian patent published in 2001 - IPC

FIELD: biotechnology, medicinal microbiology. SUBSTANCE: strain Bifidobacterium bifidum N 791/BAG is obtained by selection of the strain B. bifidum N 791. Selection is carried out without use of any chemical and physical mutagens by a long time by turn culturing in two different nutrient media: Blaurock's medium and sterile defatted milk without growth factors for 50 passages by morphocultural criterions. Strain is more resistant to impairment factors of cultured media and aggressive media of human gastroenteric tract, it provides utilization of the more broad spectrum of amino acids, i. e. it shows the more high viability and colonizing properties that provides preparing preparations and foodstuffs on its base with the more long storage time and the more high curative-prophylactic properties. Invention can be used for preparing liquid concentrate of bifidobacteria and fermented- -milk curative-dietetic foodstuffs and bifido-containing bifidobacteria biologically active additions based on liquid concentrate of bifidobacteria. EFFECT: strain of bacterium indicated above, valuable properties. 10 tbl, 7 ex