METHOD OF PREPARING BACTERIAL FERMENT FOR FERMENTED-MILK PRODUCT Russian patent published in 2001 - IPC

FIELD: food industry. SUBSTANCE: invention relates to methods of preparing bacterial ferments for production of fermented-milk products using lactic acid bacteria. Method of preparing bacterial ferment for fermented-milk product involves preparing the nutrient medium based on enzymatic hydrolyzate of protein component, seeding bifidobacteria and/or lactobacillum bacteria, and/or lactic acid streptococci on sterile nutrient medium and their culturing. Soybean milk is used as the source of the protein component for hydrolyzate preparing and pepsin is used as an enzyme. Hydrolysis is carried out at pH = 1.5-4.5 for 4 h. Process of hydrolysis of soybean milk does not require the constant control over pH medium. Method provides increase titer value of viable cultures to 10²⁰. Antagonistic activity of ferment with respect to pathogenic and opportunistic intestine microflora is increased. Ferment storage time is increased to 30 days. EFFECT: simplified method, broadened raw base, enhanced curative properties of ferment. 2 tbl, 1 ex