FIELD: alcoholic beverage production.
SUBSTANCE: invention provides a method for growing yeast biomass for 12-14 h on ethanol-free medium, which biomass is then mixed with polyvinyl alcohol solution, frozen in air at -15 to -80°C, kept at this temperature for 12-16 h, and unfrozen at +2 to +10°C. Thus obtained immobilized biocatalyst contains yeast mass in amount 0.15-0.90 % (as dry material), 10-15% of polyvinyl alcohol, and water phase to 100%.
EFFECT: enabled multiple fermentation of a wide spectrum of media and enabled elimination of underfermentation of biological acidity reduction in worts.
2 cl, 4 dwg, 2 tbl, 9 ex
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