METHOD OF YEAST ACTIVATION Russian patent published in 2013 - IPC C12N1/18 C12N1/38 B82B1/00 

FIELD: biotechnology.

SUBSTANCE: method of yeast activation comprises administering to a suspension of baker's yeast of solution of nanosole of particles of amorphous silica having a particle size of 6-7 nm, which is diluted before use with distilled water or a physiological NaCl solution in water at a concentration of NaCl 0.9% to a final weight concentration of SiO₂ of 1-1.5%, the solution pH is 5.5-6. For activation, the baker's yeast suspension is used, obtained by introducing the yeast solution at a ratio of yeast: water as 1:6 in an aqueous sugar solution with a sugar concentration of 15%. The yeast and sugar solutions are taken in ratio of 2:1, then the solution of silica nanoparticles is added to the suspension of yeast and sugar in a volume ratio of suspension:solution of nanoparticles as (30-35):1 and stirred. The resulting suspension is heated and exposed at a temperature of 40-45°C.

EFFECT: increased speed of biochemical oxidation of sugar in the baker's yeast suspension, containing nanoparticles of SiO₂, more than 10-15 times.

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