PRODUCTION METHOD OF FEEDING YEAST Russian patent published in 2012 - IPC A23K1/12 A23K1/16 

FIELD: agriculture, microbiological and hydrolysis industry.

SUBSTANCE: this invention covers manufacturing methods of feeding yeast from hydrolyzates produced from processing of livestock breeding complex wastes. Preliminary fine-cut livestock manure with sawdust supplement or manure bedding with high contents of straw is used as a raw material. Raw material undergoes hydrolysis by sulphuric acid with further heat treatment. Then hydrolyzate is inversed, neutralized and purified. Fine-cut sea-buckthorn sprat is added to the purified and neutralized hydrolyzate received, and then the latter is aerated. Liquid phase is separated from the solid phase. Nutrient salts and yeast are added to the liquid phase; then yeast is raised; the liquid phase is floated, separated and dried. Nutrient salts and yeast are added to the solid phase; then yeast is raised; the solid phase is flotaed, separated and dried. Feeding yeast received undergoes ultraviolet radiation after separation during yeast raising at the liquid phase, and after drying during yeast raising at the solid phase.

EFFECT: increase of quality and yeast crop; increase of D₂ vitamin contents in the finished product.

1 dwg, 1 tbl, 2 ex