METHOD OF MANUFACTURING SULFUR-CONTAINING AMINO ACIDS CONCENTRATE FROM PROTEIN HYDROLYZATE OF KERATIN-CONTAINING RAW MATERIAL Russian patent published in 2009 - IPC A23J1/10 A23J3/24 A23J3/34 

FIELD: agriculture.

SUBSTANCE: method of manufacturing sulfur-containing amino acids concentrate from protein hydrolyzate of keratin-containing raw material involves crushing and pretreating the raw material with sodium sulfite water solution, enzymatic splitting, isolating protein hydrolyzate, drying, prepacking and packing. The obtained protein hydrolyzate is supplied for deep freezing under the temperature of (-25)-(-30)°C for 20-30 minutes, then the temperature of the frozen product is gradually increased up to (-7)°C, the liberated fraction of sulfur-containing amino acids concentrate is collected, the liquid or dried fraction is prepacked and packed.

EFFECT: expanding protein hydrolyzate field of application including feed, cosmetic and food spheres due to the hydrolyzate separation by physical methods and production of sulphur-containing concentrates, enrichment of food and feed rations, cosmetic bases with the concentrates.

2 dwg, 2 tbl, 1 ex