METHOD OF PRODUCTION OF THE PROTEIN HYDROLYZATE Russian patent published in 2006 - IPC C14C1/00 C08H1/06 C12S3/00 A23J1/10 

FIELD: tanning industry; medicine; methods of production of the protein hydrolyzate.

SUBSTANCE: the invention is pertaining to the field of tanning industry, in particular, to the method of production of the protein hydrolyzate and may be used at the treatment of the tanning industry raw wastes for utilization as the fodder additive in the cattle ration, as the fertilizer and in medicine - at production of the cosmetics. The wastes of tanning rawstock are subjected to the alkaline-peroxide treatment in the water solution of sodium hydroxide and hydrogen peroxide at their consumption accordingly 2.0-3.0 % and 1.6-1.8 % from the mass of the wastes. Then conduct hydrolysis using Savinaz enzyme preparation produced from the generically modified cultivation of Bacillus. Hydrolysis is conducted at presence of ammonium sulfate at the consumption of the enzyme preparation and the ammonium sulfate accordingly as 02-2.0 % and 1.3-1.5 % from the mass of the wastes. The method allows to improve the quality of the protein hydrolyzate and to expand the field of its application.

EFFECT: the invention ensures improvement of the quality of the protein hydrolyzate and expansion of the sphere of its application.

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