METHOD FOR PRODUCING OF HYDROLYZATES FROM MEAT, POULTRY, FISH BONE WASTES Russian patent published in 2006 - IPC A23J1/00 

FIELD: food-processing industry, in particular, methods used in production of sausage and delicacy products from meat, poultry and fish, and also in dry feed and food additive production.

SUBSTANCE: method involves providing three-staged hydrolysis process: first stage including production of hydrolyzate 1 by performing aqueous hydrolysis in predetermined process modes, separating liquid phase from which fat and suspended particles are removed and dried, said hydrolyzate possessing jellying properties and being used for obtaining of delicacy products; second and third stages including hydrolysis of solid bone remains, using hydrochloric acid solution in predetermined temperature and time modes and at predetermined component ratio, separating liquid fraction (hydrolyzate 2 and 3), neutralizing using sodium hydroxide, cleaning from fat and suspended particles, and drying. All fractions may be utilized as protein dry and feed additives.

EFFECT: wider range of usage and improved quality of products prepared with the use of said hydrolyzates.

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