METHOD OF OBTAINING FAT FROM FAT-CONTAINING RAW MATERIALS Russian patent published in 2019 - IPC C11B1/12 

FIELD: fat and oil industry.

SUBSTANCE: invention relates to fat and oil industry. Method of obtaining fat from fat-containing fish raw materials, including the grinding of raw materials, the introduction of a 30 % aqueous solution of urea at the rate of 1.5 % of dry matter by weight of the crushed raw materials, heat treatment of the mixture, centrifugation and separation. Heat treatment of the ground mixture is carried out at a temperature of 70 °C for 60 minutes, then carry out the separation of the mixture into dense and liquid parts by centrifugation. Hot water with a temperature of 70 °C is introduced into the dense part in the amount of 20 % by weight of raw materials and maintain the mixture at this temperature of 70 °C for 60 minutes, after processing, separated dense and liquid parts are separately sent for settling at a temperature not exceeding 20 °C until complete separation of the phases, and then subjected to separate separation.

EFFECT: invention allows to improve the quality of fat and increase its yield.

1 cl, 2 tbl, 3 ex