METHOD OF PRODUCING GELATINE Russian patent published in 2013 - IPC C09H1/04 C09H3/00 A23J1/10 

FIELD: chemistry.

SUBSTANCE: method involves washing collagen-containing material, crushing, boiling, separating the broth, filtering, evaporating and drying. After washing, the material is rinsed with an anolyte of an electrochemically activated solution with pH 2.5-6. Collagen is extracted by enzymatic hydrolysis of the material. The hydrolysis process is carried out with a catholyte of an electrochemically activated solution with pH 7.5-8.5 for 2-2.5 hours until achieving degree of hydrolysis on solubility of the material of 45.5-48.5 wt % of the material. The gelatine broth is evaporated to content of dry substances of 15-20% and then dried in foamed state with foam layer thickness of 2-4 mm with relative air humidity of 50-60% for 3-4 hours.

EFFECT: cutting duration of the process of extracting collagen and drying the broth, obtaining an end product with high protein content, low content of moisture and sols, and improved organoleptic properties.

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