FIELD: chemistry.
SUBSTANCE: method involves rinsing the starting material with an anolyte of electrochemically activated solution with pH 4-5 after washing. When pulping leather, an electrochemically activated solution with pH 2-2.5 is used, which forms an acidic medium of a liquid fraction with pH 4-4.5 without further use of acids. When extracting collagen from the material, two-step pulping is used at temperature 55-60°C. To purify the broth from protein substances of non-collagen nature, edible acids with low concentration are used.
EFFECT: improved process and obtaining gelatin of high quality.
4 cl, 3 ex
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