FIELD: food industry. SUBSTANCE: stock is crushed to particle size 1 mm, suspended in water, pH of suspension is adjusted to 2.0-5.0 and temperature to 60-130 C. Extraction of gelatin is then carried out for 1 sec to 1 hr. Remaining suspension is cooled to 100-60 C and pH of suspension or its gelatin-containing liquid part is adjusted to 5.5- 6.0, respectively before or after separation of suspension into gelatin-containing liquid part and solid residue. Before filtration of gelatin, process water is not removed. Filtered gelatin is dried. EFFECT: enhanced process efficiency. 10 cl, 1 dwg, 1 tbl, 3 ex
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