FIELD: food processing industry, in particular production of edible collagen membrane for sealing of foodstuffs such as ham, etc.
SUBSTANCE: according to invention fresh porcine skins are rapidly frozen. Then before further treatment thereof skins are defrosted and defatted by using enzymes. Further skins are sequentially treated by fast alkaline hydrolysis, acid hydrolysis and ground to produce gel-like liquid mass. In last step gel-like mass is extruded, plated and dried to produce target membrane.
EFFECT: collagen sealing membrane with excellent protective characteristics against food oxidation and dehydration.
22 cl, 1 dwg, 2 ex
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