METHOD OF COLLAGEN SUBSTANCE OBTAINMENT OUT OF ANIMAL MATERIAL (VERSIONS) Russian patent published in 2015 - IPC A23J1/10 C14C1/08 

FIELD: biotechnologies.

SUBSTANCE: inventions refer to biotechnology and can be used for collagen substrate obtainment. The method involves hide trimming, clipping and scouring. Raw hide is processed with peroxide alkali solution containing 1% to 10% of sodium hydroxide and 0.05% to 0.8% of hydrogen peroxide at 5°C to 20°C. Raw hide is degreased at inner side till fatty substance content is reduced to 0.05-1%, and flushed in flowing water to obtain neutral pH. Raw hide is aged for 6-24 hours at -20°C to -30°C and ground at -10°C - -20°C to a particle size of 2-5 mm. To obtain dry powder collagen substance, ground raw hide is dehydrated by sublimation to moisture level of 1-10% with further temperature rise to 20-40°C and hide milling to powder, thus obtaining the end product. To obtain liquid collagen substance, ground raw hide is treated with food acids and filtered, thus obtaining the end product.

EFFECT: improved quality of product obtained, reduced process duration.

3 cl, 2 ex