The processing of keratin-containing maral material

The conditions of carrying out keratin-containing maral materials hydrolysis were studied. Maral wool and hooves served as the material of the study. The hydrolysis was conducted in an autoclave at the temperature of 120°С for 5-10 hours in 1:10 hydraulic module. Enzymatic hydrolysis was conducted for 8-12 hours at the temperature of 45- 50 °С in ultrasound field using enzymes of microbial origin with keratinizing activity: Protozyme B (bacterial protease) and Protozyme С (fungus pro- tease). The amount of enzymes introduced to hydrolysate comprised 2 % of raw material amount. Obtained hydrolysate was being filtered and dried up in infra-red drying chamber to residual humidity of 7-10 %. It was established that processing maral hooves by hydrolysis in the autoclave for 5 hours with subsequent fermentation within 8 hours providing 16.0 % of an exit of dry soluble concentrate with mass fraction of protein of 80.3 % was optimum. Alkaline hydrolysis of maral wool was conducted in 0...