[Hydrolysis of raw keratin wastes with use of certain sulfonic acids. II. Analysis of optimal conditions for hydrolysis].

We have fixed optimal conditions to hydrolysis of the waste keratin material cerebellum, hoof and bristle. With apply 1 mol/dm3 solutions of acids: amide-, benzene-, 4-methylbenzene- and naphtalene-1-sulfonate, the best results obtained by degradation protein for 24 hours in closed glass tube in the argon in the temperature 110 degrees C by means of benzenesulfonate acid; materials after hydrolysis contain all exogenous amino acids.