PROCEDURE FOR HYDROLYZING KERATIN

摘要

The present invention relates to a procedure for hydrolyzing keratin, in which procedure the solid keratin ingredient is (a) pretreated with an aqueous solution containing sulphite ions to form denatured keratin, and (b) hydrolyzed with the aid of a proteolytic enzyme to form keratin hydrolysate. The pretreatment is carried out at about 60 to 100 DEG C and it lasts about 10 minutes to 4 hours. The hydrolysate thus obtained can be treated further for use as fodder addition or to form oligopeptides for use in cosmetics.