Enzymatic treatment of hides

Details Enzymatic treatment of hides Enzymatic treatment of hides

C - Chemistry, Metallurgy

14

C

195/62

C14C 1/04 (2006.01) C12P 1/00 (2006.01) C14C 1/00 (2006.01)

Patent

CA 1038315

ABSTRACT OF THE DISCLOSURE The Specification describes a process for the preparation of hides prior to tanning which comprises treating the hide with an aqueous solution having a pH from 9 to 12 and containing:- a) a fungal proteinase having an optimim activity relative to casein at pH >7.0, trypsin, papain or a bacterial protease having an optimum activity relative to casein at pH from 6 to 9, or a mixture of two or more such substances; b) a bacterial protease having an optimum activiry relative to haemogloben at pH 9.0; and c) thioglycolic acid or a salt thereof, whereby soaking, deh?ring,skin loosening and bating of the hide is effected.

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