Enzymatic bating method
AssigneeRohm Co., Ltd.
InventorsRolf Monsheimer, Ernst Pfleiderer
Life of this patent
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Abstract
A method for bating soaked, limed, dehaired hides with an enzyme mixture of (a) a bacterial protease having an optimum efficacy toward hemoglobin at a pH from 10 to 12 and (b) a fungus protease having an optimum efficacy toward casein at a pH greater than 7, or a neutral to weakly alkaline bacterial protease, papain, or trypsin.
Claims2
A method for bating soaked, limed, dehaired skins and hides which comprises contacting said skins and hides for 15 minutes to 300 minutes with an aqueous bath having a temperature from 25.degree. to 35.degree.C. and a pH between 7.5 and 10, said aqueous bath comprising an enzyme mixture consisting essentially of
- a. a bacterial protease having an optimum efficacy towards hemoglobin at a pH from 10 to 12, and
- b. a fungus protease having an optimum efficacy toward casein at a pH above 7, a neutral to weakly alkaline bacterial protease, papain, trypsin, or a mixture of these proteases, said enzyme mixture being present in an amount equivalent to 0.3 to 6.5 percent, by weight of said skins and hides, of enzymes having an enzymatic activity of 1000 Loehlein-Vollhardt units.
Dependencies are inferred from the claim text.