Chemistry: molecular biology and microbiology – Enzyme – proenzyme; compositions thereof; process for... – Stablizing an enzyme by forming a mixture – an adduct or a...
Patent
1992-11-30
1994-10-18
Naff, David M.
Chemistry: molecular biology and microbiology
Enzyme , proenzyme; compositions thereof; process for...
Stablizing an enzyme by forming a mixture, an adduct or a...
252546, 252545, 252DIG12, C12N 996, C11D 118
Patent
active
053568001
ABSTRACT:
A stabilizing formulation capable of enhancing the storage and shelf-life of liquid enzymatic compositions as well as acting as a dispersant aid for industrial process waters. Such stabilizing formulation contains at least one water-soluble coupling agent selected from a short chain alcohol and a short chain glycol, at least one of (i) a polyethoxylated alkyl diamine and (ii) an amine oxide, and water. The polyethoxylated alkyl diamine and/or amine oxide is present in an amount effective to stabilize one or more enzymes contained in a liquid enzymatic composition. A stabilized liquid enzymatic composition may contain one or more components of the stabilizing formulation and an enzyme. Methods for the stabilization of a liquid enzymatic composition which involve the step of adding one or more enzymes to a stabilizing formulation, or the step of combining a stabilizing formulation with a liquid enzymatic composition containing one or more enzymes where the diamine and/or amine oxide is present, after addition, in an amount effective to stabilize one or more of the enzymes.
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