Compositions – Compositions containing a single chemical reactant or plural... – Organic reactant
Patent
1990-08-30
1992-02-18
Lieberman, Paul
Compositions
Compositions containing a single chemical reactant or plural...
Organic reactant
25217412, 252DIG12, 252DIG14, C11D 3386, C11D 742
Patent
active
050891634
ABSTRACT:
The invention relates to the stabilization of mixtures of proteolytic and lipolytic enzymes in a liquid medium such as a liquid detergent composition. By inclusion therein of a stabilizing system comprising a polyol and a boron compound which are capable of reacting with each other whereby the polyol has a first binding constant with the boron compound of at least 500 l/mole and a second binding constant of at least 1,000 l.sup.2 /mole.sup.2, the stability of the lipase in the presence of the protease is significantly improved.
The lipase is preferably obtained from Humicola lanuginosa, and the stabilizing system preferably comprises a mixture of sorbitol and borax.
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"Equilibria Between Borate Ion and Some Polyols in Aqueous Solution", Conner et al., J. Inorg. Nucl. Chem., (vol. 29), 1967, pp. 1953, 1958.
European Search Report for EP 90 20 0155, 5/15/91.
Aronson Michael P.
Cardinali Martin S.
McCown Jack T.
Beadles-Hay A.
Farrell James J.
Lever Brothers Company Division of Conopco, Inc.
Lieberman Paul
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