Degradation resistant detergent compositions based on cellulase enzymes
AssigneeGenencor International, Inc.
InventorsNancy Bjork, Kathleen A. Clarkson, Pushkaraj J. Lad, Geoffrey L. Weiss
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Abstract
Disclosed are detergent compositions containing a combination of exo-cellobiohydrolase I type cellulase components and endoglucanase type components wherein the exo-cellobiohydrolase I type cellulase components are enriched relative to the endoglucanase type components. The detergent compositions of this invention provide cleaning and softening of cotton garments while also providing substantially reduced degradation of the cotton fabric in the garment.
Claims27
A detergent composition comprising at least one surface active agent and a cleaning effective amount of a cellulase composition wherein said cellulase composition contains a weight ratio of exo-cellobiohydrolase I cellulase components to endoglucanase components of greater than about 10:1 to 400:1.
A method for enhancing the degradation resistance to cotton fabric of a detergent composition containing a cellulase which comprises:
- (a) selecting a cellulase composition containing a weight ratio of exo-cellobiohydrolase I cellulase components to endoglucanase component of greater than about 10:1 to 400:1;
- and
- (b) adding said cellulase composition selected in (a) above to a detergent composition so as to form a degradation resistant detergent composition containing cellulase.
A method for softening cotton fabric which comprises contacting said fabric with an aqueous solution containing a detergent composition comprising at least one surface active agent and a softening effective amount of a cellulase composition having a weight ratio of exo-cellobiohydrolase I cellulase components to endoglucanase components of greater than about 10:1 to about 400:1.
Dependencies are inferred from the claim text.