Stable solid enzyme compositions and methods employing them
First Claim
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1. A solid enzyme cleaning composition comprising detersive enzyme and a mixture of carbonate and bicarbonate;
- the carbonate and bicarbonate being present in a weight ratio of about 0.5;
1 to about 4.75;
1;
wherein the ratio of carbonate to bicarbonate is selected to increase stability of the detersive enzyme.
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Abstract
The present invention relates to a solid enzyme cleaning composition in which the enzyme is stable in the presence of mixtures of carbonate and bicarbonate at alkaline pH, and methods employing this composition. The enzyme cleaning composition preferably employs weight ratios of carbonate and bicarbonate to stabilize one or more enzymes in a solid, a concentrate, and/or a use composition, and at temperatures higher than ambient.
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31 Claims
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1. A solid enzyme cleaning composition comprising detersive enzyme and a mixture of carbonate and bicarbonate;
- the carbonate and bicarbonate being present in a weight ratio of about 0.5;
1 to about 4.75;
1;
wherein the ratio of carbonate to bicarbonate is selected to increase stability of the detersive enzyme. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
- the carbonate and bicarbonate being present in a weight ratio of about 0.5;
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19. A method of cleaning an instrument, comprising:
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dissolving a solid enzyme cleaning composition in water, the solid enzyme cleaning composition comprising detersive enzyme and a mixture of carbonate and bicarbonate;
the carbonate and bicarbonate being present in a weight ratio of about 0.5;
1 to about 4.75;
1;
contacting the instrument with the dissolved solid enzyme cleaning composition at a temperature at or above ambient temperature. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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28. A liquid concentrate composition comprising water, detersive enzyme, and a mixture of carbonate and bicarbonate;
- the carbonate and bicarbonate being present in a weight ratio of about 0.5;
1 to about 4.75;
1. - View Dependent Claims (29)
- the carbonate and bicarbonate being present in a weight ratio of about 0.5;
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30. A use composition comprising water, detersive enzyme, and a mixture of carbonate and bicarbonate;
- the carbonate and bicarbonate being present in a weight ratio of about 0.5;
1 to about 4.75;
1. - View Dependent Claims (31)
- the carbonate and bicarbonate being present in a weight ratio of about 0.5;
Specification