Stable aqueous antimicrobial lipase enzyme compositions
First Claim
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1. An antimicrobial enzymatic floor cleaning composition comprising:
- a) an antimicrobial selected from the group consisting of a tertiary amine or a quaternary ammonium compound;
b) a lipase;
c) 0.5 to 6.0 wt. % of an inorganic acid;
d) a surfactant selected from the group consisting of an alkyl polyglucoside, an amine oxide, and mixtures thereof;
e) an organic solvent; and
f) from about 50-80% waterwherein the composition has a pH in the range from about 5.5 to about 7.5, and the composition has 15% of its original enzyme activity after 21 days at a temperature of 40°
C. and the composition is free of boric acid or a boric acid salt.
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Abstract
The disclosure relates to an enzyme stabilization system, compositions with the enzyme stabilization system, and methods of using the enzyme composition. Preferred ratios of acid to amine are effective at stabilizing enzyme. Optional nonionic surfactants and solvents also positively contribute to enzyme stability. The compositions are useful in cleaning applications.
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Citations
8 Claims
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1. An antimicrobial enzymatic floor cleaning composition comprising:
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a) an antimicrobial selected from the group consisting of a tertiary amine or a quaternary ammonium compound; b) a lipase; c) 0.5 to 6.0 wt. % of an inorganic acid; d) a surfactant selected from the group consisting of an alkyl polyglucoside, an amine oxide, and mixtures thereof; e) an organic solvent; and f) from about 50-80% water wherein the composition has a pH in the range from about 5.5 to about 7.5, and the composition has 15% of its original enzyme activity after 21 days at a temperature of 40°
C. and the composition is free of boric acid or a boric acid salt. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification
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Current AssigneeEcolab USA Incorporated (Ecolab, Inc.)
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Original AssigneeEcolab USA Incorporated (Ecolab, Inc.)
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InventorsHerdt, Brandon L., Strothoff, Werner, Siegmann, Alice
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Primary Examiner(s)BOYER, CHARLES I
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Application NumberUS13/105,208Publication NumberTime in Patent Office440 DaysField of Search510/161, 510/214, 510/218, 510/226, 510/237, 510/234, 510/253, 510/269, 510/271, 510/432, 510/470, 510/480, 510/503, 510/504, 510/499, 510/501, 510/530US Class Current510/234CPC Class CodesC11D 1/40 Monoamines or polyamines; S...C11D 1/62 Quaternary ammonium compoundsC11D 3/042 AcidsC11D 3/2075 Carboxylic acids-salts thereofC11D 3/30 Amines; Substituted amines ...C11D 3/33 Amino carboxylic acidsC11D 3/38627 containing lipaseC11D 3/38663 Stabilised liquid enzyme co...C11D 3/43 SolventsC11D 3/48 Medical, disinfecting agent...
