Detergents with stabilized enzyme systems

Details Detergents with stabilized enzyme systems Detergents with stabilized enzyme systems

C - Chemistry, Metallurgy

11

D

C11D 3/386 (2006.01) C11D 3/39 (2006.01)

Patent

CA 2656252

The present invention provides methods and compositions for the stabilization of oxidase enzymes during storage. In some preferred embodiments, the oxidase is a component of liquid detergent compositions. In some particularly preferred embodiments, the oxidase is stabilized by the addition of a reversible inhibitor of the oxidase to a liquid detergent. In some particularly preferred embodiments, the oxidase is stabilized with bisulfite. In further preferred embodiments, the use of a reversible inhibitor also prevents premature generation of peroxide during storage of liquid detergent. In additional embodiments, liquid detergent formulations comprised of oxidase enzyme, its substrate, and its reversible inhibitor produce active oxygen species (peroxide) upon dilution of the liquid detergent in laundry wash liquor.

Procédés et compositions de stabilisation d'enzymes oxydase pendant le stockage. Dans des modes de réalisation préférés, l'oxydase est un constituant de compositions détergentes liquides. Mieux encore, l'oxydase est stabilisée par l'adjonction d'un inhibiteur réversible de cette dernière à un détergent liquide, en particulier par un bisulfite. Dans d'autres modes de réalisation préférés, l'utilisation d'un inhibiteur réversible empêche en outre la formation prématurée d'un peroxyde pendant le stockage du détergent liquide. Dans d'autre modes de réalisation, des préparations détergentes liquides constituées d'une enzyme oxydase, de son substrat et de son inhibiteur réversible produisent une variété d'oxygène actif (peroxyde) lors de la dilution du détergent liquide dans le liquide pour lessive.

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