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Preventing Adhesion of Bacteria

IP.com Disclosure Number: IPCOM000237363D
Publication Date: 2014-Jun-16

Publishing Venue

The IP.com Prior Art Database

Related People

Novozymes A/S: OWNER

Abstract

The present invention concerns a detergent composition comprising one or more anionic surfactants; an enzyme selected from the group consisting of: a protease, a lipase, a cutinase, an amylase, a carbohydrase, a cellulase, a pectinase, a mannanase, an arabinase, a galactanase, a xylanase, and an oxidase; and a deoxyribonuclease (DNase).

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 3% of the total text.

Page 01 of 93

12978-EP-EPA[2]

PREVENTING ADHESION OF BACTERIA

Reference to a Sequence Listing

    This application contains a Sequence Listing in computer readable form. The computer readable form is incorporated herein by reference.

FIELD OF THE INVENTION

    The invention relates to a detergent composition comprising a deoxyribonuclease (DNase), a washing method for textile, a textile washed according to the method and the use of DNase for reducing malodor from laundry and/or textile, for anti-redeposition and for

maintaining or improving the whiteness of a textile.

BACKGROUND

    When laundry items like T-shirts or sportswear are used, they are exposed to bacteria from the body of the user and from the rest of the environment in which they are used. These

bacteria are a source of bad odor, which develops after use, but which may remain even after wash. The reason for this bad odor is adhesion of bacteria to the textile surface. Because of the adhesion to the textile, the bacteria may remain even after wash, and continue to be a source of bad odor.

International patent application WO 2011/098579 concerns bacterial deoxyribonuclease

compounds and methods for biofilm disruption and prevention.

    The present invention relies on data from a study (see Example 1) of the bacterial diversity in real-life laundry items. Twenty-four bacterial and fungal colonies were isolated from the laundry items, many of which gave rise to very unpleasant smell/malodor.

The present invention provides a solution to odor problem by reducing the adhesion of

certain specific bacteria to the textile surface during wash. The selected bacteria are sources of very bad odor, and were isolated from real-life laundry items.

SUMMARY

The present invention provides a detergent composition comprising one or more anionic

surfactants; an enzyme selected from the group consisting of: a protease, a lipase, a cutinase, an amylase, a carbohydrase, a cellulase, a pectinase, a mannanase, an arabinase, a galactanase, a xylanase, and an oxidase; and a deoxyribonuclease (DNase).

    The invention further concerns a washing method for textile comprising:
a. exposing a textile to a wash liquor comprising a DNase or a detergent composition

according to the invention,


b. completing at least one wash cycle; and


c. optionally rinsing the textile.

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Page 02 of 93

12978-EP-EPA[2]

The invention further concerns a textile washed according to the inventive method.

    And the invention concerns the use of a deoxyribonuclease (DNase) for reducing malodor from laundry and/or textile.for reducing malodor from laundry and/or textile, for anti-redeposition and for maintaining or improving the whiteness of a textile.

Definitions

     By the term "deep cleaning" is meant disruption or removal of a biofilm or components of a biofilm such as polysaccharides, proteins, DNA, soil or other components present in the

biofilm. of this invention. The precise nature of these additional adjunct components, and levels of...