Color modification of textile

A method of treating textile, comprising contacting a textile with a peroxidase, a source of hydrogen peroxide, and a mediator having the structure:

• wherein
• U1, U2 and U3 are identical or different and are O, S or NOH;
• and
• R1 and R2 are identical or different and are hydrogen, hydroxyl, formyl, carbamoyl or sulfono radical, ester or salt of the sulfono radical, sulfamoyl, nitro, nitroso, amino, cyano, phenyl, benzyl C1-C4-alkyl, C1-C4-alkoxy, C1-C4-carbonyl, or carbonyl-C1-C4-alkyl.

The method of treating textile comprising

• (a) contacting the textile with cellulase;
• and
• (b) contacting a textile with a peroxidase, a source of hydrogen peroxide, and a mediator having the structure
• wherein
• U1, U2 and U3 are identical or different and are O, S or NOH;
• and
• R1 and R2 are identical or different and are hydrogen, hydroxyl, formyl, carbamoyl or sulfono radical, ester or salt of the sulfono radical, sulfamoyl, nitro, nitroso, amino, cyano, phenyl, benzyl C1-C4-alkyl, C1-C4-alkoxy, C1-C4-carbonyl, or carbonyl-C1-C4-alkyl, wherein step (a) and (b) are performed sequentially or simultaneously in the same bath.

A composition, comprising a peroxidase, a source of hydrogen peroxide, and a mediator having the structure:

• wherein
• U1, U2 and U3 are identical or different and are O, S or NOH;
• and
• R1 and R2 are identical or different and are hydrogen, hydroxyl, formyl, carbamoyl or sulfono radical, ester or salt of the sulfono radical, sulfamoyl, nitro, nitroso, amino, cyano, phenyl, benzyl C1-C4-alkyl, C1-C4-alkoxy, C1-C4-carbonyl, or carbonyl-C1-C4-alkyl.