Method for enhancing the activity of an enzyme, bleach composition, detergent composition and process for inhibiting dye transfer

Abstract From the Canadian patent

There is provided a process for enhancing the activity of an oxidoreductase comprising adding to the enzyme, as an enhancer for the activity of said enzyme, a compound having formula (I) wherein R1-R4 may each independently represent hydrogen, hydroxy, halogen, nitroso formyl, carboxyl, and esters , and salts thereof carbyamoyl, sulfo and esters and salts hereof sulfamoyl, nitro, amino, phenyl, C1-C20 alkyl C1-C8 alkoxy, carbonyl-C1-C6-alkoxy, aryl- C1-C6-alkyl, whereby two of the groups R1-R4 may be linked together by any group, and A is a five or six membered heterocyclic ring which may be optionally substituted with any of the radicals as defined for R1-R4. A bleach composition, a …