Enzymatic method for the oxidative degradation of fluorescent compounds

Fluorescent compounds in aqueous systems can be broken down by treatment of said aqueous systems with an enzyme from the group comprising the oxidases and peroxidases and with an oxidising agent taken from the group of compounds containing or forming O2, H2O2 and O2, or H2O2, at a temperature of between 5 and 90 DEG C and a pH value of 5-10. The treatment can be carried out in the presence of surface-active auxiliary agents.