A method for purifying an aqueous peroxidase enzyme containing solution and peroxidase solution purified thereby are disclosed; the method includes the steps of:providing an aqueous solution containing a peroxidase enzyme;adding a water-immiscible or partially water-miscible organic solvent to said aqueous solution to form a mixture having an organic phase and an aqueous phase;agitating said mixture to extract impurities from said aqueous phase into said organic phase;separating said aqueous phase from said organic phase; anddiscarding said organic phase.