A process for macromolecularizing phenolic compounds or
aromatic amine compounds by the action of a catalyst comprising an
enzyme having a
polyphenol oxidizing activity in the alkali region; applications of the compounds obtained by the above process to thickeners, stabilizers, coagulants, emulsifiers, dispersants, water retainers, antioxidants, adhesives, concrete admixtures, dyes,
coating materials,
petroleum recovering agent,
soil conditioner, a blow-applied seed
bearing surface soil stabilizer, deodorants, smell eliminators, agricultural chemical spreaders, feeding stuff binders, bactericides,
antimicrobial agents,
viral infection inhibitors, bioadhesion preventives, biotic repellents, insecticides, poultices, ink bases or wood treating agents; and method of waste water disposal, a method of
deoxygenation and a method of treating wood, concrete or soil in which use is made of the above reaction.