Method for producing lignocellulose-containing insulating materials, comprising the steps of: a) providing a lignocellulose-containing precursor material; b) adding an incubation solution to this precursor material, wherein the incubation solution comprises at least one mediator and at least one phenol oxidising enzyme at a pH-value of ≤ 8, preferably at a pH-value of ≤ 6; c) mechanical and/or thermomechanical deformation after an incubation time of < 30 min; d) optionally immediate finishing, wherein the mediator comprises a material according to structure I or consists thereof: wherein R 1 is selected from hydroxyl (-OH) and thiol (-SH); each X is independently selected from the group consisting of single bond, -CR'R"-, -CR'=CR"-, wherein R' and R"are independently selected from the group consisting of hydrogen, alkyl, aryl, cycloalkyl, and R 2 to R 6 are independently selected from the group consisting of hydrogen, hydroxyl, thiol, halogen, pseudohalogen, formyl, carboxy- and/or carbonyl derivatives, alkyl, long-chain alkyl, alkoxy, long-chain alkoxy, cycloalkyl, halogen alkyl, aryl, arylenes, halogen aryl, heteroaryl, heteroarylenes, heterocycloalkylenes, heterocycloalkyl, halogene heteroaryl, alkenyl, halogene alkenyl, alkynyl, halogen alkynyl, keto, ketoaryl, halogen ketoaryl, ketoheteroaryl, ketoalkyl, halogen ketoalkyl, ketoalkenyl, halogen ketoalkenyl, phosphoalkyl, phosphonates, phosphates, phosphine, phosphine oxide, phosphoryl, phosphoaryl, sulphonyl, sulphoalkyl, sulphoarenyl, sulphonates, sulphates, sulphones, polyether, silylalkyl, silylalkyloxy, wherein for suitable residues one or more non-adjacent CH 2 groups independently can be substituted by -O-, -S-, -NH-, -NR°-, -SiR°R°°-, -CO-,-COO-, -OCO-, -OCO-O-, -SO 2 -, -S-CO-, -CO-S-, -CY 1 =CY 2 or -C=C- in such a manner that O and/or S atoms are not directly bond to each other (terminal CH 3 groups are understood as CH 2 groups in the sense of CH 2 -H), and wherein at least one residue R 2 to R 6 is selected from the group consisting of alkoxy, formyl, carboxy and/or carbonyl derivatives, keto, ketoaryl, halogen ketoaryl, ketoheteroaryl, ketoalkyl, halogen ketoalkyl, ketoalkenyl, halogen ketoalkenyl, sulphonyl, sulphoalkyl, sulphoarenyl, sulphonates, sulphates, sulphone. a) providing a lignocellulose-containing precursor material; b) adding an incubation solution to this precursor material, wherein the incubation solution comprises at least one mediator and at least one phenol oxidising enzyme at a pH-value of ≤ 8, preferably at a pH-value of ≤ 6; c) mechanical and/or thermomechanical deformation after an incubation time of < 30 min; d) optionally immediate finishing, R 1 is selected from hydroxyl (-OH) and thiol (-SH); each X is independently selected from the group consisting of single bond, -CR'R"-, -CR'=CR"-, wherein R' and R"are independently selected from the group consisting of hydrogen, alkyl, aryl, cycloalkyl, and R 2 to R 6 are independently selected from the group consisting of hydrogen, hydroxyl, thiol, halogen, pseudohalogen, formyl, carboxy- and/or carbonyl derivatives, alkyl, long-chain alkyl, alkoxy, long-chain alkoxy, cycloalkyl, halogen alkyl, aryl, arylenes, halogen aryl, heteroaryl, heteroarylenes, heterocycloalkylenes, heterocycloalkyl, halogene heteroaryl, alkenyl, halogene alkenyl, alkynyl, halogen alkynyl, keto, ketoaryl, halogen ketoaryl, ketoheteroaryl, ketoalkyl, halogen ketoalkyl, ketoalkenyl, halogen ketoalkenyl, phosphoalkyl, phosphonates, phosphates, phosphine, phosphine oxide, phosphoryl, phosphoaryl, sulphonyl, sulphoalkyl, sulphoarenyl, sulphonates, sulphates, sulphones, polyether, silylalkyl, silylalkyloxy, wherein for suitable residues one or more non-adjacent CH 2 groups independently can be substituted by -O-, -S-, -NH-, -NR°-, -SiR°R°°-, -CO-,-COO-, -OCO-, -OCO-O-, -SO 2 -, -S-CO-, -CO-S-, -CY 1 =CY 2 or -C=C- in such a manner that O and/or S atoms are not directly bond to each other (terminal CH 3 groups are understood as CH 2 groups in the sense of CH 2 -H), and