POLYPEPTIDER MED DEMETHYLERINGSAKTIVITET

The present invention relates to fungal enzymes, more in particular of polyphenoloxidases (PPOs), and is based on a newly discovered enzymatic activity of a class of PPOs, i.e. de-methylation of R-substituted mono- or di-methoxyphenolsuch as present in lignin, lignin derived compounds and/or in lign...

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Hauptverfasser:	IANCU, Svetlana Laura, KABEL, Mirjam Anna, LANGE, Heiko, CRESTINI, Claudia, FROMMHAGEN, Matthias, KOETSIER, Martijn Johannes, BENJELLOUN-MLAYAH, Bouchra, VISSER, Jacob, Gruppen, Harm
Format:	Patent
Sprache:	dan
Schlagworte:	ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES BEER BIOCHEMISTRY CANDLES CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA DETERGENT COMPOSITIONS DETERGENTS ENZYMOLOGY FATTY ACIDS THEREFROM FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR IMPREGNATING OR COATING OF PAPER LAUNDERING METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS PULP COMPOSITIONS RECOVERY OF GLYCEROL RESIN SOAPS SOAP OR SOAP-MAKING SPIRITS TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TREATMENT OF TEXTILES OR THE LIKE TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS USE OF SINGLE SUBSTANCES AS DETERGENTS VINEGAR WINE
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Beschreibung
Zusammenfassung:	The present invention relates to fungal enzymes, more in particular of polyphenoloxidases (PPOs), and is based on a newly discovered enzymatic activity of a class of PPOs, i.e. de-methylation of R-substituted mono- or di-methoxyphenolsuch as present in lignin, lignin derived compounds and/or in lignocellulosic biomass. This newly discovered enzymatic activity renders these enzymes highly suitable for a plethora of applications in industry. Provided herein are methods of demethylation, processes to increase the reactivity of lignin or lignin-comprising biomass, processes of conversion lignin or lignin comprising biomass to value added products, processes for degrading and/or modifying (hemi-)cellulose in a hemicellulose-comprising substrate, and expression vectors, host cells and liquids, pastes or solid formulations and compositions for use in the demethylation method of the invention.