Process and composition for preparing a lignocellulose-based...

D - Textiles – Paper – 21 – C

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D21C 3/00 (2006.01) C08L 61/04 (2006.01) C08L 97/02 (2006.01) C12N 9/02 (2006.01) D06M 15/15 (2006.01) D06M 16/00 (2006.01) D21C 9/00 (2006.01) D21H 17/00 (2006.01)

Patent

CA 2390639

A process for the manufacture of a lignocellulose product, the process comprising the step of mixing in a reaction medium (i) a phenolic polymer being substituted with a phenolic hydroxy group; (ii) a lignocellulose containing material having immobilized to a cellulosic fraction thereof a fusion polypeptide, the fusion polypeptide including an enzyme being capable of cat-alyzing the oxidation of phenolic groups and a cellulose binding peptide; and (iii) an oxidizing agent. A composition of matter for use in the process and a lignocellulose product obtainable by the process are also disclosed.

L'invention concerne un procédé de fabrication d'un produit à base de lignocellulose. Ce procédé comprend les étapes consistant à mélanger dans un milieu de réaction (i) un polymère phénolique étant substitué par un groupe hydroxy phénolique; (ii) une lignocellulose présentant immobilisé, par rapport à une fraction cellulosique, un polypeptide hybride, ce polymère comprenant une enzyme capable de catalyser l'oxydation des groupes phénoliques ainsi qu'un peptide liant la cellulose; et (iii) un agent d'oxydation. L'invention concerne également une composition à utiliser dans le procédé et un produit à base de lignocellulose qui peut être obtenu au moyen de ce procédé.

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