Method for the preparation of carbohydrate cleavage products...

C - Chemistry – Metallurgy – 12 – P

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C12P 7/10 (2006.01) C12P 7/18 (2006.01) C12P 19/14 (2006.01)

Patent

CA 2757039

A method for the preparation of carbohydrate cleavage products, characterized by the combination of the measures that the lignocellulosic material is treated with an aqueous solution containing hydrogen peroxide, an alcohol, in particular a C1-4 alcohol or a phenol, and a base in order to oxidatively break down lignocellulose and to separate cleavage products from the material, and that the obtained material enriched with cellulose and hemicelluloses is treated with a carbohydrate-cleavage enzyme in order to prepare the carbohydrate cleavage products.

L'invention concerne un procédé de préparation de produits de dégradation des glucides caractérisé par la combinaison des opérations consistant à traiter la matière lignocellulosique avec une solution aqueuse contenant du peroxyde d'hydrogène, un alcool, en particulier un alcool en C1-4 ou un phénol, et une base afin de dégrader la lignocellulose par voie oxydative et de séparer les produits de dégradation de ladite matière lignocellulosique, une matière enrichie en cellulose et en hémicellulose étant obtenue, et à traiter la matière enrichie en cellulose et en hémicellulose ainsi obtenue avec une enzyme dégradant les glucides afin d'obtenir les produits de dégradation des glucides.

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