Cell wall derivatives from biomass and preparation thereof

Details Cell wall derivatives from biomass and preparation thereof Cell wall derivatives from biomass and preparation thereof

C - Chemistry, Metallurgy

08

B

C08B 37/08 (2006.01) C08B 37/00 (2006.01)

Patent

CA 2475258

In a first aspect, the present invention relates to a method for isolating cell wall derivatives from fungal or yeast biomass. According to this method, chitin polymers or chitin-glucan copolymers can be obtained. In another aspect, the invention relates to a method for preparing chitosan from chitin. The invention further relates to chitin polymers, chitin-glucan polymers and chitosan polymers obtainable by the methods according to the invention. Moreover, the invention relates to the use of chitin polymers, chitin-glucan copolymers or chitosan polymers obtainable by the method according to the present invention in medical, pharmaceutical, agricultural, nutraceutical, food, textile, cosmetic, industrial and/or environmental applications.

Selon une première variante, la présente invention se rapporte à un procédé d'isolement de dérivés de membrane cellulaire à partir de la biomasse fongique et de levure. Ce procédé permet d'obtenir des polymères de chitine ou des copolymères chitine-glucane. Selon une autre variante, l'invention se rapporte à un procédé de préparation de chitosane à partir de la chitine. L'invention se rapporte en outre à des polymères de chitine, des polymères de chitine glucane et des polymères de chitosane que l'on obtient en mettant en oeuvre les procédés de cette invention. L'invention se rapporte également à l'utilisation de polymères de chitine, de copolymères de chitine-glucane ou des polymères de chitosane que l'on obtient en mettant en oeuvre le procédé de la présente invention dans des applications médicale, pharmaceutique, agricole, nutraceutique, alimentaire, textile, cosmétique, industrielle et/ou environnementale.

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