Enzymatic treatment under vacuum of lignocellulosic materials

Details Enzymatic treatment under vacuum of lignocellulosic materials Enzymatic treatment under vacuum of lignocellulosic materials

C - Chemistry, Metallurgy

12

P

C12P 19/02 (2006.01) C12N 9/42 (2006.01) C12P 7/10 (2006.01) C12P 19/00 (2006.01)

Patent

CA 2701862

A method for treating lignocellulosic feedstock plant materials to release fermentable sugars is disclosed. More specifically, an enzymatic hydrolysis process for treating the materials performed under vacuum and producing a sugar rich process stream comprising reduced amounts of volatile sugar/fermentation inhibiting compounds such as furfural and acetic acid. The sugar rich stream may subsequently be subjected to fermentation to produce biofuels such as ethanol and other chemicals.

L'invention porte sur un procédé de traitement d'une charge de matières végétales lignocellulosiques pour libérer des sucres fermentescibles. Plus précisément, l'invention porte sur un procédé d'hydrolyse enzymatique pour le traitement des matières effectué sous vide et pour produire un flux de traitement riche en sucre comportant des quantités réduites de sucre/composés inhibiteurs volatils de fermentation tels que le furfural et l'acide acétique. Le flux riche en sucre peut par la suite être soumis à une fermentation pour produire des biocarburants tels que l'éthanol et autres produits chimiques.

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