Improvement of ethanol production from lignocellulose

Details Improvement of ethanol production from lignocellulose Improvement of ethanol production from lignocellulose

C - Chemistry, Metallurgy

12

N

C12N 13/00 (2006.01) C12N 9/42 (2006.01) C12P 7/06 (2006.01) C12P 7/10 (2006.01) C12P 19/14 (2006.01)

Patent

CA 2285312

This invention presents a method of improving enzymatic degradation of lignocellulose, as in the production of ethanol from lignocellulosic material, through the use of ultrasonic treatment. The invention shows that ultrasonic treatment reduces cellulase requirements by 1/3 to 1/2. With the cost of enzymes being a major problem in the cost-effective production of ethanol from lignocellulosic material, this invention presents a significant improvement over presently available methods.

L'invention décrit un procédé pour améliorer la dégradation enzymatique de la lignocellulose, telle qu'elle est réalisée dans la production d'éthanol à partir de matériau lignocellulosique, par l'application d'un traitement ultrasonique. L'invention montre que le traitement ultrasonique réduit les besoins en cellulase de 1/3 à 1/2. Etant donné que le coût des enzymes représente un problème majeur pour la rentabilité de la production d'éthanol à partir de matériau lignocellulosique, l'invention représente une amélioration notable par rapport aux procédés actuellement disponibles.

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