Methods for producing fermentation products

Details Methods for producing fermentation products Methods for producing fermentation products

C - Chemistry, Metallurgy

12

P

C12P 7/10 (2006.01) C12P 1/00 (2006.01) C12P 19/14 (2006.01) C12P 19/24 (2006.01) C13K 1/02 (2006.01)

Patent

CA 2692185

The invention relates to methods for producing a fermentation product from a lignocellulose-containing material comprising i) pre-treating lignocellulose-containing material; ii) hydrolysing pre-treated lignocellulose-containing material; iii) fer-menting using a fermenting organism; wherein fermentation is initiated and carried out at: a) a fermentation organism cell count in the range from 10-250x10 10 cells per L fermentation medium; or b) a fermentation organism concentration in the range from 2-90 g dry weight fermenting organism per L fermentation medium.

La présente invention concerne des procédés de production d'un produit de fermentation provenant d'un matériau contenant de la lignocellulose consistant à : i) prétraiter le matériau contenant de la lignocellulose ; ii) hydrolyser le matériau prétraité contenant de la lignocellulose ; iii) fermenter à l'aide d'un organisme de fermentation ; la fermentation étant initiée et effectuée à : a) un nombre de cellules d'organismes de fermentation se trouvant dans une plage comprise entre 10x1010 et 250x1010 cellules par litre de milieu de fermentation ; ou b) une concentration d'organismes de fermentation se trouvant dans une plage comprise entre 2 et 90 g poids sec d'organismes en fermentation par litre de milieu de fermentation.

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