Compositions comprising a GH61 polypeptide having cellulolytic enhancing activity and a liquor and method of using thereof

Patent metadata

Field	Value
Publication number	US-11085061-B2
Application number	US-201916395105-A
Country	US
Kind code	B2
Filing date	Apr 25, 2019
Priority date	Aug 12, 2010
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

The present invention relates to compositions comprising: a polypeptide having cellulolytic enhancing activity and a liquor. The present invention also relates to methods of using the compositions.

First claim

What is claimed is:

1. A method for producing a fermentation product, comprising:
(a) saccharifying a pretreated cellulosic material with an enzyme composition in the presence of a GH61 polypeptide having cellulolytic enhancing activity and a liquor, wherein the combination of the GH61 polypeptide having cellulolytic enhancing activity and the liquor enhances hydrolysis of the pretreated cellulosic material by the enzyme composition compared to the GH61 polypeptide alone or the liquor alone, wherein (i) the liquor is obtained from a material that is the same as the cellulosic material and the treatment conditions used to produce the liquor are different from the conditions used to produce the pretreated cellulosic material, or (ii) the liquor is obtained from a material that is different than the cellulosic material and the treatment conditions used to produce the liquor are the same as or different from the conditions used to produce the pretreated cellulosic material;
(b) fermenting the saccharified cellulosic material with one or more fermenting microorganisms to produce the fermentation product; and
(c) recovering the fermentation product from the fermentation.

2. The method of claim 1 , wherein the liquor is further processed to remove inhibitors of a cellulase, a hemicellulase, or a combination thereof.

3. The method of claim 1 , wherein the liquor is obtained from a lignocellulose material, a hemicellulose material, a lignacious material, monosaccharides of the lignocellulose material, monosaccharides of the hemicellulose material, or a combination thereof.

4. The method of claim 1 , wherein the enzyme composition comprises one or more enzymes selected from the group consisting of a cellulase, a hemicellulase, an esterase, an expansin, a laccase, a ligninolytic enzyme, a pectinase, a peroxidase, a protease, and a swollenin.

5. The method of claim 4 , wherein the cellulase is one or more enzymes selected from the group consisting of an endoglucanase, a cellobiohydrolase, and a beta-glucosidase.

6. The method of claim 4 , wherein the hemicellulase is one or more enzymes selected from the group consisting of a xylanase, an acetyxylan esterase, a feruloyl esterase, an arabinofuranosidase, a xylosidase, and a glucuronidase.

7. The method of claim 1 , wherein steps (a) and (b) are performed simultaneously in a simultaneous saccharification and fermentation.

8. The method of claim 1 , wherein the the fermentation product is an alcohol, an alkane, a cycloalkane, an alkene, an amino acid, a gas, isoprene, a ketone, an organic acid, or polyketide.

9. The method of claim 1 , wherein the liquor optimizes the cellulolytic enhancing activity of a GH61 polypeptide with a GH61 effect of at least 1.05.

10. The method of claim 1 , wherein an effective amount of the liquor to cellulose is about 10 −6 to about 10 g per g of cellulose.

11. The method of claim 1 , wherein the liquor is present in an amount that minimizes inhibition of a cellulase composition of about 1 to about 20% (v/v).

Assignees

• Novozymes Inc
• Novozymes North America Inc

Inventors

• Quinlan Jason
• Xu Feng
• Sweeney Matt
• Higgins Don
• Xu Hui

Classifications

• C12Y302/01021

  Beta-glucosidase (3.2.1.21) · CPC title

• C12P2201/00

  Pretreatment of cellulosic or lignocellulosic material for subsequent enzymatic treatment or hydrolysis · CPC title

• C12P19/02

  Monosaccharides (2-ketogulonic acid C12P7/60) · CPC title

• C12Y302/01004

  Cellulase (3.2.1.4), i.e. endo-1,4-beta-glucanase · CPC title

• C12P19/14 Primary

  produced by the action of a carbohydrase {(EC 3.2.x)}, e.g. by alpha-amylase {, e.g. by cellulase, hemicellulase} · CPC title