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Title: Methods for degrading lignocellulosic materials

Abstract

The present invention relates to methods for degrading a lignocellulosic material, comprising: treating the lignocellulosic material with an effective amount of one or more cellulolytic enzymes in the presence of at least one surfactant selected from the group consisting of a secondary alcohol ethoxylate, fatty alcohol ethoxylate, nonylphenol ethoxylate, tridecyl ethoxylate, and polyoxyethylene ether, wherein the presence of the surfactant increases the degradation of lignocellulosic material compared to the absence of the surfactant. The present invention also relates to methods for producing an organic substance, comprising: (a) saccharifying a lignocellulosic material with an effective amount of one or more cellulolytic enzymes in the presence of at least one surfactant selected from the group consisting of a secondary alcohol ethoxylate, fatty alcohol ethoxylate, nonylphenol ethoxylate, tridecyl ethoxylate, and polyoxyethylene ether, wherein the presence of the surfactant increases the degradation of lignocellulosic material compared to the absence of the surfactant; (b) fermenting the saccharified lignocellulosic material of step (a) with one or more fermentating microoganisms; and (c) recovering the organic substance from the fermentation.

Inventors:
 [1];  [1];  [1]
  1. Davis, CA
Issue Date:
Research Org.:
Midwest Research Institute, Kansas City, MO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
985685
Patent Number(s):
7354743
Application Number:
11/036,871
Assignee:
Novozymes, Inc. (Davis, CA)
Patent Classifications (CPCs):
C - CHEMISTRY C12 - BIOCHEMISTRY C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE {
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
DOE Contract Number:  
AC36-99GO10337
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 59 BASIC BIOLOGICAL SCIENCES

Citation Formats

Vlasenko, Elena, Cherry, Joel, and Xu, Feng. Methods for degrading lignocellulosic materials. United States: N. p., 2008. Web.
Vlasenko, Elena, Cherry, Joel, & Xu, Feng. Methods for degrading lignocellulosic materials. United States.
Vlasenko, Elena, Cherry, Joel, and Xu, Feng. Tue . "Methods for degrading lignocellulosic materials". United States. https://www.osti.gov/servlets/purl/985685.
@article{osti_985685,
title = {Methods for degrading lignocellulosic materials},
author = {Vlasenko, Elena and Cherry, Joel and Xu, Feng},
abstractNote = {The present invention relates to methods for degrading a lignocellulosic material, comprising: treating the lignocellulosic material with an effective amount of one or more cellulolytic enzymes in the presence of at least one surfactant selected from the group consisting of a secondary alcohol ethoxylate, fatty alcohol ethoxylate, nonylphenol ethoxylate, tridecyl ethoxylate, and polyoxyethylene ether, wherein the presence of the surfactant increases the degradation of lignocellulosic material compared to the absence of the surfactant. The present invention also relates to methods for producing an organic substance, comprising: (a) saccharifying a lignocellulosic material with an effective amount of one or more cellulolytic enzymes in the presence of at least one surfactant selected from the group consisting of a secondary alcohol ethoxylate, fatty alcohol ethoxylate, nonylphenol ethoxylate, tridecyl ethoxylate, and polyoxyethylene ether, wherein the presence of the surfactant increases the degradation of lignocellulosic material compared to the absence of the surfactant; (b) fermenting the saccharified lignocellulosic material of step (a) with one or more fermentating microoganisms; and (c) recovering the organic substance from the fermentation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {4}
}

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Works referenced in this record:

Biodegradation of Nonionic Surfactants and Effects of Oxidative Pretreatment
journal, June 1996


Effects of nonionic surfactant on enzymatic hydrolysis of used newspaper
journal, January 1992


Pretreatment of bagasse by nonionic surfactant for the enzymatic hydrolysis
journal, January 1994