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Title: Adjusting the pH of a pretreatment solution using carbon dioxide useful for integrating saccharification and fermentation

Abstract

The present invention provides for a method of fermenting or saccharifying a biomass comprising: (a) (i) contacting a biomass comprising a polysaccharide, and an ionic liquid (IL) to form a first solution, or (ii) providing the first solution comprising the biomass and the IL, (b) contacting the first solution and carbon dioxide such that the first solution results in a lower pH, (c) introducing (i) an enzyme capable of enzymatically to breakdown at least one bond in the polysaccharide or a breakdown product of the polysaccharide, and/or (ii) a microorganism that capable of producing the enzyme and/or fermenting the polysaccharide or a breakdown product of the polysaccharide, such that the polysaccharide is at least partially broken down and the first solution is transformed into a second solution.

Inventors:
; ; ;
Issue Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1771635
Patent Number(s):
10837038
Application Number:
15/539,614
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
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 {
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08B - POLYSACCHARIDES
DOE Contract Number:  
AC02-05CH11231
Resource Type:
Patent
Resource Relation:
Patent File Date: 12/23/2015
Country of Publication:
United States
Language:
English

Citation Formats

Sun, Jian, Shi, Jian, Simmons, Blake A., and Singh, Seema. Adjusting the pH of a pretreatment solution using carbon dioxide useful for integrating saccharification and fermentation. United States: N. p., 2020. Web.
Sun, Jian, Shi, Jian, Simmons, Blake A., & Singh, Seema. Adjusting the pH of a pretreatment solution using carbon dioxide useful for integrating saccharification and fermentation. United States.
Sun, Jian, Shi, Jian, Simmons, Blake A., and Singh, Seema. Tue . "Adjusting the pH of a pretreatment solution using carbon dioxide useful for integrating saccharification and fermentation". United States. https://www.osti.gov/servlets/purl/1771635.
@article{osti_1771635,
title = {Adjusting the pH of a pretreatment solution using carbon dioxide useful for integrating saccharification and fermentation},
author = {Sun, Jian and Shi, Jian and Simmons, Blake A. and Singh, Seema},
abstractNote = {The present invention provides for a method of fermenting or saccharifying a biomass comprising: (a) (i) contacting a biomass comprising a polysaccharide, and an ionic liquid (IL) to form a first solution, or (ii) providing the first solution comprising the biomass and the IL, (b) contacting the first solution and carbon dioxide such that the first solution results in a lower pH, (c) introducing (i) an enzyme capable of enzymatically to breakdown at least one bond in the polysaccharide or a breakdown product of the polysaccharide, and/or (ii) a microorganism that capable of producing the enzyme and/or fermenting the polysaccharide or a breakdown product of the polysaccharide, such that the polysaccharide is at least partially broken down and the first solution is transformed into a second solution.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {11}
}

Works referenced in this record:

An auto-inducible mechanism for ionic liquid resistance in microbial biofuel production
journal, March 2014


Evaluation of Toxicity and Biodegradability of Cholinium Amino Acids Ionic Liquids
journal, March 2013


Efficient biomass pretreatment using ionic liquids derived from lignin and hemicellulose
journal, August 2014


Porous Inorganic Membranes for CO2 Capture: Present and Prospects
journal, November 2013


Design of Cellulose Dissolving Ionic Liquids Inspired by Nature
journal, January 2012


Exploring fungal activity in the presence of ionic liquids
journal, January 2009


Understanding the role of water during ionic liquid pretreatment of lignocellulose: co-solvent or anti-solvent?
journal, January 2014


Cholinium carboxylate ionic liquids for pretreatment of lignocellulosic materials to enhance subsequent enzymatic saccharification
journal, February 2013


Cholinium-based Supported Ionic Liquid Membranes: A Sustainable Route for Carbon Dioxide Separation
journal, October 2013


CO2 capture and activation by superbase/polyethylene glycol and its subsequent conversion
journal, January 2011


Impact of mixed feedstocks and feedstock densification on ionic liquid pretreatment efficiency
journal, January 2013


Gas-Expanded Liquids
journal, June 2007


Coagulation of Chitin and Cellulose from 1-Ethyl-3-methylimidazolium Acetate Ionic-Liquid Solutions Using Carbon Dioxide
journal, October 2013


Development of a Native Escherichia coli Induction System for Ionic Liquid Tolerance
journal, July 2014


Ionic liquid processing of cellulose
journal, January 2012


Can biofuels finally take center stage?
journal, July 2006


Sustainable bioenergy production from marginal lands in the US Midwest
journal, January 2013


CO 2 Mass Transfer Induced through an Airlift Loop by a Microbubble Cloud Generated by Fluidic Oscillation
journal, July 2011

  • Al-Mashhadani, Mahmood K. H.; Bandulasena, H. C. Hemaka; Zimmerman, William B.
  • Industrial & Engineering Chemistry Research, Vol. 51, Issue 4
  • https://doi.org/10.1021/ie200960v

Scale-up and evaluation of high solid ionic liquid pretreatment and enzymatic hydrolysis of switchgrass
journal, January 2013


Bio ionic liquids: room temperature ionic liquids composed wholly of biomaterials
journal, January 2007


Applications of ionic liquids in the chemical industry
journal, January 2008


Ionic liquids: a pathway to environmental acceptability
journal, January 2011


pH Control of Ionic Liquids with Carbon Dioxide and Water: 1-Ethyl-3-methylimidazolium Acetate
journal, January 2012


Continuous pretreatment of sugarcane bagasse at high loading in an ionic liquid using a twin-screw extruder
journal, January 2013


Designing Small Molecules for Biodegradability
journal, June 2007


Carbon Dioxide in Biomass Processing: Contributions to the Green Biorefinery Concept
journal, November 2014


Understanding pretreatment efficacy of four cholinium and imidazolium ionic liquids by chemistry and computation
journal, January 2014