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Title: Consolidated bioprocessing method using thermophilic microorganisms

The present invention is directed to a method of converting biomass to biofuel, and particularly to a consolidated bioprocessing method using a co-culture of thermophilic and extremely thermophilic microorganisms which collectively can ferment the hexose and pentose sugars produced by degradation of cellulose and hemicelluloses at high substrate conversion rates. A culture medium therefor is also provided as well as use of the methods to produce and recover cellulosic ethanol.
Inventors:
Issue Date:
OSTI Identifier:
1237278
Assignee:
UT-BATTELLE, LLC ORNL
Patent Number(s):
9,249,442
Application Number:
13/762,619
Contract Number:
AC05-00OR22725
Resource Relation:
Patent File Date: 2013 Feb 08
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; 59 BASIC BIOLOGICAL SCIENCES

Other works cited in this record:

Thermophilic ethanologenesis: future prospects for second-generation bioethanol production
journal, July 2009

Metabolic engineering of a thermophilic bacterium to produce ethanol at high yield
journal, September 2008
  • Shaw, A. J.; Podkaminer, K. K.; Desai, S. G.
  • Proceedings of the National Academy of Sciences, Vol. 105, Issue 37, p. 13769-13774
  • DOI: 10.1073/pnas.0801266105

Microbial Cellulose Utilization: Fundamentals and Biotechnology
journal, September 2002
  • Lynd, L. R.; Weimer, P. J.; van Zyl, W. H.
  • Microbiology and Molecular Biology Reviews, Vol. 66, Issue 3, p. 506-577
  • DOI: 10.1128/MMBR.66.3.506-577.2002

Transcriptomic analysis of Clostridium thermocellum ATCC 27405 cellulose fermentation
journal, January 2011
  • Raman, Babu; McKeown, Catherine K; Rodriguez, Miguel
  • BMC Microbiology, Vol. 11, Issue 1, Article No. 134
  • DOI: 10.1186/1471-2180-11-134

Extremely thermophilic microorganisms for biomass conversion status and prospects
journal, June 2008
  • Blumer-Schuette, Sara E.; Kataeva, Irina; Westpheling, Janet
  • Current Opinion in Biotechnology, Vol. 19, Issue 3, p. 210-217
  • DOI: 10.1016/j.copbio.2008.04.007

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