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Hybrid thermochemical processing: fermentation of pyrolysis-derived bio-oil

Hybrid thermochemical processing: fermentation of pyrolysis-derived bio-oil Thermochemical processing of biomass by fast pyrolysis provides a nonenzymatic route for depolymerization of biomass into sugars that can be used for the biological production of fuels and chemicals. Fermentative utilization of this bio-oil faces two formidable challenges. First is the fact that most bio-oil-associated sugars are present in the anhydrous form. Metabolic engineering has enabled utilization of the main anhydrosugar, levoglucosan, in workhorse biocatalysts. The second challenge is the fact that bio-oil is rich in microbial inhibitors. Collection of bio-oil in distinct fractions, detoxification of bio-oil prior to fermentation, and increased robustness of the biocatalyst have all proven effective methods for addressing this inhibition. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Microbiology and Biotechnology Springer Journals

Hybrid thermochemical processing: fermentation of pyrolysis-derived bio-oil

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References (36)

Publisher
Springer Journals
Copyright
Copyright © 2011 by Springer-Verlag
Subject
Chemistry; Microbiology; Biotechnology; Microbial Genetics and Genomics
ISSN
0175-7598
eISSN
1432-0614
DOI
10.1007/s00253-011-3495-9
pmid
21789490
Publisher site
See Article on Publisher Site

Abstract

Thermochemical processing of biomass by fast pyrolysis provides a nonenzymatic route for depolymerization of biomass into sugars that can be used for the biological production of fuels and chemicals. Fermentative utilization of this bio-oil faces two formidable challenges. First is the fact that most bio-oil-associated sugars are present in the anhydrous form. Metabolic engineering has enabled utilization of the main anhydrosugar, levoglucosan, in workhorse biocatalysts. The second challenge is the fact that bio-oil is rich in microbial inhibitors. Collection of bio-oil in distinct fractions, detoxification of bio-oil prior to fermentation, and increased robustness of the biocatalyst have all proven effective methods for addressing this inhibition.

Journal

Applied Microbiology and BiotechnologySpringer Journals

Published: Jul 26, 2011

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