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Comparison of xylose fermentation by two high-performance engineered strains of Saccharomyces cerevisiae

Journal Article · · Biotechnology Reports (Online)
 [1];  [2];  [2];  [3];  [4];  [5]
  1. Univ. of California, Berkeley, CA (United States). Dept. of Molecular and Cell Biology; DOE/OSTI
  2. Univ. of California, Berkeley, CA (United States). Dept. of Molecular and Cell Biology
  3. Univ. of Illinois at Urbana-Champaign, IL (United States). Inst. for Genomic Biology
  4. Univ. of Illinois at Urbana-Champaign, IL (United States). Inst. for Genomic Biology; Univ. of Illinois at Urbana-Champaign, IL (United States). Dept. of Food and Science and Human Nutrition
  5. Univ. of California, Berkeley, CA (United States). Dept. of Molecular and Cell Biology; Univ. of California, Berkeley, CA (United States). Dept. of Chemistry; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Physical Bioscience Division
Economical biofuel production from plant biomass requires the conversion of both cellulose and hemicellulose in the plant cell wall. The best industrial fermentation organism, the yeast Saccharomyces cerevisiae, has been developed to utilize xylose by heterologously expressing either a xylose reductase/ xylitol dehydrogenase (XR/XDH) pathway or a xylose isomerase (XI) pathway. Although it has been proposed that the optimal means for fermenting xylose into biofuels would use XI instead of the XR/XDH pathway, no clear comparison of the best publicly-available yeast strains engineered to use XR/XDH or XI has been published. We therefore compared two of the best-performing engineered yeast strains in the public domain—one using the XR/XDH pathway and another using XI—in anaerobic xylose fermentations. We find that, regardless of conditions, the strain using XR/XDH has substantially higher productivity compared to the XI strain. By contrast, the XI strain has better yields in nearly all conditions tested.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
Energy Biosciences Institute; USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1629588
Journal Information:
Biotechnology Reports (Online), Journal Name: Biotechnology Reports (Online) Journal Issue: C Vol. 9; ISSN 2215-017X
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (14)

Overcoming the thermodynamic equilibrium of an isomerization reaction through oxidoreductive reactions for biotransformation journal March 2019
Unraveling the genetic basis of xylose consumption in engineered Saccharomyces cerevisiae strains journal December 2016
Engineered Saccharomyces cerevisiae for lignocellulosic valorization: a review and perspectives on bioethanol production journal January 2020
Production of fuels and chemicals from xylose by engineered Saccharomyces cerevisiae: a review and perspective journal May 2017
Xylose utilization stimulates mitochondrial production of isobutanol and 2-methyl-1-butanol in Saccharomyces cerevisiae journal September 2019
Systematic improvement of isobutanol production from d-xylose in engineered Saccharomyces cerevisiae journal October 2019
Rewired cellular signaling coordinates sugar and hypoxic responses for anaerobic xylose fermentation in yeast journal March 2019
RNAi assisted genome evolution unveils yeast mutants with improved xylose utilization journal March 2018
The yeasts of the genus Spathaspora : potential candidates for second-generation biofuel production: Spathaspora yeasts as candidates for 2G bioethanol production journal October 2017
From agro-industrial wastes to single cell oils: a step towards prospective biorefinery journal April 2018
Bioethanol production from rice hull and evaluation of the final solid residue journal February 2018
Association of improved oxidative stress tolerance and alleviation of glucose repression with superior xylose-utilization capability by a natural isolate of Saccharomyces cerevisiae journal February 2018
Xylose fermentation efficiency of industrial Saccharomyces cerevisiae yeast with separate or combined xylose reductase/xylitol dehydrogenase and xylose isomerase pathways journal January 2019
Second-Generation Bioethanol Production through a Simultaneous Saccharification-Fermentation Process Using Kluyveromyces Marxianus Thermotolerant Yeast book November 2018

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