Title: Simultaneous fermentation of biomass-derived sugars to ethanol by a co-culture of an engineered Escherichia coli and Saccharomyces cerevisiae

Journal Article · · Bioresource Technology
 [1];  [2];  [2];  [2]
  1. Univ. of Florida, Gainesville, FL (United States); University of Florida
  2. Univ. of Florida, Gainesville, FL (United States)

Microorganisms ferment xylose at high rate only when glucose concentration in the medium falls below a critical level. Since the specific productivity of product is highest during exponential to early stationary phase of growth, a glucose utilization negative ethanologenic E. coli (strain LW419a) was constructed for high rate of xylose fermentation in combination with Turbo yeast. This co-culture fermented all the released sugars in an acid/enzyme-treated sugar cane bagasse slurry (10% solids) to an ethanol titer of 24.9 ± 0.8 g.L-1 (70 % of the theoretical yield) in <30 h. Ethanol titer increased to 48.6 ± 1.04 g.L-1 (yield, 0.45 g.g-1 sugars) at a solids content of 20% and the highest rate of xylose consumption was 1.58 ± 0.21 g.L–1.h–1. Furthermore, this study demonstrates the potential of a co-culture of strain LW419a and yeast to rapidly ferment all the sugars in pretreated biomass slurries to ethanol at their respective highest rates.

Research Organization:
Univ. of Florida, Gainesville, FL (United States)
Sponsoring Organization:
USDOE; USDOE Office of International Affairs (IA)
Grant/Contract Number:
PI0000031
OSTI ID:
1766299
Journal Information:
Bioresource Technology, Journal Name: Bioresource Technology Journal Issue: 273 Vol. 273; ISSN 0960-8524
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (45)

Effect of organic acids on the growth and fermentation of ethanologenicEscherichia coli LY01 journal January 1999
Effects of Ca(OH)2 treatments (“overliming”) on the composition and toxicity of bagasse hemicellulose hydrolysates journal January 2000
Expression of galP and glk in a Escherichia coli PTS mutant restores glucose transport and increases glycolytic flux to fermentation products
  • Hernández-Montalvo, Verónica; Martínez, Alfredo; Hernández-Chavez, Georgina
  • Biotechnology and Bioengineering, Vol. 83, Issue 6 https://doi.org/10.1002/bit.10702
journal June 2003
Improving product yields on D -glucose in Escherichia coli via knockout of pgi and zwf and feeding of supplemental carbon sources: Improved Product Yields on Glucose in E. coli journal November 2014
Dynamic flux balance modeling of S. cerevisiae and E. coli co-cultures for efficient consumption of glucose/xylose mixtures journal October 2011
An efficient xylose-fermenting recombinant Saccharomyces cerevisiae strain obtained through adaptive evolution and its global transcription profile journal October 2012
Use of catabolite repression mutants for fermentation of sugar mixtures to ethanol journal July 2001
Low salt medium for lactate and ethanol production by recombinant Escherichia coli B journal December 2006
Deletion of methylglyoxal synthase gene (mgsA) increased sugar co-metabolism in ethanol-producing Escherichia coli journal May 2009
Genetic changes that increase 5-hydroxymethyl furfural resistance in ethanol-producing Escherichia coli LY180 journal February 2010
Cofermentation of glucose and xylose with immobilized Pichia stipitis and Saccharomyces cerevisiae journal November 1990
The Accumulation of Glucose 6-Phosphate from Glucose and Its Effect in an Escherichia coli Mutant Lacking Phosphoglucose Isomerase and Glucose 6-Phosphate Dehydrogenase journal December 1968
An in vivo , label-free quick assay for xylose transport in Escherichia coli journal July 2009
Optimizing the saccharification of sugar cane bagasse using dilute phosphoric acid followed by fungal cellulases journal March 2010
Simplified process for ethanol production from sugarcane bagasse using hydrolysate-resistant Escherichia coli strain MM160 journal February 2011
Injection of air into the headspace improves fermentation of phosphoric acid pretreated sugarcane bagasse by Escherichia coli MM170 journal July 2011
Seed train development for the fermentation of bagasse from sweet sorghum and sugarcane using a simplified fermentation process journal January 2013
Fermentation of sweet sorghum derived sugars to butyric acid at high titer and productivity by a moderate thermophile Clostridium thermobutyricum at 50 °C journal December 2015
Techno-economic analysis of ethanol production from sugarcane bagasse using a Liquefaction plus Simultaneous Saccharification and co-Fermentation process journal May 2016
Ethanol production from lignocellulosic hydrolysates using engineered Saccharomyces cerevisiae harboring xylose isomerase-based pathway journal June 2016
Construction of efficient xylose-fermenting Saccharomyces cerevisiae through a synthetic isozyme system of xylose reductase from Scheffersomyces stipitis journal October 2017
Phosphoric acid based pretreatment of switchgrass and fermentation of entire slurry to ethanol using a simplified process journal March 2018
The transport and mediation mechanisms of the common sugars in Escherichia coli journal September 2014
Evolutionary engineering of mixed-sugar utilization by a xylose-fermenting strain journal July 2005
Global Gene Expression Differences Associated with Changes in Glycolytic Flux and Growth Rate in Escherichia coli during the Fermentation of Glucose and Xylose journal February 2002
Efficient Ethanol Recovery from Yeast Fermentation Broth with Integrated Distillation–Membrane Process journal February 2012
Systematic Approach To Engineer Escherichia coli Pathways for Co-utilization of a Glucose–Xylose Mixture journal July 2013
Inhibitory Activity of Carbonyl Compounds on Alcoholic Fermentation by Saccharomyces cerevisiae journal January 2014
The grand challenge of cellulosic biofuels journal October 2017
The no-SCAR (Scarless Cas9 Assisted Recombineering) system for genome editing in Escherichia coli journal October 2015
Cellulosic ethanol production from AFEX-treated corn stover using Saccharomyces cerevisiae 424A(LNH-ST) journal January 2009
One-step inactivation of chromosomal genes in Escherichia coli K-12 using PCR products journal May 2000
Engineering of yeast hexose transporters to transport D-xylose without inhibition by D-glucose journal March 2014
Glucose consumption in carbohydrate mixtures by phosphotransferase-system mutants of Escherichia coli journal June 2017
Plasmidic Expression of nemA and yafC * Increased Resistance of Ethanologenic Escherichia coli LY180 to Nonvolatile Side Products from Dilute Acid Treatment of Sugarcane Bagasse and Artificial Hydrolysate journal January 2016
Genetically Engineered SaccharomycesYeast Capable of Effective Cofermentation of Glucose and Xylose journal May 1998
Pyruvate Formate Lyase and Acetate Kinase Are Essential for Anaerobic Growth of Escherichia coli on Xylose journal November 2004
How Phosphotransferase System-Related Protein Phosphorylation Regulates Carbohydrate Metabolism in Bacteria journal December 2006
Catabolic regulation analysis of Escherichia coli and its crp, mlc, mgsA, pgi and ptsG mutants journal January 2011
A co-fermentation strategy to consume sugar mixtures effectively journal January 2008
Evaluation of ammonia fibre expansion (AFEX) pretreatment for enzymatic hydrolysis of switchgrass harvested in different seasons and locations journal January 2010
Comparing the fermentation performance of Escherichia coli KO11, Saccharomyces cerevisiae 424A(LNH-ST) and Zymomonas mobilis AX101 for cellulosic ethanol production journal January 2010
Development of a D-xylose fermenting and inhibitor tolerant industrial Saccharomyces cerevisiae strain with high performance in lignocellulose hydrolysates using metabolic and evolutionary engineering journal January 2013
Disruption of the transcription factors Thi2p and Nrm1p alleviates the post-glucose effect on xylose utilization in Saccharomyces cerevisiae journal April 2018
Xylose Fermentation by Saccharomyces cerevisiae: Challenges and Prospects journal February 2016