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Effect of selected aldehydes on the growth and fermentation of ethanologenic Escherichia coli.
Of the aldehydes tested, only furfural strongly inhibited ethanol production in vitro, and a comparison with published results for other microorganisms indicates that LY01 is equivalent or more resistant than other biocatalysts to the aaldehydes examined in this study.
Genetic improvement of Escherichia coli for ethanol production: chromosomal integration of Zymomonas mobilis genes encoding pyruvate decarboxylase and alcohol dehydrogenase II
These mutants were functionally equivalent to the previous plasmid-based strains for the fermentation of xylose and glucose to ethanol and exceeded theoretical limits on the basis of added sugars because of the additional production of ethanol from the catabolism of complex nutrients.
Effect of organic acids on the growth and fermentation of ethanologenic Escherichia coli LY01.
Results are consistent with the hypothesis that both aliphatic and mononuclear organic acids inhibit growth and ethanol production in LY01 by collapsing ion gradients and increasing internal anion concentrations.
Adaptation of membrane lipids to alcohols
  • L. Ingram
  • Medicine, Biology
    Journal of bacteriology
  • 1 February 1976
The results indicate that Escherichia coli cells radically change their fatty acid composition when grown in the presence of alcohols, which represents an adaptive membrane alteration compensating for the direct physicochemical interaction ofcohols with the membrane.
Production of Optically Pure d-Lactic Acid in Mineral Salts Medium by Metabolically Engineered Escherichia coli W3110
ABSTRACT The resistance of polylactide to biodegradation and the physical properties of this polymer can be controlled by adjusting the ratio of l-lactic acid to d-lactic acid. Although the largest
Isolation and characterization of ethanol-tolerant mutants of Escherichia coli KO11 for fuel ethanol production
Genetically engineered Escherichia coli KO11 is capable of efficiently producing ethanol from all sugar constituents of lignocellulose but lacks the high ethanol tolerance of yeasts currently used
Isolation and Characterization of Acid-Tolerant, Thermophilic Bacteria for Effective Fermentation of Biomass-Derived Sugars to Lactic Acid
These new B. coagulans isolates have the potential to reduce the cost of SSF by minimizing the amount of fungal cellulases, a significant cost component in the use of biomass as a renewable resource, for the production of fuels and chemicals.
Combining metabolic engineering and metabolic evolution to develop nonrecombinant strains of Escherichia coli C that produce succinate and malate
Derivatives of Escherichia coli C were engineered to produce primarily succinate or malate in mineral salts media using simple fermentations (anaerobic stirred batch with pH control) without the
Silencing of NADPH-Dependent Oxidoreductase Genes (yqhD and dkgA) in Furfural-Resistant Ethanologenic Escherichia coli
Results suggest that the process of reducing furfural by using an enzyme with a low Km for NADPH rather than a direct inhibitory action is the primary cause for growth inhibition by low concentrations offurfural.
Detoxification of Dilute Acid Hydrolysates of Lignocellulose with Lime
Using ethanologenic Escherichia coli LY01 as the biocatalyst, the results indicate that the optimal lime addition for detoxification varies and depends on the concentration of mineral acids and organic acids in each hydrolysate.