| Literature DB >> 26096579 |
Timothy D Harrington1, Abdelrhman Mohamed1, Vi N Tran1, Saeid Biria1, Mahmoud Gargouri2, Jeong-Jin Park2, David R Gang2, Haluk Beyenal3.
Abstract
The aim of this work was to compare the effects of electrosynthesis on different bacterial species. The effects of neutral red-mediated electrosynthesis on the metabolite profiles of three microorganisms: Escherichia coli, Klebsiella pneumoniae, and Zymomonas mobilis, were measured and compared and contrasted. A statistically comprehensive analysis of neutral red-mediated electrosynthesis is presented using the analysis of end-product profiles, current delivered, and changes in cellular protein expression. K. pneumoniae displayed the most dramatic response to electrosynthesis of the three bacteria, producing 93% more ethanol and 76% more lactate vs. control fermentation with no neutral red and no electron delivery. Z. mobilis showed no response to electrosynthesis except elevated acetate titers. Stoichiometric comparison showed that NAD(+) reduction by neutral red could not account for changes in metabolites during electrosynthesis. Neutral red-mediated electrosynthesis was shown to have multifarious effects on the three species.Entities:
Keywords: Bioelectrochemical system; Electron transfer; Electrosynthesis; Neutral red
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Year: 2015 PMID： 26096579 PMCID： PMC4659424 DOI： 10.1016/j.biortech.2015.06.005
Source DB: PubMed Journal: Bioresour Technol ISSN： 0960-8524 Impact factor: 9.642