Low concentrations of furfural facilitate biohydrogen production in dark fermentation using Enterobacter aerogenes

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dc.contributor.authorLin, Richen
dc.contributor.authorDeng, Chen
dc.contributor.authorCheng, Jun
dc.contributor.authorMurphy, Jerry D.
dc.contributor.funderHorizon 2020en
dc.contributor.funderEnvironmental Protection Agencyen
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderNational Key Research and Development Program of Chinaen
dc.contributor.funderZhejiang Provincial key research and development programen
dc.date.accessioned2020-02-11T16:45:19Z
dc.date.available2020-02-11T16:45:19Z
dc.date.issued2019-12-24
dc.date.updated2020-02-11T16:26:31Z
dc.description.abstractBiomass pretreatments represent a necessary route to overcome the natural physico-chemical barriers of recalcitrant feedstocks. However, current biomass pretreatments generally result in generation of various inhibitors (such as furfural derived from pentose), which could inhibit cell growth and decrease biofuel productivity. This study aims to understand the impact of furfural on hydrogen-producing Enterobacter aerogenes in dark fermentation of glucose. When adding 5 mM furfural in fermentation, hydrogen yield unexpectedly increased to 193.7 mL/g compared to 163.5 mL/g (in the absence of furfural); and the associated peak hydrogen production rate increased by 126%. This phenomenon from a thermodynamic perspective was due to the fact that furfural at a low concentration contributes to hydrogen production. A higher concentration of furfural (30 mM) significantly decreased hydrogen yield to 109.1 mL/g owing to severe cell membrane damage. The indicator of half-maximal inhibitory concentration was calculated as 32.5 mM. A postulated metabolic response of E. aerogenes to furfural is that the degradation of low concentrations of furfural (5 mM) involved a reduction reaction of furfural to hydrogen and furfuryl alcohol. However, a high concentration of furfural (30 mM) caused significant cell disfunction in normal metabolism, causing increased deformation degree in bacterial surface.en
dc.description.sponsorshipEnvironmental Protection Agency, Ireland (EPA 2018-RE-MS-13); Science Foundation Ireland (through MaREI centre for energy, climate and marine under Grant No.12/RC/2302_P2 and16/SP/3829); National Key Research and Development Program of China (2016YFE0117900); Zhejiang Provincial key research and development program-China (2017C04001)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationLin, R., Deng, C., Cheng, J. and Murphy, J. D. (2020) 'Low concentrations of furfural facilitate biohydrogen production in dark fermentation using Enterobacter aerogenes', Renewable Energy, 150, pp. 23-30. doi: 10.1016/j.renene.2019.12.106en
dc.identifier.doi10.1016/j.renene.2019.12.106en
dc.identifier.endpage30en
dc.identifier.issn0960-1481
dc.identifier.journaltitleRenewable Energyen
dc.identifier.startpage23en
dc.identifier.urihttps://hdl.handle.net/10468/9635
dc.identifier.volume150en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::MSCA-IF-EF-ST/797259/EU/Direct Interspecies Electron Transfer in advanced anaerobic digestion system for gaseous transport biofuel production/DIETen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2302/IE/Marine Renewable Energy Ireland (MaREI) - The SFI Centre for Marine Renewable Energy Research/en
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S0960148119319780
dc.rights© 2019, Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 licence.en
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectFurfuralen
dc.subjectHydrogen fermentationen
dc.subjectIC50en
dc.subjectAldehydesen
dc.subjectCell proliferationen
dc.subjectCytologyen
dc.subjectFermentationen
dc.subjectFurfuralen
dc.subjectMetabolismen
dc.subjectHydrogen productionen
dc.subjectBacteria (microorganisms)en
dc.subjectEnterobacter aerogenesen
dc.titleLow concentrations of furfural facilitate biohydrogen production in dark fermentation using Enterobacter aerogenesen
dc.typeArticle (peer-reviewed)en
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