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

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dc.contributor.author Lin, Richen
dc.contributor.author Deng, Chen
dc.contributor.author Cheng, Jun
dc.contributor.author Murphy, Jerry D.
dc.date.accessioned 2020-02-11T16:45:19Z
dc.date.available 2020-02-11T16:45:19Z
dc.date.issued 2019-12-24
dc.identifier.citation Lin, 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.2019.12.106 en
dc.identifier.volume 150 en
dc.identifier.startpage 23 en
dc.identifier.endpage 30 en
dc.identifier.issn 0960-1481
dc.identifier.uri http://hdl.handle.net/10468/9635
dc.identifier.doi 10.1016/j.renene.2019.12.106 en
dc.description.abstract Biomass 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.sponsorship Environmental 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.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Elsevier en
dc.relation.uri http://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.uri https://creativecommons.org/licenses/by-nc-nd/4.0/ en
dc.subject Furfural en
dc.subject Hydrogen fermentation en
dc.subject IC50 en
dc.subject Aldehydes en
dc.subject Cell proliferation en
dc.subject Cytology en
dc.subject Fermentation en
dc.subject Furfural en
dc.subject Metabolism en
dc.subject Hydrogen production en
dc.subject Bacteria (microorganisms) en
dc.subject Enterobacter aerogenes en
dc.title Low concentrations of furfural facilitate biohydrogen production in dark fermentation using Enterobacter aerogenes en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Richen Lin, MaREI Centre, Environmental Research Institute, University College Cork, Cork, Ireland. +353-21-490-3000 Email: richen.lin@ucc.ie en
dc.internal.availability Full text available en
dc.check.info Access to this article is restricted until 24 months after publication by request of the publisher. en
dc.check.date 2021-12-24
dc.date.updated 2020-02-11T16:26:31Z
dc.description.version Accepted Version en
dc.internal.rssid 502279371
dc.contributor.funder Horizon 2020 en
dc.contributor.funder Environmental Protection Agency en
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder National Key Research and Development Program of China en
dc.contributor.funder Zhejiang Provincial key research and development program en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Renewable Energy en
dc.internal.copyrightchecked Yes
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress richen.lin@ucc.ie en
dc.internal.IRISemailaddress chen.deng@ucc.ie en
dc.internal.IRISemailaddress jerry.murphy@ucc.ie en
dc.relation.project info: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/DIET en
dc.relation.project info: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


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© 2019, Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 licence. Except where otherwise noted, this item's license is described as © 2019, Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 licence.
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