Enhanced dark hydrogen fermentation of Enterobacter aerogenes/HoxEFUYH with carbon cloth

dc.check.date2021-01-04
dc.check.infoAccess to this article is restricted until 24 months after publication at the request of the publisheren
dc.contributor.authorCheng, Jun
dc.contributor.authorLi, Hui
dc.contributor.authorZhang, Jiabei
dc.contributor.authorDing, Lingkan
dc.contributor.authorYe, Qing
dc.contributor.authorLin, Richen
dc.contributor.funderState Key Laboratory of Protein and Plant Gene Researchen
dc.contributor.funderScience and Technology Department of Zhejiang Provinceen
dc.contributor.funderH2020 Marie Skłodowska-Curie Actionsen
dc.date.accessioned2019-01-18T12:20:39Z
dc.date.available2019-01-18T12:20:39Z
dc.date.issued2019-01-04
dc.description.abstractLong-range extracellular electron transfer through microbial nanowires is critical for efficient bacterial behaviors. The application of carbon cloth on the dark hydrogen fermentation using transgenic Enterobacter aerogenes (E. aerogenes/HoxEFUYH) was first proposed to enhance hydrogen production from glucose. Scanning electron microscopy images showed that the microbial nanowires between E. aerogenes/HoxEFUYH cells almost vanished due to the presence of carbon cloth. Approximately 59.1% of microorganisms concentrated in biofilms on the surface of carbon cloth, which probably promoted the intercellular electron transfer. The results from Fourier transform infrared spectra and Excitation Emission Matrix spectra indicated that carbon cloth biofilms primarily included polysaccharide and protein. Moreover, the fluorophore of biofilms (88.1%) was much higher than that of supernatant (11.9%). The analysis of soluble metabolic degradation byproducts revealed that carbon cloth selectively enhanced the acetate pathway (C6H12O6+2H2O→2CH3COOH+2CO2+4H2), but weakened the ethanol pathway (C6H12O6→2C2H5OH+2CO2). With 1.0 g/L carbon cloth, the hydrogen yield increased by 26.6% to 242 mL/g, and the corresponding peak hydrogen production rate increased by 60.3%.en
dc.description.sponsorshipState Key Laboratory of Protein and Plant Gene Research (National Key Research andDevelopment Program-China (2016YFE0117900)); Science and Technology Department of Zhejiang Province (Zhejiang Provincial Key Research and Development Program-China (2017C0400));en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationCheng, J., Li, H., Zhang, J., Ding, L., Ye, Q. and Lin, R. (2019) 'Enhanced dark hydrogen fermentation of Enterobacter aerogenes/HoxEFUYH with carbon cloth', International Journal of Hydrogen Energy, In Press, doi: 10.1016/j.ijhydene.2018.12.080en
dc.identifier.doi10.1016/j.ijhydene.2018.12.080
dc.identifier.endpage32en
dc.identifier.issn0360-3199
dc.identifier.journaltitleInternational Journal of Hydrogen Energyen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/7317
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.urihttp://www.sciencedirect.com/science/article/pii/S0360319918340448
dc.rights© 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 licenseen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectElectro-conductive carbon clothen
dc.subjectHydrogen fermentationen
dc.subjectTransgenic Enterobacter aerogenesen
dc.titleEnhanced dark hydrogen fermentation of Enterobacter aerogenes/HoxEFUYH with carbon clothen
dc.typeArticle (peer-reviewed)en
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