Graphene facilitates biomethane production from protein derived glycine in anaerobic digestion

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dc.contributor.authorLin, Richen
dc.contributor.authorDeng, Chen
dc.contributor.authorCheng, Jun
dc.contributor.authorXia, Ao
dc.contributor.authorLens, Piet N. L.
dc.contributor.authorJackson, Stephen A.
dc.contributor.authorDobson, Alan D. W.
dc.contributor.authorMurphy, Jerry D.
dc.contributor.funderHorizon 2020en
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderNational Key Research and Development Program, China
dc.contributor.funderZhejiang Provincial Key Research and Development Program, China
dc.contributor.funderErvia, Ireland
dc.contributor.funderGas Networks Ireland
dc.contributor.funderNational Science Foundation for Young Scientists of China
dc.date.accessioned2018-12-10T17:35:22Z
dc.date.available2018-12-10T17:35:22Z
dc.date.issued2018-11-22
dc.date.updated2018-11-29T09:55:12Z
dc.description.abstractInterspecies electron transfer is a fundamental factor determining the efficiency of anaerobic digestion (AD), which involves syntrophy between fermentative bacteria and methanogens. Direct interspecies electron transfer (DIET) induced by conductive materials can optimize this process offering a significant improvement over indirect electron transfer. Herein, conductive graphene was applied in the AD of protein-derived glycine to establish DIET. The electron-producing reaction via DIET is thermodynamically more favorable and exhibits a more negative Gibbs free energy value (−60.0 kJ/mol) than indirect hydrogen transfer (−33.4 kJ/mol). The Gompertz model indicated that the kinetic parameters exhibited linear correlations with graphene addition from 0.25 to 1.0 g/L, leading to the highest increase in peak biomethane production rate of 28%. Sedimentibacter (7.8% in abundance) and archaea Methanobacterium (71.1%) and Methanosarcina (11.3%) might be responsible for DIET. This research can open up DIET to a range of protein-rich substrates, such as algae.en
dc.description.sponsorshipScience Foundation Ireland (Grant Number 16/SP/3829); National Key Research and Development Program, China (2016YFE0117900); Zhejiang Provincial Key Research and Development Program, China (2017C04001); Ervia, Ireland and Gas Networks Ireland (Gas Innovation Group); National Science Foundation for Young Scientists of China (Grant No. 51606021)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationLin, R., Deng, C., Cheng, J., Xia, A., Lens, P. N. L., Jackson, S. A., Dobson, A. D. W. and Murphy, J. D. (2018) 'Graphene facilitates biomethane production from protein derived glycine in anaerobic digestion', iScience. 10, pp. 158-170. doi:10.1016/j.isci.2018.11.030en
dc.identifier.doi10.1016/j.isci.2018.11.030
dc.identifier.endpage170en
dc.identifier.issn2589-0042
dc.identifier.journaltitleiScienceen
dc.identifier.startpage158en
dc.identifier.urihttps://hdl.handle.net/10468/7195
dc.identifier.volume10en
dc.language.isoenen
dc.publisherElsevier B.V.en
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.rights© 2018, the Authors. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)en
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectGrapheneen
dc.subjectGlycineen
dc.subjectBiomethaneen
dc.subjectInterspecies electron transferen
dc.titleGraphene facilitates biomethane production from protein derived glycine in anaerobic digestionen
dc.typeArticle (peer-reviewed)en
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