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Enhancement of methane production from 1-hexadecene by additional electron donors

2018-07Journal article Open access
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dc.contributor.authorPaulo, A. M. S.
dc.contributor.authorSalvador, A. F.
dc.contributor.authorAlves, J. I.
dc.contributor.authorCastro, R.
dc.contributor.authorLangenhoff, A. A. M.
dc.contributor.authorStams, A. J. M.
dc.contributor.authorCavaleiro, A. J.
dc.date.accessioned2021-05-25T21:11:03Z
dc.date.available2021-05-25T21:11:03Z
dc.date.issued2018-07
dc.description.abstract1-Hexadecene-contaminated wastewater is produced in oil refineries and can be treated in methanogenic bioreactors, although generally at low conversion rates. In this study, a microbial culture able to degrade 1-hexadecene was enriched, and different stimulation strategies were tested for enhancing 1-hexadecene conversion to methane. Seven and three times faster methane production was obtained in cultures stimulated with yeast extract or lactate, respectively, while cultures amended with crotonate lost the ability to degrade 1-hexadecene. Methane production from 1-hexadecene was not enhanced by the addition of extra hydrogenotrophic methanogens. Bacteria closely related to Syntrophus and Smithella were detected in 1-hexadecene-degrading cultures, but not in the ones amended with crotonate, which suggests the involvement of these bacteria in 1-hexadecene degradation. Genes coding for alkylsuccinate synthase alpha-subunit were detected in cultures degrading 1-hexadecene, indicating that hydrocarbon activation may occur by fumarate addition. These findings are novel and show that methane production from 1-hexadecene is improved by the addition of yeast extract or lactate. These extra electron donors may be considered as a potential bioremediation strategy of oil-contaminated sites with bioenergy generation through methane production.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1111/1751-7915.12886pt_PT
dc.identifier.eid85048401832
dc.identifier.issn1751-7907
dc.identifier.pmid29215212
dc.identifier.urihttp://hdl.handle.net/10400.14/33243
dc.identifier.wos000435946800008
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationCentre of Biological Engineering - University of Minho
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.titleEnhancement of methane production from 1-hexadecene by additional electron donorspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre of Biological Engineering - University of Minho
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FBIO%2F04469%2F2013/PT
oaire.citation.endPage666pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage657pt_PT
oaire.citation.titleMicrobial Biotechnologypt_PT
oaire.citation.volume11pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNamePaulo
person.familyNameSalvador
person.familyNameAlves
person.familyNameCarvalho
person.familyNameLangenhoff
person.familyNameStams
person.familyNameCavaleiro
person.givenNameAna
person.givenNameAndreia
person.givenNameJoana
person.givenNameAna Rita
person.givenNameAlette
person.givenNameAlfons
person.givenNameAna
person.identifier2602145
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person.identifier.orcid0000-0002-9622-007X
person.identifier.orcid0000-0001-7840-6500
person.identifier.orcid0000-0002-7999-4620
person.identifier.ridO-5497-2015
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person.identifier.ridK-2264-2016
person.identifier.ridJ-5795-2012
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person.identifier.scopus-author-id36870530900
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person.identifier.scopus-author-id40261152500
person.identifier.scopus-author-id7004318191
person.identifier.scopus-author-id7005124319
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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