Microbial Community Pathways for the Production of Volatile Fatty Acids From CO2 and Electricity

This study aims at elucidating the metabolic pathways involved in the production of volatile fatty acids from CO2 and electricity. Two bioelectrochemical systems (BES) were fed with pure CO2 (cells A and B). The cathode potential was first poised at −574 mV vs. standard hydrogen electrode (SHE) and...

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Autores: Wenzel, Jorge, Fiset, Erika, Batlle Vilanova, Pau, Cabezas, Ángela, Etchebehere, Claudia, Balaguer i Condom, Maria Dolors, Colprim Galceran, Jesús, Puig Broch, Sebastià
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/16797
Acceso en línea:http://hdl.handle.net/10256/16797
Access Level:acceso abierto
Palabra clave:Bioelectroquímica
Bioelectrochemistry
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spelling Microbial Community Pathways for the Production of Volatile Fatty Acids From CO2 and ElectricityWenzel, JorgeFiset, ErikaBatlle Vilanova, PauCabezas, ÁngelaEtchebehere, ClaudiaBalaguer i Condom, Maria DolorsColprim Galceran, JesúsPuig Broch, SebastiàBioelectroquímicaBioelectrochemistryThis study aims at elucidating the metabolic pathways involved in the production of volatile fatty acids from CO2 and electricity. Two bioelectrochemical systems (BES) were fed with pure CO2 (cells A and B). The cathode potential was first poised at −574 mV vs. standard hydrogen electrode (SHE) and then at −756 mV vs. SHE in order to ensure the required reducing power. Despite applying similar operation conditions to both BES, they responded differently. A mixture of organic compounds (1.87 mM acetic acid, 2.30 mM formic acid, 0.43 mM propionic acid, 0.15 mM butyric acid, 0.55 mM valeric acid, and 0.62 mM ethanol) was produced in cell A while mainly 1.82 mM acetic acid and 0.23 mM propionic acid were produced in cell B. The microbial community analysis performed by 16S rRNA gene pyrosequencing showed a predominance of Clostridium sp. and Serratia sp. in cell A whereas Burkholderia sp. and Xanthobacter sp. predominated in cell B. The coexistence of three metabolic pathways involved in carbon fixation was predicted. Calvin cycle was predicted in both cells during the whole experiment while Wood-Ljungdahl and Arnon-Buchanan pathways predominated in the period with higher coulombic efficiency. Metabolic pathways which transform organic acids into anabolic intermediaries were also predicted, indicating the occurrence of complex trophic interactions. These results further complicate the understanding of these mixed culture microbial processes but also expand the expectation of compounds that could potentially be produced with this technologyThis research was financially supported by the Spanish Government (CTQ 2014-53718-R) and the National Agency of Research and Innovation of Uruguay (ANII; FSE6437 and FSE102488). JW was funded by the ANII-PhD grant (SNB). LEQUIA has been recognized as a consolidated research group by the Catalan Government under the code 2014-SGR-1168Frontiers MediaMinisterio de Economía y Competitividad (Espanya)2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionpeer-reviewedapplication/pdfhttp://hdl.handle.net/10256/16797http://hdl.handle.net/10256/16797Frontiers in Energy Research, 2018, vol. 6, p. art.15Articles publicats (D-EQATA)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)Inglésinfo:eu-repo/semantics/altIdentifier/doi/10.3389/fenrg.2018.00015info:eu-repo/semantics/altIdentifier/eissn/2296-598Xinfo:eu-repo/grantAgreement/MINECO//CTQ2014-53718-RAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:10256/167972026-05-29T05:05:01Z
dc.title.none.fl_str_mv Microbial Community Pathways for the Production of Volatile Fatty Acids From CO2 and Electricity
title Microbial Community Pathways for the Production of Volatile Fatty Acids From CO2 and Electricity
spellingShingle Microbial Community Pathways for the Production of Volatile Fatty Acids From CO2 and Electricity
Wenzel, Jorge
Bioelectroquímica
Bioelectrochemistry
title_short Microbial Community Pathways for the Production of Volatile Fatty Acids From CO2 and Electricity
title_full Microbial Community Pathways for the Production of Volatile Fatty Acids From CO2 and Electricity
title_fullStr Microbial Community Pathways for the Production of Volatile Fatty Acids From CO2 and Electricity
title_full_unstemmed Microbial Community Pathways for the Production of Volatile Fatty Acids From CO2 and Electricity
title_sort Microbial Community Pathways for the Production of Volatile Fatty Acids From CO2 and Electricity
dc.creator.none.fl_str_mv Wenzel, Jorge
Fiset, Erika
Batlle Vilanova, Pau
Cabezas, Ángela
Etchebehere, Claudia
Balaguer i Condom, Maria Dolors
Colprim Galceran, Jesús
Puig Broch, Sebastià
author Wenzel, Jorge
author_facet Wenzel, Jorge
Fiset, Erika
Batlle Vilanova, Pau
Cabezas, Ángela
Etchebehere, Claudia
Balaguer i Condom, Maria Dolors
Colprim Galceran, Jesús
Puig Broch, Sebastià
author_role author
author2 Fiset, Erika
Batlle Vilanova, Pau
Cabezas, Ángela
Etchebehere, Claudia
Balaguer i Condom, Maria Dolors
Colprim Galceran, Jesús
Puig Broch, Sebastià
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (Espanya)
dc.subject.none.fl_str_mv Bioelectroquímica
Bioelectrochemistry
topic Bioelectroquímica
Bioelectrochemistry
description This study aims at elucidating the metabolic pathways involved in the production of volatile fatty acids from CO2 and electricity. Two bioelectrochemical systems (BES) were fed with pure CO2 (cells A and B). The cathode potential was first poised at −574 mV vs. standard hydrogen electrode (SHE) and then at −756 mV vs. SHE in order to ensure the required reducing power. Despite applying similar operation conditions to both BES, they responded differently. A mixture of organic compounds (1.87 mM acetic acid, 2.30 mM formic acid, 0.43 mM propionic acid, 0.15 mM butyric acid, 0.55 mM valeric acid, and 0.62 mM ethanol) was produced in cell A while mainly 1.82 mM acetic acid and 0.23 mM propionic acid were produced in cell B. The microbial community analysis performed by 16S rRNA gene pyrosequencing showed a predominance of Clostridium sp. and Serratia sp. in cell A whereas Burkholderia sp. and Xanthobacter sp. predominated in cell B. The coexistence of three metabolic pathways involved in carbon fixation was predicted. Calvin cycle was predicted in both cells during the whole experiment while Wood-Ljungdahl and Arnon-Buchanan pathways predominated in the period with higher coulombic efficiency. Metabolic pathways which transform organic acids into anabolic intermediaries were also predicted, indicating the occurrence of complex trophic interactions. These results further complicate the understanding of these mixed culture microbial processes but also expand the expectation of compounds that could potentially be produced with this technology
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
peer-reviewed
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10256/16797
http://hdl.handle.net/10256/16797
url http://hdl.handle.net/10256/16797
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3389/fenrg.2018.00015
info:eu-repo/semantics/altIdentifier/eissn/2296-598X
info:eu-repo/grantAgreement/MINECO//CTQ2014-53718-R
dc.rights.none.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Frontiers Media
publisher.none.fl_str_mv Frontiers Media
dc.source.none.fl_str_mv Frontiers in Energy Research, 2018, vol. 6, p. art.15
Articles publicats (D-EQATA)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.198674

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