Systemic Analysis of the Spatiotemporal Changes in Multi‐Species Electroactive Biofilms to Clarify the Gradual Decline of Current Generation in Microbial Anodes
Abstract The decrease in the electrochemical activity of multi‐species microbial anodes in bioelectrochemical systems is the main bottleneck to overcome for bringing these technologies one‐step closer to the industrialization stage. In this study, microsized stainless steel electrodes were implement...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2023-05-01
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| Series: | ChemElectroChem |
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| Online Access: | https://doi.org/10.1002/celc.202201135 |
| _version_ | 1797804238457274368 |
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| author | Lucila Martinez Ostormujof Dr. Sébastien Teychené Dr. Wafa Achouak Sylvain Fochesato Mohamed Bakarat Dr. Isaac Rodriguez‐Ruiz Dr. Alain Bergel Dr. Benjamin Erable |
| author_facet | Lucila Martinez Ostormujof Dr. Sébastien Teychené Dr. Wafa Achouak Sylvain Fochesato Mohamed Bakarat Dr. Isaac Rodriguez‐Ruiz Dr. Alain Bergel Dr. Benjamin Erable |
| author_sort | Lucila Martinez Ostormujof |
| collection | DOAJ |
| description | Abstract The decrease in the electrochemical activity of multi‐species microbial anodes in bioelectrochemical systems is the main bottleneck to overcome for bringing these technologies one‐step closer to the industrialization stage. In this study, microsized stainless steel electrodes were implemented to investigate the distinctive electrochemical behavior of salt marsh electroactive biofilms (EABs). Four main temporal stages of biocolonization and electrochemical activity were thoroughly described. Maximum biofilm growth rate, high viability and high extracellular protein matrix content favored the increasing electrochemical activity of the EAB up to its maximum current peak. Then, when gradual fall in current became irreversible, biofilm growth rate decreased together with dead cells accumulation and an increase for extracellular polysaccharides. In addition, analyses of microbial populations showed a shift from Marinobacterium spp. to Desulfuromonas spp. These findings suggest a chemical and microbial temporal evolution of the EAB, which can be directly correlated to the electrochemical performance of the bioanode. |
| first_indexed | 2024-03-13T05:33:08Z |
| format | Article |
| id | doaj.art-0b9720bf759c40ecad2b2bfc7abe5317 |
| institution | Directory Open Access Journal |
| issn | 2196-0216 |
| language | English |
| last_indexed | 2024-03-13T05:33:08Z |
| publishDate | 2023-05-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | ChemElectroChem |
| spelling | doaj.art-0b9720bf759c40ecad2b2bfc7abe53172023-06-14T12:43:33ZengWiley-VCHChemElectroChem2196-02162023-05-01109n/an/a10.1002/celc.202201135Systemic Analysis of the Spatiotemporal Changes in Multi‐Species Electroactive Biofilms to Clarify the Gradual Decline of Current Generation in Microbial AnodesLucila Martinez Ostormujof0Dr. Sébastien Teychené1Dr. Wafa Achouak2Sylvain Fochesato3Mohamed Bakarat4Dr. Isaac Rodriguez‐Ruiz5Dr. Alain Bergel6Dr. Benjamin Erable7Laboratoire de Génie Chimique Université de Toulouse, CNRS, INPT, UPS 4 allée Emile Monso, BP 94234 31432 Toulouse FranceLaboratoire de Génie Chimique Université de Toulouse, CNRS, INPT, UPS 4 allée Emile Monso, BP 94234 31432 Toulouse FranceLab of Microbial Ecology of the Rhizosphere (LEMiRE) BIAM, UMR 7265 CNRS-CEA-Aix Marseille University CEA Cadarache 13115 Saint Paul lez Durance FranceLab of Microbial Ecology of the Rhizosphere (LEMiRE) BIAM, UMR 7265 CNRS-CEA-Aix Marseille University CEA Cadarache 13115 Saint Paul lez Durance FranceLab of Microbial Ecology of the Rhizosphere (LEMiRE) BIAM, UMR 7265 CNRS-CEA-Aix Marseille University CEA Cadarache 13115 Saint Paul lez Durance FranceLaboratoire de Génie Chimique Université de Toulouse, CNRS, INPT, UPS 4 allée Emile Monso, BP 94234 31432 Toulouse FranceLaboratoire de Génie Chimique Université de Toulouse, CNRS, INPT, UPS 4 allée Emile Monso, BP 94234 31432 Toulouse FranceLaboratoire de Génie Chimique Université de Toulouse, CNRS, INPT, UPS 4 allée Emile Monso, BP 94234 31432 Toulouse FranceAbstract The decrease in the electrochemical activity of multi‐species microbial anodes in bioelectrochemical systems is the main bottleneck to overcome for bringing these technologies one‐step closer to the industrialization stage. In this study, microsized stainless steel electrodes were implemented to investigate the distinctive electrochemical behavior of salt marsh electroactive biofilms (EABs). Four main temporal stages of biocolonization and electrochemical activity were thoroughly described. Maximum biofilm growth rate, high viability and high extracellular protein matrix content favored the increasing electrochemical activity of the EAB up to its maximum current peak. Then, when gradual fall in current became irreversible, biofilm growth rate decreased together with dead cells accumulation and an increase for extracellular polysaccharides. In addition, analyses of microbial populations showed a shift from Marinobacterium spp. to Desulfuromonas spp. These findings suggest a chemical and microbial temporal evolution of the EAB, which can be directly correlated to the electrochemical performance of the bioanode.https://doi.org/10.1002/celc.202201135electrochemistryextracellular polymeric substancesoxidationsalt marsh bioanodesstainless steel microelectrodes |
| spellingShingle | Lucila Martinez Ostormujof Dr. Sébastien Teychené Dr. Wafa Achouak Sylvain Fochesato Mohamed Bakarat Dr. Isaac Rodriguez‐Ruiz Dr. Alain Bergel Dr. Benjamin Erable Systemic Analysis of the Spatiotemporal Changes in Multi‐Species Electroactive Biofilms to Clarify the Gradual Decline of Current Generation in Microbial Anodes ChemElectroChem electrochemistry extracellular polymeric substances oxidation salt marsh bioanodes stainless steel microelectrodes |
| title | Systemic Analysis of the Spatiotemporal Changes in Multi‐Species Electroactive Biofilms to Clarify the Gradual Decline of Current Generation in Microbial Anodes |
| title_full | Systemic Analysis of the Spatiotemporal Changes in Multi‐Species Electroactive Biofilms to Clarify the Gradual Decline of Current Generation in Microbial Anodes |
| title_fullStr | Systemic Analysis of the Spatiotemporal Changes in Multi‐Species Electroactive Biofilms to Clarify the Gradual Decline of Current Generation in Microbial Anodes |
| title_full_unstemmed | Systemic Analysis of the Spatiotemporal Changes in Multi‐Species Electroactive Biofilms to Clarify the Gradual Decline of Current Generation in Microbial Anodes |
| title_short | Systemic Analysis of the Spatiotemporal Changes in Multi‐Species Electroactive Biofilms to Clarify the Gradual Decline of Current Generation in Microbial Anodes |
| title_sort | systemic analysis of the spatiotemporal changes in multi species electroactive biofilms to clarify the gradual decline of current generation in microbial anodes |
| topic | electrochemistry extracellular polymeric substances oxidation salt marsh bioanodes stainless steel microelectrodes |
| url | https://doi.org/10.1002/celc.202201135 |
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