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Título
Impact of the start-up process on the microbial communities in biocathodes for electrosynthesis
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Bioelectrochemistry
Cita Bibliográfica
Mateos, R., Sotres, A., Alonso, R. M., Escapa, A., & Morán, A. (2018). Impact of the start-up process on the microbial communities in biocathodes for electrosynthesis. Bioelectrochemistry, 121, 27-37. https://doi.org/10.1016/J.BIOELECHEM.2018.01.002
Editorial
ELSEVIER
Fecha
2018-09-11
ISSN
1567-5394
Resumen
[EN]This study elucidates the impact of the start-up strategies on the microbial communities that evolve on the biofilm of a biocathode. Using reductive start-up potentials and a highly diverse inoculum, this start-up failed to produce any biofilm. When a less species richness inoculum from an anaerobic environment was used with the same reductive initial potential, a specialised biofilm was formed and a highly productive biocathode was developed in terms of acetic acid and also current production. However, using oxidative start-up potential led to rapid electroactive biofilm development, although the final composition of the biofilm was highly dependent on the inoculum used. So, using the diverse RM inoculum, a final specialised biofilm grew on the electrode, also giving high acetate and current generation. However, when using the less species richness AD inoculum, it was found that a nonspecialised biofilm was developed and lower acetic acid production was found. Importantly, a higher specialisation of the biofilm leads to an improvement in acetate generation, probably due to lowered influence of undesirable secondary methabolic pathways. Moreover, it has been shown that the coupling of H2 producing bacteria and acetic acid bacteria play an important role in acetate production
Materia
Palabras clave
Peer review
SI
ID proyecto
- info:eu-repo/grantAgreement/MINECO/ Programa Estatal de I+D+I Orientada a los Retos de la Sociedad / CTQ2015-68925-R /ES/ INTEGRACION DE PROCESOS ELECTROQUIMICOS Y BIOELECTROQUIMICOS PARA LA MEJORA DE LA DIGESTION ANAEROBIA//
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Descripción:
s study seeks to understand how bacterial communities