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Selective Butanol Production From Carbon Monoxide by an Enriched Anaerobic Culture
dc.contributor.author | He, Yaxue | |
dc.contributor.author | Lens, Piet N. L. | |
dc.contributor.author | Veiga, María Carmen | |
dc.contributor.author | Kennes, Christian | |
dc.date.accessioned | 2021-11-09T14:29:19Z | |
dc.date.available | 2021-11-09T14:29:19Z | |
dc.date.issued | 2021-09-25 | |
dc.identifier.citation | He Y, Lens PNL, Veiga MC, Kennes C. Selective butanol production from carbon monoxide by an enriched anaerobic culture. Science of The Total Environment 2022;806:150579. | es_ES |
dc.identifier.issn | 0048-9697 | |
dc.identifier.uri | http://hdl.handle.net/2183/28820 | |
dc.description | Financiado para publicación en acceso aberto: Universidade da Coruña/CISUG | es_ES |
dc.description.abstract | [Abstract] An anaerobic mixed culture able to grow on pure carbon monoxide (CO) as well as syngas (CO, CO2 and H2), that produced unusual high concentrations of butanol, was enriched in a bioreactor with intermittent CO gas feeding. At pH 6.2, it mainly produced acids, generally acetic and butyric acid. After adaptation, under stress conditions of CO exposure at a partial pressure of 1.8 bar and low pH (e.g., 5.7), the enrichment accumulated ethanol, but also high amounts of butanol, up to 6.8 g/L, never reported before, with a high butanol/butyric acid molar ratio of 12.6, highlighting the high level of acid to alcohol conversion. At the end of the assay, both the acetic acid and ethanol concentrations decreased, with concomitant butyric acid production, suggesting C2 to C4 acid bioconversion, though this was not a dominant bioconversion process. The reverse reaction of ethanol oxidation to acetic acid was observed in the presence of CO2 produced during CO fermentation. Interestingly, butanol oxidation with simultaneous butyric acid production occurred upon production of CO2 from CO, which has to the best of our knowledge never been reported. Although the sludge inoculum contained a few known solventogenic Clostridia, the relative taxonomic abundance of the enriched sludge was diverse in Clostridia and Bacilli classes, containing known solventogens, e.g., Clostridium ljungdhalii, Clostridium ragsdalei and Clostridium coskatii, confirming their efficient enrichment. The relative abundance of unassigned Clostridium species amounted to 27% with presumably novel ethanol/butanol producers. | es_ES |
dc.description.sponsorship | This publication has emanated from research supported by Science Foundation Ireland (SFI) through the SFI Research Professorship Programme entitled Innovative Energy Technologies for Biofuels, Bioenergy and a Sustainable Irish Bioeconomy (IETSBIO3; grant number 15/RP/2763) and the Research Infrastructure research grant Platform for Biofuel Analysis (Grant Number 16/RI/3401). This research was partly funded by the Spanish Ministry of Economy, Industry and Competitiveness (MINECO) through project CTQ2017-88292-R and European FEDER funds. The BIOENGIN group thanks Xunta de Galicia for financial support to its Competitive Reference Research Group (ED431C 2021/55). Funding for open access charge provided by Universidade da Coruña/CISUG | es_ES |
dc.description.sponsorship | Irlanda. Science Foundation Ireland; 15/RP/2763 | es_ES |
dc.description.sponsorship | Irlanda. Science Foundation Ireland; 16/RI/3401 | es_ES |
dc.description.sponsorship | Xunta de Galicia; ED431C 2021/55 | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/CTQ2017-88292-R/ES/VALORIZACION DE RESIDUOS PARA LA PRODUCCION DE ALCOHOLES, ACIDOS ORGANICOS Y BIOPOLIMEROS | |
dc.relation.uri | https://doi.org/10.1016/j.scitotenv.2021.150579 | es_ES |
dc.rights | Atribución-NoComercial-SinDerivadas 4.0 Internacional | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Carbon monoxide | es_ES |
dc.subject | Solventogenesis | es_ES |
dc.subject | Butanol | es_ES |
dc.subject | Clostridium spp. | es_ES |
dc.subject | Anaerobic sludge | es_ES |
dc.title | Selective Butanol Production From Carbon Monoxide by an Enriched Anaerobic Culture | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.access | info:eu-repo/semantics/openAccess | es_ES |
UDC.journalTitle | Science of The Total Environment | es_ES |
UDC.volume | 806 | es_ES |
UDC.issue | 2 | es_ES |
UDC.startPage | 150579 | es_ES |
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