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Influence of Electron Acceptors on Hexanoic Acid Production by Clostridium Kluyveri
dc.contributor.author | San-Valero, Pau | |
dc.contributor.author | Fernández-Naveira, Ánxela | |
dc.contributor.author | Veiga, María Carmen | |
dc.contributor.author | Kennes, Christian | |
dc.date.accessioned | 2024-01-24T16:56:18Z | |
dc.date.issued | 2019-05-07 | |
dc.identifier.citation | P. San-Valero, Á. Fernández-Naveira, M.C. Veiga, C. Kennes, Influence of electron acceptors on hexanoic acid production by Clostridium kluyveri, Journal of Environmental Management, Volume 242, 2019, Pages 515-521, ISSN 0301-4797, https://doi.org/10.1016/j.jenvman.2019.04.093. (https://www.sciencedirect.com/science/article/pii/S0301479719305602) | es_ES |
dc.identifier.issn | 0301-4797 | |
dc.identifier.uri | http://hdl.handle.net/2183/35114 | |
dc.description.abstract | [Abstract] Clostridium kluyveri was used for chain elongation of C2C4 fatty acids in stirred tank bioreactors. The influence of different electron acceptors (acetic acid, butyric acid and the mixture of both) on C6 fatty acid production was evaluated in presence of ethanol using similar molar alcohol/acid ratios around 3.5. Bottle batch assays without pH regulation and with only acetic acid as electron acceptor yielded a final C6 fatty acid concentration of 6.8 ± 0.6 g L−1. Then, pH-regulated bioreactors were operated at constant pH of 6.8. Under such conditions, the maximum growth rate was 0.039 h−1 obtained using acetic acid and butyric acid as electron acceptors, whereas the lowest growth rate was 0.010 h−1 with only butyric acid as electron acceptor. The maximum growth rate with acetic acid only, was similar, though slightly lower, as with the mixture of C2C4 fatty acids. Besides, the maximum productions of hexanoic acid were 11.8 g L−1, 13.1 g L−1 and 21.2 g L−1 using, respectively, acetic acid, butyric acid and the mixture of both acids as electron acceptors. Thus, the use of a mixture of acetic acid and butyric acid in presence of ethanol for chain elongation, at constant pH, proved to be efficient for hexanoic acid production. | es_ES |
dc.description.sponsorship | The authors acknowledge the financial support from the Spanish Ministry of Economy, Industry and Competitiveness (MINECO) through project CTQ2017-88292-R, as well as through European FEDER funds. AFN thanks the Xunta de Galicia (Spain) for her pre-doctoral contract. PSV acknowledges the contract granted by Generalitat Valenciana for her post-doctoral stay at UDC (Spain) (APOSTD/2017/121). AFN is greatly acknowledged for her support in training PSV in the set-up and operation of the bioreactors. The authors belonging to the BIOENGIN group at UDC thank the Xunta de Galicia for its financial support to Competitive Reference Research Groups (GRC) (ED431C 2017/66) | es_ES |
dc.description.sponsorship | Generalitat Valenciana; APOSTD/2017/121 | es_ES |
dc.description.sponsorship | Xunta de Galicia; ED431C 2017/66 | 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 | es_ES |
dc.relation.uri | https://doi.org/10.1016/j.jenvman.2019.04.093 | es_ES |
dc.rights | © 2019 Elsevier Ltd. All rights reserved. | es_ES |
dc.subject | Acetogen | es_ES |
dc.subject | Anaerobic fermentation | es_ES |
dc.subject | Chain elongation | es_ES |
dc.subject | Clostridium kluyveri | es_ES |
dc.subject | Hexanoic acid | es_ES |
dc.subject | Medium chain fatty acids | es_ES |
dc.title | Influence of Electron Acceptors on Hexanoic Acid Production by Clostridium Kluyveri | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.access | info:eu-repo/semantics/embargoedAccess | es_ES |
dc.date.embargoEndDate | 9999-99-99 | es_ES |
dc.date.embargoLift | 10007-06-07 | |
UDC.journalTitle | Journal of Environmental Management | es_ES |
UDC.issue | 242 (15 July 2019) | es_ES |
UDC.startPage | 515 | es_ES |
UDC.endPage | 521 | es_ES |
dc.identifier.doi | 10.1016/j.jenvman.2019.04.093 |
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