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Biodegradation of fluoroquinolones by a bacterial consortium

2011Conference object Open access
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dc.contributor.authorMaia, Alexandra S.
dc.contributor.authorDuque, Anouk F.
dc.contributor.authorRibeiro, Ana R.
dc.contributor.authorTiritan, Maria E.
dc.contributor.authorCastro, Paula M. L.
dc.date.accessioned2013-11-14T16:45:21Z
dc.date.available2013-11-14T16:45:21Z
dc.date.issued2011
dc.description.abstractThe present concern in pharmaceuticals in the environment is well known and research studies in this area have been regularly reported. Pharmaceuticals reach the environment by several ways but mostly due to their incorrect disposal and the incomplete elimination during the treatment processes in Wastewater Treatment Plants (WWTP). These residues continuously enter aquatic environments and many of them are resistant to degradation, being so called as pseudo-persistent pollutants. In aquatic compartments, pharmaceutical residues reach concentrations in the ng L-1 to µg L-1 range. This work describes the biodegradation of four fluoroquinolones, Ofloxacin (OFL), Norfloxacin (NOR), Ciprofloxacin (CPF) and Moxifloxacin (MOX), by a bacterial consortium constituted by three bacterial species isolated in our labs, namely F11, FP1 and S2, known to degrade different aromoatic fluorinated compounds. The experiments were conducted in batch mode using a mineral medium supplemented with acetate and 10 mg l-1 of each compound or 10 mg l-1 of a mix of the compounds. The bacterial consortium was capable of aerobic biodegradation of OFL, NOR and CPF during successive feedings of the compounds to the medium, as measured by monitoring removal of the compounds by HPLC-FD and fluoride release by potenciometry. Degradation profile of the fluoroquinolones used in this study indicated that intermediate metabolites were accumulated. Two of the initial constituting strains, F11, belonging to the α-proteobacteria group, and S2, belonging to the Actinobacteria group, were recovered from the medium, F11 predominating in cultures fed with moxifloxacin whereas S2 was mostly found in the remaining cultures. Degradation by single bacteria is under evaluation.por
dc.identifier.citationMAIA, Alexandra S. - Biodegradation of fluoroquinolones by a bacterial consortium. In IV International Conference on Environment, Industrial and Applied Microbiology (BioMicroWorld 2011), Málaga, Spain, 14th-16th September 2011. – In BioMicroWorld 2011: Book of Abstracts, p.544por
dc.identifier.urihttp://hdl.handle.net/10400.14/13245
dc.language.isoengpor
dc.peerreviewedyespor
dc.subjectbiodegradationpor
dc.subjectfluoroquinolonespor
dc.subjectpharmaceuticalspor
dc.titleBiodegradation of fluoroquinolones by a bacterial consortiumpor
dc.typeconference object
dspace.entity.typePublication
person.familyNameMaia
person.familyNameF. Duque
person.familyNameTiritan
person.familyNameCastro
person.givenNameAlexandra S.
person.givenNameAnouk
person.givenNameMaria Elizabeth
person.givenNamePaula
person.identifier1310409
person.identifier2013444
person.identifier.ciencia-id6A15-F0A3-AEF2
person.identifier.ciencia-id7819-FA0D-FC04
person.identifier.ciencia-idD915-BFC0-FB3A
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.orcid0000-0002-4167-383X
person.identifier.orcid0000-0002-8360-1404
person.identifier.orcid0000-0003-3320-730X
person.identifier.orcid0000-0001-8841-6606
person.identifier.ridN-5863-2014
person.identifier.ridK-9492-2014
person.identifier.ridM-8241-2013
person.identifier.scopus-author-id55332349300
person.identifier.scopus-author-id36573459300
person.identifier.scopus-author-id6602890981
person.identifier.scopus-author-id7102781782
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
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relation.isAuthorOfPublicationd23f1d0d-9558-4f84-aa79-1efc0552f360
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relation.isAuthorOfPublication.latestForDiscovery1ab8e8f5-cf82-4edd-89d8-46e5cca13e19

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