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Wastewater valorization by pure bacterial cultures to Extracellular Polymeric Substances (EPS) with high emulsifying potential and flocculation activities

2018Journal article Open access
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dc.contributor.authorDrakou, Efi‑Maria
dc.contributor.authorAmorim, Catarina L.
dc.contributor.authorCastro, Paula M. L.
dc.contributor.authorPanagiotou, Fostira
dc.contributor.authorVyrides, Ioannis
dc.date.accessioned2018-11-08T16:56:58Z
dc.date.available2018-11-08T16:56:58Z
dc.date.issued2018
dc.description.abstractNowadays much effort has been devoted for the development of cost-effective and environmentally friendly processes to obtain extracellular polymeric substances (EPS) with high emulsifying and flocculation activities. The aim of this study was to evaluate the capacity of bacterial strains previously isolated from oil-contaminated areas to produce EPS with high emulsification and bioflocculant properties during cultivation in domestic and bilge wastewater and in industrial crude glycerol. A total of seven bacterial strains were screened for EPS production, from which two strains, Pseudomonas aeruginosa LVD-10 and Enterobacter sp. SW, were selected as potential EPS producers. EPS with high emulsifying capacity in olive oil (a maximum of 96.6 and 89.8% for strain SW and LVD-10, respectively) was produced using bilge wastewater as substrate. EPS with a slightly lower emulsifying capacity was obtained using crude glycerol. In addition, the flocculation activity of the EPS extracted from strains LVD-10 and SW grown on crude glycerol was considerably higher (81.6 and 73.3%, respectively) than that obtained with other substrates. This is the first study that points out that EPS with emulsifying and flocculation potential activity can be produced from bilge wastewater and crude glycerol. The production of biopolymers with broad biotechnological applications using low-cost substrates can be a means to valorise waste streams.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationDrakou, E.-M., Amorim, C.L., Castro, P.M.L., Panagiotou, F., Vyrides, I. (2018). Wastewater Valorization by Pure Bacterial Cultures to Extracellular Polymeric Substances (EPS) with High Emulsifying Potential and Flocculation Activities. Waste and Biomass Valorization, 1-8pt_PT
dc.identifier.doi10.1007/s12649-017-0016-9pt_PT
dc.identifier.eid85023169616
dc.identifier.eissn1877-265X
dc.identifier.issn1877-2641
dc.identifier.urihttp://hdl.handle.net/10400.14/26028
dc.identifier.wos000450305000027
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationCOST-STSM-ES1202-21375
dc.subjectExtra cellular polymeric substancespt_PT
dc.subjectBiovalorizationpt_PT
dc.subjectEmulsificationpt_PT
dc.subjectFlocculation activitypt_PT
dc.titleWastewater valorization by pure bacterial cultures to Extracellular Polymeric Substances (EPS) with high emulsifying potential and flocculation activitiespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F04423%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F96481%2F2013/PT
oaire.citation.endPage2564
oaire.citation.issue12
oaire.citation.startPage2557
oaire.citation.titleWaste and Biomass Valorizationpt_PT
oaire.citation.volume9
oaire.fundingStream5876
oaire.fundingStreamSFRH
person.familyNameAmorim
person.familyNameCastro
person.familyNameVyrides
person.givenNameCatarina L.
person.givenNamePaula
person.givenNameIoannis
person.identifier1394766
person.identifier2013444
person.identifier834451
person.identifier.ciencia-id791E-5D42-9B68
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.orcid0000-0002-6756-552X
person.identifier.orcid0000-0001-8841-6606
person.identifier.orcid0000-0001-8316-4577
person.identifier.ridK-6091-2014
person.identifier.ridM-8241-2013
person.identifier.ridD-1625-2016
person.identifier.scopus-author-id36896692500
person.identifier.scopus-author-id7102781782
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublicationf2253992-dc8d-4042-9a0f-597ebcf0a1d6
relation.isAuthorOfPublication40d789b1-754b-4522-9ac1-8e66189a0840
relation.isAuthorOfPublication.latestForDiscoveryf2253992-dc8d-4042-9a0f-597ebcf0a1d6
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