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Effects of gamma radiation on cork wastewater: Antioxidant activity and toxicity

2017Journal article Open access
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dc.contributor.authorMadureira, Joana
dc.contributor.authorPimenta, Andreia I.
dc.contributor.authorPopescu, Larisa
dc.contributor.authorBesleaga, Alexandra
dc.contributor.authorDias, Maria Inês
dc.contributor.authorSantos, Pedro M.P.
dc.contributor.authorMelo, Rita
dc.contributor.authorFerreira, Isabel C.F.R.
dc.contributor.authorCabo Verde, Sandra
dc.contributor.authorMargaça, Fernanda M.A.
dc.date.accessioned2018-01-25T10:00:00Z
dc.date.accessioned2018-01-30T15:00:38Z
dc.date.available2018-01-25T10:00:00Z
dc.date.available2018-01-30T15:00:38Z
dc.date.issued2017
dc.description.abstractA comprehensive assessment of the toxicity and antioxidant activity of cork boiling wastewater and the effects of gamma radiation on these parameters was performed. Antioxidant activity was evaluated using different methodologies as DPPH radical scavenging activity, reducing power and inhibition of ß-carotene bleaching. The results have shown that gamma radiation can induce an increase on the antioxidant activity of cork boiling wastewater. Toxicity tests were performed to access the potential added value of the irradiated wastewaters and/or minimization of the impact for discharge in the environment. Two different methods for toxicity evaluation were followed, bacterial growth inhibition test and cytotoxicity assay, in order to predict the behavior of different cells (prokaryotic and eukaryotic) in the presence of cork wastewater. Non-treated cork boiling wastewater seemed to be non-toxic for prokaryotic cells (Pseudomonas fluorescens and Bacillus subtilis) but toxic for eukaryotic cells (A549 human cells and RAW264.7 mouse cells). The gamma radiation treatment at doses of 100 kGy appeared to increase the toxicity of cork compounds for all tested cells, which could be related to a toxic effect of radiolytic products of cork compounds in the wastewaters.pt_PT
dc.description.sponsorshipThis work was supported by Fundação para a Ciência e a Tecnologia (FCT, Portugal) through financial support of RECI/AAG-TEC/0400/2012 “Application of Ionizing Radiation for a Sustainable Environment” project. C2TN/IST authors gratefully acknowledge the FCT support through the UID/Multi/04349/2013 project. The authors are also grateful to International Atomic Energy Agency (Contract No. 16513) and to the cork industry (Amorim S.A) for allowing us to collect all the samples necessary for the accomplishment of this work.
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMadureira, Joana; Pimenta, Andreia I.; Popescu, Larisa; Besleaga, Alexandra; Dias, Maria Inês; Santos, Pedro M.P.; Melo, Rita; Ferreira, Isabel C.F.R.; Cabo Verde, Sandra; Margaça, Fernanda M.A. (2017). Effects of gamma radiation on cork wastewater: Antioxidant activity and toxicity. Chemosphere. ISSN 0045-6535. 169, p. 139-145en_EN
dc.identifier.doi10.1016/j.chemosphere.2016.11.064pt_PT
dc.identifier.issn0045-6535
dc.identifier.urihttp://hdl.handle.net/10198/15311
dc.language.isoeng
dc.peerreviewedyespt_PT
dc.relationApplication of Ionizing Radiation for a Sustainable Environment
dc.subjectAntioxidant activityen_EN
dc.subjectCork boiling wateren_EN
dc.subjectCytotoxicityen_EN
dc.subjectEcotoxicityen_EN
dc.subjectGamma radiationen_EN
dc.subjectWastewater treatmenten_EN
dc.titleEffects of gamma radiation on cork wastewater: Antioxidant activity and toxicityen_EN
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleApplication of Ionizing Radiation for a Sustainable Environment
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F04349%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/RECI%2FAAG-TEC%2F0400%2F2012/PT
oaire.fundingStream5876
oaire.fundingStream3599-PPCDT
person.familyNameDias
person.familyNameFerreira
person.givenNameMaria Inês
person.givenNameIsabel C.F.R.
person.identifier144781
person.identifier.ciencia-id2A13-4BE6-C7CF
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0001-8744-7814
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridM-8242-2013
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id54388787000
person.identifier.scopus-author-id36868826600
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.rightsopenAccessen_EN
rcaap.typearticlept_PT
relation.isAuthorOfPublication7ca8432b-e7f4-4116-a56e-9eba0d4403bd
relation.isAuthorOfPublicationbd0d1537-2e03-41fb-b27a-140af9c35db8
relation.isAuthorOfPublication.latestForDiscoverybd0d1537-2e03-41fb-b27a-140af9c35db8
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