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Comparative effects of gamma and electron beam irradiation on the antioxidant potential of Portuguese chestnuts (Castanea sativa Mill.)

2012Journal article Open access
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dc.contributor.authorCarocho, Márcio
dc.contributor.authorAntonio, Amilcar L.
dc.contributor.authorBarros, Lillian
dc.contributor.authorBento, Albino
dc.contributor.authorBotelho, M. Luísa
dc.contributor.authorKałuska, Iwona
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2013-01-04T16:03:40Z
dc.date.available2013-01-04T16:03:40Z
dc.date.issued2012
dc.description.abstractChestnuts (Castanea sativa Mill.) are widely consumed all over the world, and have been recently studied for their antioxidant potential. The present study reports the effect of e-beam and gamma radiation (doses of 0, 0.5, 1 and 3 kGy) on the antioxidant potential of Portuguese chestnuts. Irradiation might be an alternative preservation method, since Methyl Bromide, a widely used fumigant, was banished by the European Union in 2010 due to its toxicity. The antioxidant activity was evaluated through 2,2- diphenyl-1-pycrylhydrazyl (DPPH) free radical scavenging activity assay, reducing power by the Ferricyanide/Prussian blue assay, and lipid peroxidation inhibition by β- carotene/linoleate and thiobarbituric acid reactive substances (TBARS) assays. The analysis of total phenolics and flavonoids was performed by spectrophotometric assays. Irradiated samples preserved total phenolics content (but not flavonoids) and revealed higher antioxidant activity (lower EC50 values) than the control samples. The most indicated doses to maintain antioxidants content, and to increase antioxidant activity were 1 kGy and 3 kGy for electron beam and gamma radiation, respectively.por
dc.identifier.citationCarocho, Márcio; Antonio, Amilcar L.; Barros, Lillian; Bento, Albino; Botelho, M. Luisa; Kaluska, Iwona; Ferreira, Isabel C.F.R. (2012). Comparative effects of gamma and electron beam irradiation on the antioxidant potential of Portuguese chestnuts (Castanea sativa Mill.). Food and Chemical Toxicology. ISSN 0278-6915. 50:10, p. 3452-3455por
dc.identifier.doi10.1016/j.fct.2012.07.041
dc.identifier.issn0278-6915
dc.identifier.urihttp://hdl.handle.net/10198/7820
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.relationON.2/QREN/EU Project 13198/2010
dc.relationStrategic Project - UI 690 - 2011-2012
dc.relationSFRH/BPD/4609/2008
dc.subjectE-beampor
dc.subjectGammapor
dc.subjectIrradiationpor
dc.subjectChestnutspor
dc.subjectAntioxidantspor
dc.subjectPhenolicspor
dc.titleComparative effects of gamma and electron beam irradiation on the antioxidant potential of Portuguese chestnuts (Castanea sativa Mill.)por
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleStrategic Project - UI 690 - 2011-2012
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FAGR%2FUI0690%2F2011/PT
oaire.citation.endPage3455por
oaire.citation.startPage3452por
oaire.citation.titleFood and Chemical Toxicologypor
oaire.citation.volume50por
oaire.fundingStream6817 - DCRRNI ID
person.familyNameCarocho
person.familyNameAntonio
person.familyNameBarros
person.familyNameBento
person.familyNameFerreira
person.givenNameMárcio
person.givenNameAmilcar L.
person.givenNameLillian
person.givenNameAlbino
person.givenNameIsabel C.F.R.
person.identifierawbWiiMAAAAJ&hl
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person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-8978-4547
person.identifier.orcid0000-0001-8271-9964
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0001-5215-785X
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridJ-1960-2014
person.identifier.ridJ-3600-2013
person.identifier.ridN-9706-2016
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id52463229800
person.identifier.scopus-author-id44560921900
person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id35247694000
person.identifier.scopus-author-id36868826600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspor
rcaap.typearticlepor
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