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Antioxidant activity of gamma irradiated Lactarius deliciosus L. from Northeast Portugal

2012Conference object Open access
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dc.contributor.authorFernandes, Ângela
dc.contributor.authorOliveira, Beatriz
dc.contributor.authorAntonio, Amilcar L.
dc.contributor.authorMartins, Anabela
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2012-06-06T10:43:33Z
dc.date.available2012-06-06T10:43:33Z
dc.date.issued2012
dc.description.abstractA diet rich in natural antioxidant compounds has been linked to a reduced risk of developing chronic oxidative stress-related diseases, including cancer and cardiovascular and neurodegenerative diseases. In addition to their highly appreciated nutitional value, mushrooms could be an interesting source of antioxidant compounds [1]. Nevertheless, their short shelf-life might be a limitation to the distribution and marketing of fresh mushrooms. Gamma irradiation could be an alternative to ensure the quality and extend mushrooms shelf-life, that has been used in several food products (Directive 1999/2/EC). Herein, the effects of gamma irradiation (0.5 and 1 kGy performed in a 60Co experimental equipment) and storage time (0, 4 and 8 days at 4 ºC) in antioxidant potential of the wild edible mushroom Lactarius deliciousus L. collected in Trás-os-Montes, Northeast Portugal, were evaluated for the first time. The antioxidant properties were evaluated through scavenging activity against 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals, reducing power (RP), inhibition of lipid peroxidation using thiobarbituric acid reactive substances (TBARS) and β-carotene-linoleate model systems. Data obtained show influence of storage time and irradiation dose over antioxidant activity. Some effects were clearly observed, such as the case of the highest antioxidant potential observed in irradiated samples (with both doses) when compared to non-irradiated ones (control) at 0 days. Therefore, the application of gamma irradiation seemed to be advantageous for the assayed antioxidant methods, but further studied are necessary to understand the mentioned effects.por
dc.identifier.citationFernandes, Ângela; Oliveira, M. Beatriz P.P.; Antonio, Amilcar L.; Martins, Anabela; Ferreira, Isabel C.F.R. (2012). Antioxidant activity of gamma irradiated Lactarius deliciosus L. from Northeast Portugal. In NEEFood - The First North and East European Congress on Food. St. Petersburg, Russiapor
dc.identifier.urihttp://hdl.handle.net/10198/7017
dc.language.isoengpor
dc.peerreviewedyespor
dc.relationPortuguese Wild Mushrooms: Chemical characterization and functional study of antiproliferative and proapoptotic properties in cancer cell lines
dc.subjectWild mushroomspor
dc.subjectLactarius deliciosuspor
dc.subjectGamma irradiationpor
dc.subjectAntioxidant activitypor
dc.titleAntioxidant activity of gamma irradiated Lactarius deliciosus L. from Northeast Portugalpor
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitlePortuguese Wild Mushrooms: Chemical characterization and functional study of antiproliferative and proapoptotic properties in cancer cell lines
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FAGR-ALI%2F110062%2F2009/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F76019%2F2011/PT
oaire.citation.conferencePlace22-24 April, St Petersburg, Russiapor
oaire.citation.titleNEEFood - The First North and East European Congress on Foodpor
oaire.fundingStream5876-PPCDTI
oaire.fundingStreamSFRH
person.familyNameFernandes
person.familyNameAntonio
person.familyNameMartins
person.familyNameFerreira
person.givenNameÂngela
person.givenNameAmilcar L.
person.givenNameAnabela
person.givenNameIsabel C.F.R.
person.identifier144781
person.identifier.ciencia-id2015-0434-AE7C
person.identifier.ciencia-id1014-5259-DE86
person.identifier.ciencia-id7B18-A810-6B93
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-0157-9873
person.identifier.orcid0000-0001-8271-9964
person.identifier.orcid0000-0001-6218-4413
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridJ-1960-2014
person.identifier.ridG-5488-2013
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id44560921900
person.identifier.scopus-author-id7203013518
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.rightsopenAccesspor
rcaap.typeconferenceObjectpor
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