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Gamma and electron beam irradiation as an alternative for postharvest treatment: a case study with chestnuts

2013Conference object Open access
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dc.contributor.authorCarocho, Márcio
dc.contributor.authorAntonio, Amilcar L.
dc.contributor.authorBarreira, João C.M.
dc.contributor.authorBarros, Lillian
dc.contributor.authorRafalski, Andrzej
dc.contributor.authorBento, Albino
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2013-09-06T09:51:09Z
dc.date.available2013-09-06T09:51:09Z
dc.date.issued2013
dc.description.abstractChestnut fruits are an important food commodity in the Northeast region of "Trás-osMontes", representing an income of approximately 17 M€ and being Porn1gal one of the: world's biggest producer. Due to environmental concerns a broad spectrum fumigant, methyl bromide, was banned in 20 I 0 by the European Union. Since then, no adequate postharvest treatment has been implemented, fostering research on suitable alteratives. Our research group has been testing gamma and electron beam irradiation as an alternative postharvest treatment for chestnuts. On a first attempt to evaluate the influence of irradiation, various doses were tested (0, 0.5, I, 3 and 6 kGy) along different storage times (0, 30 and 60 days). The effects were assessed in the most important chemical parameters, namely nutritional, antioxidant, sugar, fatty acid, tocopherol, organic acid and triacylglyccrol profiles, in which, all seemed to be altered to a greater extent by storage time than by the different doses. Another important conclusion was the validation of I kGy as the optimal dose for chestnuts conservation. This conclusion sustained the venture to extend the study to four varieties (Longal, Judia, Cotaand Palummina) with a fixed dose of I kGy for both gamma radiation and electron beam. The results were processed through principal component analysis and confined that both gamma (1) and electron beam (2) irradiation showed high potential to be used as postharvest conservation technology. The most marked differences were found between the four different cultivars, especially Cola and Palummina, while non-irradiated and irradiated chestnuts proved to have very similar profiles in all the assayed parameters, with irradiation having an attenuating effect.por
dc.identifier.citationCarocho, Márcio; Antonio, Amilcar L.; Barreira, João C.M.; Barros, Lillian; Rafalski, Andrzej; Bento, Albino; Ferreira, Isabel C.F.R. (2013). Gamma and electron beam irradiation as an alternative for postharvest treatment: A case study with chestnuts. In XXIII Encontro Nacional da SPQ. Aveiropor
dc.identifier.urihttp://hdl.handle.net/10198/8649
dc.language.isoengpor
dc.peerreviewedyespor
dc.relationBPD/4609/2008
dc.relationBIOACTIVE PROPERTIES & CYTOPROTECTIVE POTENTIAL OF NATURAL EXTRACTS/INDIVIDUAL COMPOUNDS: APPLICATION OF SINGLE CELL GEL ELECTROPHORESIS AND OTHER BIOCHEMICAL, CHEMICAL AND ELECTROCHEMICAL ASSAYS
dc.titleGamma and electron beam irradiation as an alternative for postharvest treatment: a case study with chestnutspor
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleBIOACTIVE PROPERTIES & CYTOPROTECTIVE POTENTIAL OF NATURAL EXTRACTS/INDIVIDUAL COMPOUNDS: APPLICATION OF SINGLE CELL GEL ELECTROPHORESIS AND OTHER BIOCHEMICAL, CHEMICAL AND ELECTROCHEMICAL ASSAYS
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F72802%2F2010/PT
oaire.citation.conferencePlaceAveiropor
oaire.citation.titleXXIII Encontro Nacional da SPQ, 12 a 14 de Junho de 2013por
person.familyNameCarocho
person.familyNameAntonio
person.familyNameBarreira
person.familyNameBarros
person.familyNameBento
person.familyNameFerreira
person.givenNameMárcio
person.givenNameAmilcar L.
person.givenNameJoão C.M.
person.givenNameLillian
person.givenNameAlbino
person.givenNameIsabel C.F.R.
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person.identifier.orcid0000-0003-4910-4882
person.identifier.ridJ-1960-2014
person.identifier.ridD-8269-2013
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
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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
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