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Raman measurements on gamma irradiated chestnut fruits

2024Documento de conferência Acesso aberto
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datacite.subject.fosCiências Naturais::Ciências Físicas
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
dc.contributor.authorAntonio, Amilcar L.
dc.contributor.authorCabo Verde, Sandra
dc.contributor.authorCerqueira, M. Fatima
dc.date.accessioned2026-05-18T10:34:34Z
dc.date.available2026-05-18T10:34:34Z
dc.date.issued2024
dc.description.abstractIrradiation for food preservation is on use in several countries for different types of foods: fish, meat, vegetables, etc., with its application accepted and regulated by national and international food safety agencies [1]. In this work, Raman scattering measurements were performed on non-irradiated and gamma irradiated chestnut fruits at different irradiation doses (1, 2 and 5 kGy), identifying the peaks associated with main molecular structures present on chestnut fruits [2]. The intensity ratios of relevant peaks were used to correlate the obtained results with the dose and/or variety. From the spectra analysis it was possible to conclude that some molecular structures were affected by radiation, observing that bending modes and stretching modes of O– H and C– H bonds have a correlation with irradiation dose. In particular, for disaccharide molecules, such as sucrose, radiation could break glycoside bond, leading to the increase of fructose and glucose, which is in accord with previous chemical analysis for the effects of irradiation processing on chestnut fruits [3]. With the obtained results, following the appropriate peaks of Raman spectra for irradiated fruits, it was possible to identify chestnut fruits variety and, furthermore, discriminate irradiated from non-irradiated samples.eng
dc.description.sponsorshipThis work was supported by National Grant no. FCT/MCTES (PIDDAC): UIDB/00690/2020(DOI:10.54499/UIDB/00690/2020) and UIDP/00690/2020 (DOI:10.54499/UIDP/00690/2020);SusTEC, LA/P/0007/2020 (DOI:10.54499/LA/P/0007/2020)
dc.identifier.citationAntonio, Amilcar L.; Cabo Verde, Sandra; Cerqueira, M. Fatima (2024). Raman measurements on gamma irradiated chestnut fruits. In ISRP-16-6th International Symposia on Radiation Physics. Lisboa. ISBN 978-989-9164-24-6
dc.identifier.isbn978-989-9164-24-6
dc.identifier.urihttp://hdl.handle.net/10198/36699
dc.language.isoeng
dc.peerreviewedyes
dc.publisherUniversidade Nova de Lisboa- Faculdade de Ciências e Tecnologia, Lisboa
dc.relationMountain Research Center - UIDB/00690/2020
dc.relationAssociate Laboratory for Sustainability and Tecnology in Mountain Regions - LA/P/0007/2020
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectRaman measurements
dc.subjectFood irradiation
dc.subjectGamma irradiation
dc.subjectChestnut fruits
dc.titleRaman measurements on gamma irradiated chestnut fruitseng
dc.typeconference object
dspace.entity.typePublication
oaire.awardNumberUIDB/00690/2020
oaire.awardNumberLA/P/0007/2020
oaire.awardTitleMountain Research Center - UIDB/00690/2020
oaire.awardTitleAssociate Laboratory for Sustainability and Tecnology in Mountain Regions - LA/P/0007/2020
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0007%2F2020/PT
oaire.citation.conferenceDate2024
oaire.citation.conferencePlaceUniversidade Nova de Lisboa- Faculdade de Ciências e Tecnologia, Lisboa, 1st- 5th September 2024 LISBON, Portugal
oaire.citation.endPage92
oaire.citation.startPage92
oaire.citation.titleISRP-16 16th International Symposia on Radiation Physics
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameAntonio
person.givenNameAmilcar L.
person.identifier.ciencia-id1014-5259-DE86
person.identifier.orcid0000-0001-8271-9964
person.identifier.ridJ-1960-2014
person.identifier.scopus-author-id44560921900
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
relation.isAuthorOfPublication4b23e496-8d11-4ff5-a8ec-e1c2235e5a28
relation.isAuthorOfPublication.latestForDiscovery4b23e496-8d11-4ff5-a8ec-e1c2235e5a28
relation.isProjectOfPublication29718e93-4989-42bb-bcbc-4daff3870b25
relation.isProjectOfPublication6255046e-bc79-4b82-8884-8b52074b4384
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