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Stability of ascorbic acid, tocopherols and total folates in irradiated buckler sorrel leaves during refrigerated storage

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dc.contributor.authorPinela, José
dc.contributor.authorBarros, Lillian
dc.contributor.authorMorales, Patricia
dc.contributor.authorCabo Verde, Sandra
dc.contributor.authorAntonio, Amilcar L.
dc.contributor.authorCarvalho, Ana Maria
dc.contributor.authorOliveira, Beatriz
dc.contributor.authorCámara Hurtado, Montaña
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2018-10-29T11:27:15Z
dc.date.available2018-10-29T11:27:15Z
dc.date.issued2018
dc.description.abstractReady-to-eat vegetables have become more popular in consumers’ market baskets due to their convenience and health benefits. The growth of this sector has promoted the introduction of new foods and the adoption of more efficient and eco-friendly postharvest technologies such as irradiation. However, a common consumer concern is whether irradiation adversely affects the nutritional value of food. In this sense, the suitability of post-packaging irradiation for preserving buckler sorrel (Rumex induratus Boiss. & Reut.) vitamins during refrigerated storage was evaluated. Buckler sorrel samples gathered in the Northeastern region of Portugal were hand-picked and a portion was immediately analyzed (fresh control). The remaining fresh material was packaged in polyethylene bags, irradiated at doses up to 6 kGy in a 60Co experimental chamber, and stored at 4 ºC for 12 d. A non-irradiated control followed the experiment. Ascorbic acid, tocopherols and total folates were analyzed by HPLC techniques. The four tocopherol isoforms were identified; α-tocopherol was the most abundant one in the fresh control, followed by γ-tocopherol. The treatment caused a decrease in the α-tocopherol levels, which was more marked with the consequent increase in dose. Interestingly, the non-irradiated stored control had the highest total tocopherol content (promoted especially by the γ isoform). In turn, ascorbic acid was more sensitive to irradiation than to storage time, while folates were only affected by the 2 kGy dose. Therefore, packaging and refrigeration were enough for the preservation of buckler sorrel vitamins for 12 d.pt_PT
dc.description.sponsorshipAcknowledgments: to FCT (Portugal) and FEDER under Programme PT2020 for financial support to CIMO (UID/AGR/00690/2013), REQUIMTE/LAQV (UID/QUI/50006/2013 - POCI/01/0145/FEDER/007265) and C2TN (UID/Multi/04349/2013), and to the J. Pinela grant (UID/AGR/00690/2013_DNAABN) and L. Barros research contract. To ALIMNOVA Research Group (Project UCM-252/2017).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPinela, José; Barros, Lillian; Morales, Patrícia; Cabo Verde, Sandra; Antonio, Amilcar L.; Carvalho, Ana Maria; Oliveira, M.B.P.P.; Cámara, Montanhã; Ferreira, Isabel C.F.R. (2018). Stability of ascorbic acid, tocopherols and total folates in irradiated buckler sorrel leaves during refrigerated storage. In UNIFood Conference. Belgrado, Sérviapt_PT
dc.identifier.urihttp://hdl.handle.net/10198/18129
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectStability of ascorbic acidpt_PT
dc.subjectRumex induratuspt_PT
dc.titleStability of ascorbic acid, tocopherols and total folates in irradiated buckler sorrel leaves during refrigerated storagept_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FAGR%2F00690%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F50006%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F04349%2F2013/PT
oaire.citation.conferencePlaceBelgrado, Sérviapt_PT
oaire.citation.titleUNIFood Conferencept_PT
oaire.fundingStream5876
oaire.fundingStream5876
oaire.fundingStream5876
person.familyNamePinela
person.familyNameBarros
person.familyNameAntonio
person.familyNameCarvalho
person.familyNameFerreira
person.givenNameJosé
person.givenNameLillian
person.givenNameAmilcar L.
person.givenNameAna Maria
person.givenNameIsabel C.F.R.
person.identifier469085
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person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0001-7523-1637
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0001-8271-9964
person.identifier.orcid0000-0001-5508-5935
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridB-4466-2014
person.identifier.ridJ-3600-2013
person.identifier.ridJ-1960-2014
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id54392272800
person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id44560921900
person.identifier.scopus-author-id20336503900
person.identifier.scopus-author-id36868826600
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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