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Ascorbic acid and flavanone glycosides in citrus: Relationship with antioxidant activity

2009Journal article Restricted access
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dc.contributor.authorMiguel, Maria Graça
dc.contributor.authorDuarte, Amílcar
dc.contributor.authorNunes, S.
dc.contributor.authorSustelo, V.
dc.contributor.authorMartins, D.
dc.contributor.authorDandlen, S. A.
dc.date.accessioned2015-06-15T14:53:30Z
dc.date.available2015-06-15T14:53:30Z
dc.date.issued2009
dc.description.abstractThe effects of cultivar and orchard on the content of ascorbic acid and flavanone glycosides as well as on the antioxidant activity of citrus juices were studied. Ascorbic acid and flavanone glycosides were determined using HPLC method. For antiradicalar activity evaluation, TAEC and ORAC methods were used. Citrus of 'Valencia late' from Faro and 'D. Joao' presented the highest levels of hesperidin in contrast to the citrus of 'Valencia late' from Silves with 0.4 mg/ml, a value closer to those of Navel oranges 'Navelate' and 'Lanelate'. Citrus of 'Valencia late' from Silves and 'D. Joao' presented the lowest levels of narirutin. 'Ortanique' and 'Encore' cultivars were poorer in ascorbic acid compared with the oranges. When the TEAC method was used for the determination of antioxidant activity, 'Valencia late' from Faro presented the best activity. A good relation was observed between antiradical activity measured through the TEAC method and the amount of ascorbic acids in samples. None relation was found between the levels of flavanones and antiradical activity. When the ORAC method was applied, the best activity was found for 'Navelate' and 'Encore' samples and practically none relation between this method and the amounts of ascorbic acid and flavanones was found.
dc.identifier.issn1459-0255
dc.identifier.otherAUT: MGM00322; ADU00268;
dc.identifier.urihttp://hdl.handle.net/10400.1/6314
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWFL Publisher
dc.relation.isbasedonP-003-M69
dc.titleAscorbic acid and flavanone glycosides in citrus: Relationship with antioxidant activity
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage227
oaire.citation.issue2
oaire.citation.startPage222
oaire.citation.titleJournal of Food, Agriculture and Environment
oaire.citation.volume7
person.familyNameMiguel
person.familyNameDuarte
person.givenNameMaria da Graça
person.givenNameAmilcar
person.identifier.ciencia-id6110-6FE7-DF28
person.identifier.ciencia-id081B-5FD8-0E51
person.identifier.orcid0000-0003-2507-4228
person.identifier.orcid0000-0002-2763-1916
person.identifier.ridF-1472-2010
person.identifier.scopus-author-id35562054500
person.identifier.scopus-author-id7102602102
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication2507350f-9e60-4d4a-a096-53e58d93549c
relation.isAuthorOfPublication88280e66-023a-49f6-8081-c827a15900ce
relation.isAuthorOfPublication.latestForDiscovery2507350f-9e60-4d4a-a096-53e58d93549c

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