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Evaluation of the antioxidant activity of Thymbra capitata, Thymus mastichina and Thymus camphoratus essential oils

dc.contributor.authorMiguel, Maria Graça
dc.contributor.authorFalcato Simoes, M.
dc.contributor.authorFigueiredo, A. C.
dc.contributor.authorBarroso, J. G.
dc.contributor.authorPedro, L. G.
dc.contributor.authorCarvalho, L. M.
dc.date.accessioned2015-06-15T14:53:30Z
dc.date.available2015-06-15T14:53:30Z
dc.date.issued2005
dc.description.abstractThe essential oils of Thymbra capitata, Thymus mastichina and Thymus camphoratus, collected during the vegetative phase, were predominantly composed of oxygen-containing monoterpenes (61-76%). Carvacrol was the dominant component of T. capitata oil (72%), 1,8-cineole (49%) dominated that of Th. mastichina, and linalool (17%), linalyl acetate (15%) and 1,8-cineole (11%) dominated Th. camphoratus oil. The essential oils and butylated hydroxyanisole (BHA) showed weakfree radical scavenging ability in peanut oil when compared to butylated hydroxytoluene (BHT). In sunflower oil, both the essential oils and the synthetic antioxidants exhibited relatively low free radical scavenging ability. Significant differences in the acid value were detected after several days' storage. From day 55 of storage until the end of the experiment, the acid value for both peanut and sunflower oil with added essential oils was similar and significantly lower than that of the control, but significantly higher than those with added BHA and BHT.
dc.identifier.doihttps://dx.doi.org/10.1111/j.1745-4522.2005.00015.x
dc.identifier.issn1065-7258
dc.identifier.otherAUT: MGM00322;
dc.identifier.urihttp://hdl.handle.net/10400.1/6310
dc.language.isoeng
dc.peerreviewedyes
dc.publisherBlackwell Publising
dc.relation.isbasedonP-000-1ME
dc.titleEvaluation of the antioxidant activity of Thymbra capitata, Thymus mastichina and Thymus camphoratus essential oils
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage197
oaire.citation.startPage181
oaire.citation.titleJournal of Food Lipids
oaire.citation.volume12
person.familyNameMiguel
person.givenNameMaria da Graça
person.identifier.ciencia-id6110-6FE7-DF28
person.identifier.orcid0000-0003-2507-4228
person.identifier.scopus-author-id35562054500
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication2507350f-9e60-4d4a-a096-53e58d93549c
relation.isAuthorOfPublication.latestForDiscovery2507350f-9e60-4d4a-a096-53e58d93549c

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