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Helichrysum monizii Lowe: phenolic composition and antioxidant potential

2012Journal article Open access
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dc.contributor.authorGouveia, Sandra
dc.contributor.authorCastilho, Paula C.
dc.date.accessioned2021-03-31T12:02:33Z
dc.date.available2021-03-31T12:02:33Z
dc.date.issued2012
dc.description.abstractIntroduction – In Madeira Archipelago there are four endemic Helichyrsum species and three of them are used in the traditional medicine. Helichrysum monizii is a rare endemism with very scarce information available concerning its uses in the local traditional medicine. Objective – The aim of this work was to study for the first time Helichrysum monizii in terms of its antioxidant capacity and the identification of the phenolic compounds to which that activity is due. Methodology – Three different methods of extraction were performed and total phenolic and flavonoid contents of extracts were correlated to radical scavenging and antioxidant capacity by DPPH, ABTS, FRAP and β‐carotene assays. An HPLC‐DAD‐ESI/MSn method was employed for the separation and identification of the phenolic and flavonoid components. Results – The results revealed a high antioxidant potential mainly related to the phenolic profile of the plant. Polar components of methanol extracts of Helichrsyum monizii were detected by a high‐performance liquid chromatography/ electrospray ionisation tandem mass spectrometry (HPLC‐DAD‐ESI/MSn ) method. Thirty‐three compounds were identified and 19 of them were identified as quinic acid derivatives.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGouveia, S., & Castilho, P. C. (2012). Helichrysum monizii Lowe: phenolic composition and antioxidant potential. Phytochemical Analysis, 23(1), 72-83.pt_PT
dc.identifier.doi10.1002/pca.1326pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/3232
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.relationISOLAMENTO E CARACTERIZAÇÃO DE PRINCÍPIOS ACTIVOS DE PLANTAS PARA O COMBATE À TUBERCULOSE
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAntioxidantpt_PT
dc.subjectElectrospraypt_PT
dc.subjectFlavonoidspt_PT
dc.subjectHelichrysumpt_PT
dc.subjectPhenolicspt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.titleHelichrysum monizii Lowe: phenolic composition and antioxidant potentialpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleISOLAMENTO E CARACTERIZAÇÃO DE PRINCÍPIOS ACTIVOS DE PLANTAS PARA O COMBATE À TUBERCULOSE
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F24227%2F2005/PT
oaire.citation.endPage83pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage72pt_PT
oaire.citation.titlePhytochemical Analysispt_PT
oaire.citation.volume23pt_PT
person.familyNameGouveia-Figueira
person.familyNameCastilho
person.givenNameSandra
person.givenNamePaula C
person.identifierA-4412-2013
person.identifier.ciencia-id6D15-8C69-A2E0
person.identifier.orcid0000-0002-8116-2794
person.identifier.orcid0000-0002-8303-4286
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublicationd84fd917-438e-43bf-ac6f-256562481c05
relation.isAuthorOfPublication.latestForDiscoveryf17ed1c1-62a1-48be-8299-95e04f4a1c5c
relation.isProjectOfPublicatione32bdc44-7898-4a45-be04-7048bfb66579
relation.isProjectOfPublication.latestForDiscoverye32bdc44-7898-4a45-be04-7048bfb66579

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