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Antioxidant potential of two red seaweeds from the brazilian coasts

2011Journal article Restricted access
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dc.contributor.authorSouza, Bartolomeu W. S.
dc.contributor.authorCerqueira, Miguel A.
dc.contributor.authorMartins, Joana T.
dc.contributor.authorQuintas, Mafalda A. C.
dc.contributor.authorFerreira, António C. S.
dc.contributor.authorTeixeira, José A.
dc.contributor.authorVicente, António A.
dc.date.accessioned2012-01-26T15:33:02Z
dc.date.available2012-01-26T15:33:02Z
dc.date.issued2011
dc.description.abstractIn this work, in vitro antioxidant activity of two Brazilian red seaweeds, Gracilaria birdiae and Gracilaria cornea, was characterized. The total phenolic content, the radical-scavenging activity and the antioxidant activity were determined in two solvent extracts of the algae. Liquid chromatography-mass spectrometry (LC-MS/MS) allowed identification of important antioxidant compounds. The ethanol extract of G. birdiae was found to have the highest value of total phenolic content: 1.13 mg of gallic acid equiv (GAE)/g of Extract. The radical-scavenging activity of G. birdiae and G. cornea extracts has been evaluated at different extract concentrations; the IC50 values of ethanolic extracts of G. cornea and G. birdiae were 0.77 and 0.76 mg mL(-1), respectively, while for methanolic extracts, the IC50 values of G. cornea and G. birdiae were 0.86 and 0.76 mg mL(-1), respectively. The antioxidant activities of these two seaweeds' extracts as assessed by the beta-carotene-linoleic acid assay were equally high, achieving values of beta-carotene oxidation inhibition of up to 40%. Finally, in the methanolic extracts, LC-MS/MS allowed identification in both algae of two important antioxidants: apigenin and gallic acid.por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationSOUZA, Bartolomeu W. S....[et al] - Antioxidant potential of two red seaweeds from the brazilian coasts. Journal of Agricultural and Food Chemistry. ISSN 0021-8561.Vol. 59 (2011), p. 5589–5594por
dc.identifier.doi10.1021/jf200999n
dc.identifier.eissn1520-5118
dc.identifier.issn0021-8561
dc.identifier.urihttp://hdl.handle.net/10400.14/7631
dc.identifier.wosWOS:000290691300054
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAmerican Chemical Societypor
dc.relationDESENVOLVIMENTO E CARACTERIZAÇÃO DE NOVOS REVESTIMENTOS EDÍVEIS PARA PRESERVAÇÃO DA QUALIDADE DE QUEIJOS
dc.subjectAntioxidantpor
dc.subjectSeaweedspor
dc.subjectPhenolic contentpor
dc.titleAntioxidant potential of two red seaweeds from the brazilian coastspor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleDESENVOLVIMENTO E CARACTERIZAÇÃO DE NOVOS REVESTIMENTOS EDÍVEIS PARA PRESERVAÇÃO DA QUALIDADE DE QUEIJOS
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F23897%2F2005/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F32566%2F2006/PT
oaire.citation.endPage5594
oaire.citation.issue10
oaire.citation.startPage5589
oaire.citation.titleJournal of Agricultural and Food Chemistry
oaire.citation.volume59
oaire.fundingStreamSFRH
person.familyNameSOUZA
person.familyNameCerqueira
person.familyNameMartins
person.familyNameSilva Ferreira
person.familyNameTeixeira
person.familyNameVicente
person.givenNameBARTOLOMEU WARLENE SILVA
person.givenNameMiguel
person.givenNameJoana
person.givenNameAntonio Cesar
person.givenNameJosé
person.givenNameAntónio
person.identifier175018
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person.identifier.ridI-2134-2013
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person.identifier.scopus-author-id24342604200
person.identifier.scopus-author-id24823978500
person.identifier.scopus-author-id35424163100
person.identifier.scopus-author-id13402823200
person.identifier.scopus-author-id7005820757
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
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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