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Dracaena draco L. fruit: phytochemical and antioxidant activity assessment

2011Journal article Restricted access
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dc.contributor.authorSilva, Branca M.
dc.contributor.authorSantos, Rui P.
dc.contributor.authorMendes, Lídia S.
dc.contributor.authorGuedes de Pinho, Paula
dc.contributor.authorValentão, Patrícia
dc.contributor.authorAndrade, Paula B.
dc.contributor.authorPereira, José A.
dc.contributor.authorCarvalho, Márcia
dc.date.accessioned2021-07-05T08:30:16Z
dc.date.available2021-07-05T08:30:16Z
dc.date.issued2011
dc.description.abstractThe present study reports for the first time the metabolite profile and antioxidant activity of aqueous extract obtained from Dracaena draco L. fruit. Volatiles profile was determined by HS-SPME/GC-IT-MS, with 9 compounds being identified, distributed by several distinct chemical classes: 1 alcohol, 3 aldehydes, 2 carotenoid derivatives, and 3 terpenic compounds. Aldehydes constituted the most abundant class in this exotic berry, representing 59% of total identified volatile compounds. Phenolics profile was determined by HPLC/DAD and 5 constituents were identified: 5-O-caffeoylquinic, 3,5-O-dicaffeoylquinic, ferulic and sinapic acids, and quercetin-3-O-rutinoside. The major phenolic compound is quercetin-3-O-rutinoside, comprising 42% of the total phenolic content. Organic acids composition was also characterized, by HPLC-UV, and oxalic, citric, l-ascorbic, malic, quinic and shikimic acids were determined. The most abundant is quinic acid, representing 39% of the total organic acid content. The antioxidant potential of this matrix was assessed by (i) reducing power of Fe3+/ferricyanide complex, (ii) scavenging effect on DPPH free radicals, and (iii) ability to inhibit the 2,2´-azobis(2-amidinopropane) dihydrochloride (AAPH)-induced oxidative hemolysis in human erythrocytes. Strawberry (Fragaria × ananassa Duch. cv. Camarosa) extract was used for comparison purposes. All assay models showed remarkable concentration dependent antioxidant activity, reducing power and radical scavenging efficiency for D. draco fruit, being invariably higher than that of strawberry extract. This is the first report showing that D. draco fruit is a promising new antioxidant agent.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.foodres.2010.09.031pt_PT
dc.identifier.issn0963-9969
dc.identifier.urihttp://hdl.handle.net/10284/10047
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.subjectDracaena draco fruitpt_PT
dc.subjectVolatilespt_PT
dc.subjectPolyphenolspt_PT
dc.subjectOrganic acidspt_PT
dc.subjectHemolysis inhibitionpt_PT
dc.subjectAntioxidant activitypt_PT
dc.titleDracaena draco L. fruit: phytochemical and antioxidant activity assessmentpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage2189pt_PT
oaire.citation.issue7pt_PT
oaire.citation.startPage2182pt_PT
oaire.citation.titleFood Research Internationalpt_PT
oaire.citation.volume44pt_PT
person.familyNameSilva
person.familyNameCarvalho
person.givenNameBranca Maria
person.givenNameMarcia
person.identifier1033309
person.identifier2017111
person.identifier.ciencia-idBD1F-B24D-89A9
person.identifier.ciencia-id8B10-171E-E63E
person.identifier.orcid0000-0002-5610-8024
person.identifier.orcid0000-0001-9884-4751
person.identifier.ridD-5999-2013
person.identifier.scopus-author-id7005615589
person.identifier.scopus-author-id7201413997
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication26c68872-1849-4895-a48d-72ccffbc02df
relation.isAuthorOfPublication3837b828-ba57-47f7-a811-cce65e4922c6
relation.isAuthorOfPublication.latestForDiscovery26c68872-1849-4895-a48d-72ccffbc02df

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