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A comparison of the bioactivity and phytochemical profile of three different cultivars of globe amaranth: red, white, and pink

dc.contributor.authorLiberal, Ângela
dc.contributor.authorCalhelha, Ricardo C.
dc.contributor.authorPereira, Carla
dc.contributor.authorAdega, Filomena
dc.contributor.authorBarros, Lillian
dc.contributor.authorDueñas, Montserrat
dc.contributor.authorSantos-Buelga, Celestino
dc.contributor.authorAbreu, Rui M.V.
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2016-09-30T09:10:08Z
dc.date.available2016-09-30T09:10:08Z
dc.date.issued2016
dc.description.abstractThe phytochemical profiles and bioactivities of red, white and pink globe amaranth (Gomphrena haageana K., Gomphrena globosa var. albiflora and Gomphrena sp., respectively), much less studied than the purple species (G. globosa L.), were compared. The chemical characterization of the samples included the analysis of macronutrients and individual profiles of sugars, organic acids, fatty acids, tocopherols, and phenolic compounds. Their bioactivity was evaluated by determining the antioxidant and anti-inflammatory activities; the absence of cytotoxicity was also determined. Red and pink samples showed the highest sugar content. Otherwise, the white sample gave the highest level of organic acids, and together with the pink one showed the highest tocopherol and PUFA levels. Quercetin-3-O-rutinoside was the major flavonol in white and pink samples, whereas a tetrahydroxy-methylenedioxyflavone was the major compound in the red variety, which revealed a different phenolic profile. The pink globe amaranth hydromethanolic extract revealed the highest antioxidant activity, followed by those of red and white samples. The anti-inflammatory activity was more relevant in red and pink varieties. None of the samples presented toxicity in liver cells. Overall, these samples can be used in bioactive formulations against inflammatory processes and in free radical production.pt_PT
dc.description.sponsorshipThe authors are grateful to Foundation for Science and Technology (FCT, Portugal) for financial support to the research center CIMO (strategic project PEst-OE/AGR/UI0690/2014), R. Calhelha grant (SFRH/BPD/68344/2010) and L. Barros researcher contract under “Programa Compromisso com Ciência – 2008”.pt_PT
dc.identifier.citationLiberal, Ângela; Calhelha, Ricardo C.; Pereira, Carla; Adega, Filomena; Barros, Lillian; Dueñas, Montserrat; Santos-Buelga, Celestino; Abreu, Rui M.V.; Ferreira, Isabel C.F.R. (2016). A comparison of the bioactivity and phytochemical profile of three different cultivars of globe amaranth: red, white, and pink. Food & Function. ISSN 2042-6496. 7:2, p. 679-688pt_PT
dc.identifier.doi10.1039/c5fo01342apt_PT
dc.identifier.issn2042-6496
dc.identifier.urihttp://hdl.handle.net/10198/13347
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.titleA comparison of the bioactivity and phytochemical profile of three different cultivars of globe amaranth: red, white, and pinkpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/PEst-OE%2FAGR%2FUI0690%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F68344%2F2010/PT
oaire.citation.issue2pt_PT
oaire.citation.startPage679-88pt_PT
oaire.citation.titleFood & Functionpt_PT
oaire.citation.volume7pt_PT
oaire.fundingStream5876
oaire.fundingStreamSFRH
person.familyNameLiberal
person.familyNameCalhelha
person.familyNamePereira
person.familyNameBarros
person.familyNameAbreu
person.familyNameFerreira
person.givenNameÂngela
person.givenNameRicardo C.
person.givenNameCarla
person.givenNameLillian
person.givenNameRui M.V.
person.givenNameIsabel C.F.R.
person.identifier1415151
person.identifier469085
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person.identifier.ciencia-id9616-35CB-D001
person.identifier.ciencia-id0F19-0DE2-12A2
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-9764-4894
person.identifier.orcid0000-0002-6801-4578
person.identifier.orcid0000-0003-0093-771X
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0002-7745-8015
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridJ-2172-2014
person.identifier.ridK-1629-2016
person.identifier.ridJ-3600-2013
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person.identifier.scopus-author-id6507978333
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person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id7003290613
person.identifier.scopus-author-id36868826600
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.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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