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Assessment of the nitrogen fertilization effect on bioactive compounds of frozen fresh and dried samples of Stevia rebaudiana Bertoni

2018Artigo científico Acesso aberto
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dc.contributor.authorBarroso, Marisa
dc.contributor.authorMartins, Natália
dc.contributor.authorBarros, Lillian
dc.contributor.authorAntonio, Amilcar L.
dc.contributor.authorRodrigues, M.A.
dc.contributor.authorSousa, Maria João
dc.contributor.authorSantos-Buelga, Celestino
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2018-01-29T10:00:00Z
dc.date.accessioned2018-01-29T10:39:45Z
dc.date.available2018-01-29T10:00:00Z
dc.date.available2018-01-29T10:39:45Z
dc.date.issued2018
dc.description.abstractThe present study aims to assess the effect of different nitrogen (N) rates on the chemical composition and antioxidant properties of stevia frozen fresh and dried leaves, and to define the best growing conditions to maximize the levels of bioactive compounds. In general, processing affects more significantly the tocopherol and sugar contents than N fertilization. The most abundant sugars were xylose, arabinose + fructose and sucrose, presenting dried samples with higher contents than frozen fresh ones, while the latter better retained tocopherols than dry samples. Regarding phenolic compounds, greater levels were found in dried samples and in those fertilized with 25 kg N ha −1 . Leaves from plants fertilized with 25 and 50 kg N ha −1 also evidenced higher antioxidant activity, which seemed to be influenced by the phenolic composition. In general, N fertilization provides an improvement in the chemical composition and bioactive potential of stevia leaves.pt_PT
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) and FEDER under Programme PT2020 for financial support to CIMO (UID/AGR/00690/2013) and to L. Barros contract. The authors are also grateful to the Interreg España-Portugal for financial support through the project 0377_Iberphenol_6_E. The GIP-USAL is financially supported by the Spanish Government through the project AGL2015-64522-C2-2-R.
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBarroso, Marisa R.; Martins, Natália; Barros, Lillian; Antonio, Amilcar L.; Rodrigues, M.A.; Sousa, Maria João; Santos-Buelga, Celestino; Ferreira, Isabel C.F.R. (2018). Assessment of the nitrogen fertilization effect on bioactive compounds of frozen fresh and dried samples of Stevia rebaudiana Bertoni. Food Chemistry. ISSN 0308-8146. 243, p. 208-213
dc.identifier.doi10.1016/j.foodchem.2017.09.137pt_PT
dc.identifier.issn0308-8146
dc.identifier.urihttp://hdl.handle.net/10198/15086
dc.language.isoeng
dc.peerreviewedyespt_PT
dc.titleAssessment of the nitrogen fertilization effect on bioactive compounds of frozen fresh and dried samples of Stevia rebaudiana Bertonien_EN
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUID/AGR/00690/2013
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FAGR%2F00690%2F2013/PT
oaire.fundingStream5876
person.familyNameBarros
person.familyNameAntonio
person.familyNameRodrigues
person.familyNameSousa
person.familyNameFerreira
person.givenNameLillian
person.givenNameAmilcar L.
person.givenNameManuel Ângelo
person.givenNameMaria João
person.givenNameIsabel C.F.R.
person.identifier469085
person.identifier144781
person.identifier.ciencia-id9616-35CB-D001
person.identifier.ciencia-id1014-5259-DE86
person.identifier.ciencia-id371D-DF0D-8D68
person.identifier.ciencia-idD91E-3571-3979
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0001-8271-9964
person.identifier.orcid0000-0002-5367-1129
person.identifier.orcid0000-0002-9946-4926
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridJ-3600-2013
person.identifier.ridJ-1960-2014
person.identifier.ridO-1721-2016
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id44560921900
person.identifier.scopus-author-id35270106800
person.identifier.scopus-author-id55230282700
person.identifier.scopus-author-id36868826600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccessen_EN
rcaap.typearticlept_PT
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