Quick preparative separation of natural naphthopyranones with antioxidant activity by high-speed counter-current chromatography

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dc.contributor.authorLeitão, Gilda G.
dc.contributor.authorLeitão, Suzana G.
dc.contributor.authorVilegas, Wagner [UNESP]
dc.contributor.institutionUniversidade Federal do Rio de Janeiro (UFRJ)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:20:31Z
dc.date.available2014-05-27T11:20:31Z
dc.date.issued2002-11-01
dc.description.abstractThe natural naphthopyranones paepalantine (1), paepalantine-9O-β-D-glucopyranoside (2) and paepalantine-9-O-β-D-allopyranosyl-(1→6)-O-β-D-glucopyranoside (3) were separated in a preparative scale from the ethanolic extract of the capitula of Paepalanthus bromelioides by high-speed counter-current chromatography (HSCCC). The solvent system used was composed of water-ethanol-ethyl acetate-hexane (10:4:10:4, v/v/v/v). This technique led to the separation of the three different naphthopyranone glycosides in pure form in approximately 7 hours. Paepalantine showed a good antioxidant activity when assayed by the DPPH radical spectrophotometric assay.en
dc.description.affiliationNucleo de Pesq. de Produtos Naturais UFRJ, Rio de Janeiro, RJ
dc.description.affiliationFaculdade de Farmácia Depto. de Produtos Naturais e A. UFRJ, Rio de Janeiro, RJ
dc.description.affiliationInstituto de Quim. de Araraquara UNESP Depto. de Quim. Organica, CP 355, 14801-1970 Araraquara, SP
dc.description.affiliationUnespInstituto de Quim. de Araraquara UNESP Depto. de Quim. Organica, CP 355, 14801-1970 Araraquara, SP
dc.format.extent1051-1055
dc.identifierhttp://www.znaturforsch.com/ac/v57c/s57c1051.pdf
dc.identifier.citationZeitschrift fur Naturforschung - Section C Journal of Biosciences, v. 57, n. 11-12, p. 1051-1055, 2002.
dc.identifier.file2-s2.0-0036875343.pdf
dc.identifier.issn0939-5075
dc.identifier.orcid0000-0003-3032-2556
dc.identifier.scopus2-s2.0-0036875343
dc.identifier.urihttp://hdl.handle.net/11449/67016
dc.identifier.wosWOS:000181126300018
dc.language.isoeng
dc.relation.ispartofZeitschrift fur Naturforschung - Section C Journal of Biosciences
dc.relation.ispartofjcr0.882
dc.relation.ispartofsjr0,288
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAntioxidant Activity
dc.subjectHigh-Speed Counter-Current Chromatography
dc.subjectNaphthopyranone Glycosides
dc.subjectAntioxidants
dc.subjectBrazil
dc.subjectChromatography, High Pressure Liquid
dc.subjectChromatography, Thin Layer
dc.subjectCountercurrent Distribution
dc.subjectEriocaulaceae
dc.subjectEthanol
dc.subjectFree Radicals
dc.subjectGlycosides
dc.subjectHeterocyclic Compounds, 3-Ring
dc.subjectNaphthalenes
dc.subjectPlant Extracts
dc.subjectPyrones
dc.subjectPaepalanthus
dc.titleQuick preparative separation of natural naphthopyranones with antioxidant activity by high-speed counter-current chromatographyen
dc.typeArtigo
unesp.author.orcid0000-0003-3032-2556[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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