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Dihydrochalcones and flavonolignans from Iryanthera lancifolia

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dc.contributor.authorSilva, DHS
dc.contributor.authorDavino, S. C.
dc.contributor.authorBarros, SBD
dc.contributor.authorYoshida, M.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:25:12Z
dc.date.available2014-05-20T15:25:12Z
dc.date.issued1999-11-01
dc.description.abstractAn extract from the pericarps of I. lancifolia afforded two dihydrochalcones (1 and 2) and two flavonolignans (3 and 4), with compounds 2-4 being of novel structure. The antioxidant activities of compounds 1-4 were evaluated through the measurement of malondialdehyde production, and Q(1/2) (concentration necessary far 50% inhibition of autoxidation) data were calculated. The Q(1/2) values obtained for 1-4 and the standard compounds a-tocopherol and quercetin were 6.9, 4.7, 5.5, 4.8, 12.1, and 7.6 mu g/mL, respectively.en
dc.description.affiliationUniv São Paulo, Inst Quim, BR-05599970 São Paulo, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Quim, BR-14800900 Araraquara, SP, Brazil
dc.description.affiliationUniv São Paulo, Fac Ciências Farmaceut, BR-05508900 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Quim, BR-14800900 Araraquara, SP, Brazil
dc.format.extent1475-1478
dc.identifierhttp://dx.doi.org/10.1021/np980509w
dc.identifier.citationJournal of Natural Products. Washington: Amer Chemical Soc, v. 62, n. 11, p. 1475-1478, 1999.
dc.identifier.doi10.1021/np980509w
dc.identifier.issn0163-3864
dc.identifier.urihttp://hdl.handle.net/11449/35654
dc.identifier.wosWOS:000083978600001
dc.language.isoeng
dc.publisherAmer Chemical Soc
dc.relation.ispartofJournal of Natural Products
dc.relation.ispartofjcr3.885
dc.relation.ispartofsjr1,368
dc.rights.accessRightsAcesso restritopt
dc.sourceWeb of Science
dc.titleDihydrochalcones and flavonolignans from Iryanthera lancifoliaen
dc.typeArtigopt
dcterms.licensehttp://pubs.acs.org/paragonplus/copyright/jpa_form_a.pdf
dcterms.rightsHolderAmer Chemical Soc
dspace.entity.typePublication
unesp.author.orcid0000-0002-1516-7765[1]
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt

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Araraquara - IQAR - Instituto de Química