Hydroxycinnamic Acid Amide Derivatives, Phenolic Compounds and Antioxidant Activities of Extracts of Pollen Samples from Southeast Brazil

dc.contributor.authorNegri, Giuseppina [UNIFESP]
dc.contributor.authorTeixeira, Erica Weinstein
dc.contributor.authorMarques Florencio Alves, Maria Luisa Teles
dc.contributor.authorCamargo Carmello Moreti, Augusta Carolina de
dc.contributor.authorOtsuk, Ivani Pozar
dc.contributor.authorBorguini, Renata Galhardo
dc.contributor.authorSalatino, Antonio
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionSecretaria Agr & Abastecimento Estado São Paulo
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionInst Biosiences
dc.date.accessioned2016-01-24T14:16:46Z
dc.date.available2016-01-24T14:16:46Z
dc.date.issued2011-05-25
dc.description.abstractSeven bee pollen samples (C1-C7) with different palynological sources were harvested from Pindamonhangaba municipality (Southeast Brazil). Methanol extracts of untreated samples (control), samples frozen at -18 degrees C and samples frozen and then dried were analyzed by HPLC/PAD/ESI/MS/MS. Flavonoid diglycosides of quercetin, kaempferol, isorhamnetin and patuletin were detected, together with hydroxycinnamic acid amide derivatives, such as N',N '',N'''-tris-p-feruloylspermidine and N',N '',N'''-tris-p-coumaroylspermidine. Distinct phenolic profiles characterized the analyzed samples, but no differences were noted as resulting from different treatments. Total phenolic contents determined with the Folin-Ciocalteau reagent ranged from 1.7 to 2.2%. Antioxidant activities above 75%, based on the DPPH method, were observed for all extracts, not correlated with total phenolic contents. Among samples from the same origin, those frozen were more active than samples untreated (control), and the samples frozen and then dried were the most active.en
dc.description.affiliationUniversidade Federal de São Paulo, CEBRID UNIFESP, Dept Psychobiol, São Paulo, Brazil
dc.description.affiliationSecretaria Agr & Abastecimento Estado São Paulo, Agencia Paulista Tecnol Agronegocios, São Paulo, Brazil
dc.description.affiliationEMBRAPA Agroind Alimentos, Empresa Brasileira Pesquisa Agropecuaria, Rio de Janeiro, Brazil
dc.description.affiliationInst Biosiences, Dept Bot, São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, CEBRID UNIFESP, Dept Psychobiol, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent5516-5522
dc.identifierhttp://dx.doi.org/10.1021/jf200602k
dc.identifier.citationJournal of Agricultural and Food Chemistry. Washington: Amer Chemical Soc, v. 59, n. 10, p. 5516-5522, 2011.
dc.identifier.doi10.1021/jf200602k
dc.identifier.issn0021-8561
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/33712
dc.identifier.wosWOS:000290691300045
dc.language.isoeng
dc.publisherAmer Chemical Soc
dc.relation.ispartofJournal of Agricultural and Food Chemistry
dc.rightsAcesso aberto
dc.subjectApis melliferaen
dc.subjectbee pollenen
dc.subjectflavonoids diglycosidesen
dc.subjectN ',N '',N '''-tris-p-feruloylspermidineen
dc.titleHydroxycinnamic Acid Amide Derivatives, Phenolic Compounds and Antioxidant Activities of Extracts of Pollen Samples from Southeast Brazilen
dc.typeArtigo
Arquivos
Coleções