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Honeybee-collected pollen from five Portuguese Natural Parks: palynological origin, phenolic content, antioxidant properties and antimicrobial activity

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dc.contributor.authorDias, Teresa
dc.contributor.authorMorais, Margarida
dc.contributor.authorMoreira, Leandro
dc.contributor.authorEstevinho, Leticia M.
dc.date.accessioned2011-07-01T13:36:29Z
dc.date.available2011-07-01T13:36:29Z
dc.date.issued2011
dc.description.abstractThe aim of this study was to determine the palynological origin, phenolic content, antioxidant properties and antibacterial activity of honeybee- collected pollen from five Portuguese Natural-Parks [Parque Nacional Peneda Geres (PNPG); Parque Natural do Montesinho (PNM); Parque Natural do Alvao (PNA); Parque Natural da Serra da Estrela (PNSE) and Parque Natural do Douro Internacional (PNDI)]. Eight families were found in the mixture of bee pollen: Rosaceae, Cistaceae, Boraginaceae, Asteraceae, Fagaceae, Ericaeae, Myrtaceae and Fabaceae. The phenolic compounds content, determined by the Folin-Ciocalteu method, varied between 10.5 and 16.8 mg of gallic acid equivalents/ g of extract (mg GAE/ g) found in bee pollen from PNM and PNDI, respectively. The free radical scavenging measured showed the highest effective extract - PNM with ECSO 2.16, followed by PND with 2.24 mg/ mL. In the 0-carotene bleaching assay the same behaviour as in the DPPH method was verified. We also verified that the presence of pollen differentially affected the growth of bacteria Gram-positive, Gram-negative and fetmentative yeasts under study, depending on the microorganism and the type of bee pollen used. This is an important study since, as far we know, it is the first time that Portuguese bee pollen from Natural Parks was studied, and their characterization can increase their economic value.
dc.identifier.citationDias, Teresa; Morais, Margarida; Moreira, Leandro; Estevinho, Leticia M. (2011). Honeybee-collected pollen from five Portuguese Natural Parks: palynological origin, phenolic content, antioxidant properties and antimicrobial activity. In I congresso Ibérico de Apicultura. Castelo Branco. ISBN 978-989-8196-15-6por
dc.identifier.isbn978-989-8196-15-6
dc.identifier.urihttp://hdl.handle.net/10198/5635
dc.language.isoengpor
dc.peerreviewedyespor
dc.titleHoneybee-collected pollen from five Portuguese Natural Parks: palynological origin, phenolic content, antioxidant properties and antimicrobial activitypor
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceCastelo Branco, Portugal.por
oaire.citation.titleI congresso Ibérico de Apicultura,Castelo Branco, Portugal.por
person.familyNameDias
person.familyNameEstevinho
person.givenNameTeresa
person.givenNameLetícia M.
person.identifier142703
person.identifier.ciencia-idBA14-09D6-A406
person.identifier.orcid0000-0002-9419-9561
person.identifier.orcid0000-0002-9249-1948
person.identifier.scopus-author-id56830642600
person.identifier.scopus-author-id6506577664
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
relation.isAuthorOfPublication87c9cae0-314d-4622-ba85-4d3ec5726606
relation.isAuthorOfPublication4a1d5ba2-1854-4ca5-89a4-73f35e964df9
relation.isAuthorOfPublication.latestForDiscovery87c9cae0-314d-4622-ba85-4d3ec5726606

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