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Antioxidant properties of two Lactarius wild species from the Northeast of Portugal

dc.contributor.authorVieira, Vanessa
dc.contributor.authorReis, Filipa S.
dc.contributor.authorMartins, Anabela
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2013-09-10T09:24:24Z
dc.date.available2013-09-10T09:24:24Z
dc.date.issued2013
dc.description.abstractWild mushrooms are widely appreciated not only for their organoleptic and nutritional properties, but also for their medicinal potential due to the accumulation of bioactive compounds. They have been described as a source of many antioxidant compounds such as phenolic compounds, tocopherols, ascorbic acid and carotenoids (1]. In the present work, the antioxidant properties of two wild Lactarius species from the Northeast of Portugal (Lactarius citroleus and Lactarius plumbeus) were evaluated for the first time, allowing the comparison between these two species. The antioxidant properties were determined through five different assays. The reducing power of the samples was assessed through the Folin-Ciocalteu (or total phenolics) and the Ferricyanide/Prussian blue assays. To evaluate the radical scavenging activity, the DPPH-2,2- diphenyl-1-picrylhydrazylassay was applied. Lipid peroxidation inhibition was measured through two different assays: β-carotene/linoleate (or β-carotene bleaching inhibition) and TBARSthiobarbituric- acid-reactive-species assays. Although L. plumbeus has shown the highest content in total phenolics (22.02 mg of gallic acid equivalents/g extract), L. citroleus presented the highest reducing power determined by the Ferricyanide/Prussian blue assay (EC50=1 .53 mg/ml ). L. plumbeus revealed the highest radical scavenging activity (EC50=4.18 mg/ml) as also the highest lipid peroxidation inhibition measured by β-carotene/linoleate assay (EC50=4.92 mg/ml). Nevertheless the lowest EC50 value for TSARS assay was revealed by L. citroleus (0.57 mg/ml). This study contributes for the inventorying of the wild mushroom species from the Northeast of Portugal, providing more information about the antioxidant potential of these natural matrices.por
dc.description.sponsorshipFCT (Portugal) and COMPETE/QREN/EU for financial support through PTDC/AGR/ALI/11 0062/2009 research project and PEst-OE/AGR/UI0690/2011 CIMO strategic projectpor
dc.identifier.citationVieira, Vanessa; Reis, Filipa S.; Martins, Anabela; Ferreira, Isabel C.F.R. (2013). Antioxidant properties of two Lactarius wild species from the Northeast of Portugal. In 1st Symposium on Medicinal Chemistry. Bragapor
dc.identifier.urihttp://hdl.handle.net/10198/8702
dc.language.isoengpor
dc.peerreviewedyespor
dc.relationPortuguese Wild Mushrooms: Chemical characterization and functional study of antiproliferative and proapoptotic properties in cancer cell lines
dc.relationStrategic Project - UI 690 - 2011-2012
dc.titleAntioxidant properties of two Lactarius wild species from the Northeast of Portugalpor
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitlePortuguese Wild Mushrooms: Chemical characterization and functional study of antiproliferative and proapoptotic properties in cancer cell lines
oaire.awardTitleStrategic Project - UI 690 - 2011-2012
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FAGR-ALI%2F110062%2F2009/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FAGR%2FUI0690%2F2011/PT
oaire.citation.conferencePlaceBraga, Portugalpor
oaire.citation.title1st Symposium on Medicinal Chemistry of University of Minhopor
oaire.fundingStream5876-PPCDTI
oaire.fundingStream6817 - DCRRNI ID
person.familyNameReis
person.familyNameMartins
person.familyNameFerreira
person.givenNameFilipa S.
person.givenNameAnabela
person.givenNameIsabel C.F.R.
person.identifier144781
person.identifier.ciencia-id391F-AFE1-64C7
person.identifier.ciencia-id7B18-A810-6B93
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-9159-0530
person.identifier.orcid0000-0001-6218-4413
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridI-2093-2013
person.identifier.ridG-5488-2013
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id36982144400
person.identifier.scopus-author-id7203013518
person.identifier.scopus-author-id36868826600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
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