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Infusions and decoctions of mixed herbs used in folk medicine: synergism in antioxidant potential

2011Journal article Restricted access
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dc.contributor.authorGuimarães, Rafaela
dc.contributor.authorBarros, Lillian
dc.contributor.authorCarvalho, Ana Maria
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2011-10-25T13:49:59Z
dc.date.available2011-10-25T13:49:59Z
dc.date.issued2011
dc.description.abstractInfusions (herbal teas) and decoctions are frequently used to administer oral doses of herbs. Although some herbs are used as single ingredients, they are often prepared as mixtures, as reported by numerous ethnobotanical surveys. The present work was carried out to identify the different types of interaction (synergistic, additive and antagonistic effects) which may be found in the antioxidant activity of preparations from mixtures of the popular herbs Aloysia citrodora (lemon verbena), Foeniculum vulgare (fennel) and Mentha spicata (spearmint). Herbs were prepared using traditional methods, and the effects after different periods of storage, up to 120 days, were also evaluated. Antioxidant activity was evaluated using DPPH radical scavenging activity, reducing power, and inhibition of lipid peroxidation by the β-carotene-linoleate system and the TBARS assay. Known antioxidant compounds such as total phenolics, flavonoids, ascorbic acid and reducing sugars were also determined. Spearmint was found to be present in the herb mixtures with the greatest antioxidant activity and these also had the highest flavonoid content. The most potent antioxidant activity was found in combinations of different herbs, suggesting synergistic effects.por
dc.identifier.citationGuimarães, Rafaela; Barros, Lillian; Carvalho, Ana Maria; Ferreira, Isabel C.F.R. (2011). Infusions and decoctions of mixed herbs used in folk medicine: synergism in antioxidant potential. Phytotherapy Research. ISSN 0951-418X. 25:8, p. 1209-1214por
dc.identifier.doi10.1002/ptr.3366
dc.identifier.issn0951-418X
dc.identifier.urihttp://hdl.handle.net/10198/6243
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherWileypor
dc.subjectHerbal mixturespor
dc.subjectInfusions/Decoctionspor
dc.subjectSynergistic effectspor
dc.subjectAntioxidant activitypor
dc.titleInfusions and decoctions of mixed herbs used in folk medicine: synergism in antioxidant potentialpor
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F44609%2F2008/PT
oaire.citation.endPage1214por
oaire.citation.issue25:8por
oaire.citation.startPage1209por
oaire.citation.titlePhytotherapy Researchpor
oaire.fundingStreamSFRH
person.familyNameBarros
person.familyNameCarvalho
person.familyNameFerreira
person.givenNameLillian
person.givenNameAna Maria
person.givenNameIsabel C.F.R.
person.identifier469085
person.identifierID G-7399-2011
person.identifier144781
person.identifier.ciencia-id9616-35CB-D001
person.identifier.ciencia-idD31A-35AF-E2A9
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0001-5508-5935
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridJ-3600-2013
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id20336503900
person.identifier.scopus-author-id36868826600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspor
rcaap.typearticlepor
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