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Effects of oral dosage form and storage period on the antioxidant properties of four species used in traditional herbal medicine

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dc.contributor.authorGuimarães, Rafaela
dc.contributor.authorBarreira, João C.M.
dc.contributor.authorBarros, Lillian
dc.contributor.authorCarvalho, Ana Maria
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2011-08-23T09:34:50Z
dc.date.available2011-08-23T09:34:50Z
dc.date.issued2011
dc.description.abstractHerbal infusions and decoctions in water are some of the most commonly consumed beverages in the world. Although water is not a good solvent for many of the active components in herbs, liquid preparations are rich in several bioactive compounds. Most of them have powerful antioxidant activity and have been related to medicinal herbs’ properties. Herein, decoctions and infusions in water of lemon-verbena (Aloysia citrodora) aerial parts and leaves, fennel (Foeniculum vulgare), pennyroyal (Mentha pulegium) and spearmint (Mentha spicata) aerial parts with different periods of storage (0, 30, 60 and 120 days), were prepared. The effects of the method of preparation and storage period in their antioxidant properties were analysed. For all the analysed species, infusions gave better results than the corresponding decoctions. Spearmint infusions showed the highest antioxidant properties, at all the storage periods, probably due to the highest levels and synergy between phenolics, flavonoids and ascorbic acid found in this sample. Linear discriminant analysis confirmed that the length of storage period has a significant influence in antioxidant activity and antioxidants content. Flavonoids and reducing sugars proved to be the parameters that most highly contribute to cluster individual groups according to different periods of storage.por
dc.identifier.citationGuimarães, Rafaela; Barreira, João C.M.; Barros, Lillian; Carvalho, Ana Maria; Ferreira, Isabel C.F.R. (2011). Effects of oral dosage form and storage period on the antioxidant properties of four species used in traditional herbal medicine. Phytotherapy Research. ISSN 0951-418X. 25:4, p. 484-492por
dc.identifier.doi10.1002/ptr.3284
dc.identifier.issn0951-418X
dc.identifier.urihttp://hdl.handle.net/10198/6029
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherWileypor
dc.subjectHerbal infusions and decoctionspor
dc.subjectAntioxidant activitypor
dc.subjectStorage periodpor
dc.subjectLinear discriminant analysispor
dc.titleEffects of oral dosage form and storage period on the antioxidant properties of four species used in traditional herbal medicinepor
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F44609%2F2008/PT
oaire.citation.endPage492por
oaire.citation.issue25por
oaire.citation.startPage484por
oaire.citation.titlePhytotherapy Researchpor
oaire.fundingStreamSFRH
person.familyNameBarreira
person.familyNameBarros
person.familyNameCarvalho
person.familyNameFerreira
person.givenNameJoão C.M.
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.orcid0000-0003-1233-0990
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0001-5508-5935
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridD-8269-2013
person.identifier.ridJ-3600-2013
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id54895546900
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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