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Antioxidant properties of Pterospartum tridentatum (L.) Willk and Cymbopogon citratus (Dc) Stapf.: evaluation of synergistic effects in a mixture of these species

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dc.contributor.authorRoriz, Custódio Lobo
dc.contributor.authorBarros, Lillian
dc.contributor.authorCarvalho, Ana Maria
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2014-03-31T09:15:40Z
dc.date.available2014-03-31T09:15:40Z
dc.date.issued2013
dc.description.abstractThe World Health Organization estimates that 80% of the world’s population uses medicinal plants in primary health needs. Pterospartum tridentatum (L.) Willk. (Fabaceae) and Cymbopogon citratus (DC) Stapf. (Poaceae) are examples of such medicinal plants. P. tridentatum is a small shrub, which can be found in the western part of the Iberian Peninsula and northern Morocco. Traditionally its flowers can be used to treat pneumonia, colds, bronchitis and hepatic disease [1]. C. citratus, commonly known as lemon grass, is a tall, aromatic, perennial densely tufted grass from Southeast Asia. There are many effects that can be attributed to this species, such as diuretics effects; it can also be used in hepatic disorders and to treat depression, flatulence and intestinal cramps [2]. The mixture of these two species opens a new panoply of therapeutic effects that can range from the treatment in case of stomach pain, cramping and flatulence, diarrhea, vomiting and flu. This is due to the interaction of these two species. In this study we aimed to evaluate the antioxidant activity of the single plants and of the mixture of the same plants (infusions and methanolic extracts. The antioxidant activity was accessed by four in vitro assays: scavenging effects on DPPH (2,2-diphenyl-1-picrylhydrazyl) radicals, reducing power, inhibition of β-carotene bleaching and inhibition of lipid peroxidation in brain cell homogenates by TBARS (thiobarbituric acid reactive substances) assay. In general, infusions revealed higher antioxidant activity than methanolic extracts, being higher for P. tridentatum. With the exception of the β-carotene bleaching inhibition assay, the mixture of the two plants revealed significant synergistic effects, allowing higher antioxidant activity. Although the interesting results obtained, the authors recommend a safe consume of these plant materials, including restricting the dose and duration of use to minimize the risks of potentially interactions with conventional medicines. Further studies will be conducted in order to identify the compounds responsible for the synergisms observed.por
dc.identifier.citationRoriz, Custódio Lobo; Barros, Lillian; Carvalho, Ana Maria; Ferreira, Isabel C.F.R. (2013). Antioxidant properties of Pterospartum tridentatum (L.) Willk and Cymbopogon citratus (Dc) Stapf.: evaluation of synergistic effects in a mixture of these species. In Encontro de Jovens Investigadores do Instituto Politécnico de Bragançapor
dc.identifier.urihttp://hdl.handle.net/10198/9414
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherInstituto Politécnico de Bragançapor
dc.relationStrategic Project - UI 690 - 2011-2012
dc.subjectAntioxidant activitypor
dc.subjectCymbopogon citratuspor
dc.subjectPterospartum tridentatumpor
dc.subjectSynergistic effectspor
dc.titleAntioxidant properties of Pterospartum tridentatum (L.) Willk and Cymbopogon citratus (Dc) Stapf.: evaluation of synergistic effects in a mixture of these speciespor
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleStrategic Project - UI 690 - 2011-2012
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FAGR%2FUI0690%2F2011/PT
oaire.citation.conferencePlaceBragança,Portugalpor
oaire.citation.titleEncontro de Jovens Investigadores do Instituto Politécnico de Bragançapor
oaire.fundingStream6817 - DCRRNI ID
person.familyNameRoriz
person.familyNameBarros
person.familyNameCarvalho
person.familyNameFerreira
person.givenNameCustódio Lobo
person.givenNameLillian
person.givenNameAna Maria
person.givenNameIsabel C.F.R.
person.identifier469085
person.identifierID G-7399-2011
person.identifier144781
person.identifier.ciencia-id9519-D97C-6B17
person.identifier.ciencia-id9616-35CB-D001
person.identifier.ciencia-idD31A-35AF-E2A9
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-4021-1078
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-id56151637600
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.typeconferenceObjectpor
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