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Variation in organic acids content in Tuberaria lignosa extracts induced by ionizing radiation and extraction procedures

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dc.contributor.authorPinela, José
dc.contributor.authorBarros, Lillian
dc.contributor.authorAntonio, Amilcar L.
dc.contributor.authorCarvalho, Ana Maria
dc.contributor.authorOliveira, Beatriz
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2015-02-23T12:17:54Z
dc.date.available2015-02-23T12:17:54Z
dc.date.issued2014
dc.description.abstractOrganic acids are important nutritional phytochemicals and some of them have biological activity, and thus a significant impact on human health. Additionally, they also act as precursors of phenolics and flavour compounds [1]. Tuberaria lignosa (Sweet) Samp. is one of the most quoted medicinal plants in several regions of the Iberian Peninsula, used to treat various diseases and ailments [2]. It was previously highlighted by our research group as a source of bioactive compounds [3], but its content in organic acids was still unknown. As biomolecules can be degraded by improper processing treatments or even extraction methods [3], this work aims to find variations in organic acids content in T. lignosa extracts induced by both ionizing radiation and extraction procedures. Dried T. lignosa samples, obtained in a Northeastern Portuguese region, were exposed to 0 (control), 1, 5 and 10 kGy of γ-rays in a 60Co experimental chamber, and then extracted by water infusion and decoction. The organic acids were analysed by ultrafast liquid chromatography coupled to a photodiode array detector (UFLC-PDA). Oxalic, quinic, malic, shikimic and succinic acids were quantified in all the extracts, being shikimic acid the most abundant. In infusion preparations, irradiated samples exhibited lower contents than the non-irradiated control (except for oxalic acid in the sample irradiated with 10 kGy). On the other hand, in decoctions, only oxalic acid was negatively affected by the irradiation treatment; while the other organic acids values remained unchanged or were improved. But, despite the negative effect of irradiation on samples extracted by infusion, the total organic acids content remained higher in these samples than in those extracted by decoction. Thus, infusion is preferable over decoction to extract organic acids from irradiated T. lignosa.por
dc.description.sponsorshipFCT for financial support to CIMO (PEst-OE/AGR/UI0690/2011), J. Pinela grant (SFRH/BD/92994/2013) and L. Barros contractpor
dc.identifier.citationPinela, José; Barros, Lillian; Antonio, Amilcar L.; Carvalho, Ana M.; Oliveira, M. Beatriz P.P.; Ferreira, Isabel C.F.R. (2014). Variation in organic acids content in Tuberaria lignosa extracts induced by ionizing radiation and extraction procedures. In 62nd International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research. Guimarães e Planta Medica.ISSN 0032-0943. 80.16, P2P34por
dc.identifier.doi10.1055/s-0034-1394869
dc.identifier.urihttp://hdl.handle.net/10198/11667
dc.language.isoengpor
dc.peerreviewedyespor
dc.relationSFRHIBD/92994/2013
dc.relationPEst-OEIAGR/U/06901/2011
dc.subjectTuberaria lignosapor
dc.subjectCistaceaepor
dc.subjectIberian ethnobotanypor
dc.subjectOrganic acidspor
dc.subjectGamma irradiationpor
dc.subjectExtraction methodspor
dc.titleVariation in organic acids content in Tuberaria lignosa extracts induced by ionizing radiation and extraction procedurespor
dc.typeconference paper
dspace.entity.typePublication
oaire.citation.conferencePlaceGuimarães, Portugalpor
oaire.citation.title62nd International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Researchpor
person.familyNamePinela
person.familyNameBarros
person.familyNameAntonio
person.familyNameCarvalho
person.familyNameFerreira
person.givenNameJosé
person.givenNameLillian
person.givenNameAmilcar L.
person.givenNameAna Maria
person.givenNameIsabel C.F.R.
person.identifier469085
person.identifierID G-7399-2011
person.identifier144781
person.identifier.ciencia-id771C-2B43-B108
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person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0001-7523-1637
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0001-8271-9964
person.identifier.orcid0000-0001-5508-5935
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridB-4466-2014
person.identifier.ridJ-3600-2013
person.identifier.ridJ-1960-2014
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id54392272800
person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id44560921900
person.identifier.scopus-author-id20336503900
person.identifier.scopus-author-id36868826600
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
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