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Gamma radiation-induced effects on the recovery of pharmacologically active polyphenols from tuberaria lignosa medicinal plant

2017Conference object Open access
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dc.contributor.authorPinela, José
dc.contributor.authorPrieto Lage, Miguel A.
dc.contributor.authorBarros, Lillian
dc.contributor.authorAntonio, Amilcar L.
dc.contributor.authorCabo Verde, Sandra
dc.contributor.authorCarvalho, Ana Maria
dc.contributor.authorOliveira, Beatriz
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2017-09-22T10:17:14Z
dc.date.available2017-09-22T10:17:14Z
dc.date.issued2017
dc.description.abstractIonizing radiation has been used for many years as a safer and environmentally friendly alternative comparatively to chemical fumigants to decontaminate medicinal plants and other food commodities [1]. Perennial spotted rockrose (Tuberaria lignosa (Sweet) Samp.) is a highly quoted medicinal plant in the northeast region of Portugal rich in ellagitannin derivatives [2,3]. As polyphenols, these compounds play an important role in human nutrition and display several biological effects, including antioxidant, anti-inflammatory, antitumor, antibacterial, and anti-HIV replication activities [2-4]. However, little is known about the impact of ionizing radiation on the integrity and extractability of these high added-value compounds. This work aimed to investigate the effects of γ-rays irradiation on the extraction and/or degradation kinetics of ellagitannins from T. lignosa aerial parts. The plant material was submitted to irradiation doses up to 10 kGy in a cobalt-60 experimental chamber. Then, the non-irradiated and irradiated plant material was submitted to different solid-liquid extractions, according to a three-level full factorial design, using boiling water as extraction solvent. The ellagitannins were analyzed in a high-performance liquid chromatography (HPLC) system connected to a diode array detector (DAD) and a mass spectrometer (MS). Punicalin, punicalagin isomers, and punicalagin gallate isomers were the most abundant compounds. In general, the extractability of this group of phytochemicals was improved by the irradiation treatment (5 kGy) and longer extraction times (10 min). In addition, the 10 kGy dose did not induced adverse effects. In conclusion, this study demonstrated the suitability of γ-rays irradiation for preserving or improving the extractability of pharmacologically active compounds from T. lignosa aerial parts.pt_PT
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT) of Portugal and FEDER, under Programme PT2020, for financial support to CIMO (UID/AGR/00690/2013); to FCT/MEC for financial support to REQUIMTE/LAQV (UID/QUI/50006/2013 - POCI/01/0145/FEDER/007265); to FCT for the J. Pinela grant (SFRH/BD/92994/2013) and L. Barros contract; to the Xunta de Galicia for financial support to M. A. Prieto; C2TN (RECI/AAG-TEC/0400/2012 and UID/Multi/04349/2013 projects); International Atomic Energy Agency (IAEA - CRP D61024 - DEXAFI). The authors are also grateful to the Interreg España-Portugal for financial support through the Project 0377_Iberphenol_6_E.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPinela, José; Prieto, M.A.; Barros, Lillian; Antonio, Amilcar L.; Cabo Verde, Sandra; Carvalho, Ana Maria; Oliveira, M.B.P.P.; Ferreira, Isabel C. F. R. (2017). Gamma radiation-induced effects on the recovery of pharmacologically active polyphenols from tuberaria lignosa medicinal plant. In NUTECH'2017 - International Conference on Developments and Applications of Nuclear T. Kraków, Polandpt_PT
dc.identifier.urihttp://hdl.handle.net/10198/14516
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationRECOVERY OF THE SUSTAINABLE USE OF TRADITIONAL FOODS THROUGH EMERGING PRESERVATION TECHNOLOGIES
dc.relationApplication of Ionizing Radiation for a Sustainable Environment
dc.rights.urihttp://creativecommons.org/licenses/by-nd/4.0/pt_PT
dc.subjectTuberaria lignosapt_PT
dc.subjectγ-rays irradiationpt_PT
dc.subjectHot-water extractionpt_PT
dc.subjectEllagitanninspt_PT
dc.titleGamma radiation-induced effects on the recovery of pharmacologically active polyphenols from tuberaria lignosa medicinal plantpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleRECOVERY OF THE SUSTAINABLE USE OF TRADITIONAL FOODS THROUGH EMERGING PRESERVATION TECHNOLOGIES
oaire.awardTitleApplication of Ionizing Radiation for a Sustainable Environment
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FAGR%2F00690%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F50006%2F2013/PT
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oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F04349%2F2013/PT
oaire.citation.conferencePlaceKraków, Polandpt_PT
oaire.citation.titleNUTECH'2017 - International Conference on Developments and Applications of Nuclear Technologiespt_PT
oaire.fundingStream5876
oaire.fundingStream5876
oaire.fundingStream3599-PPCDT
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person.familyNamePinela
person.familyNamePrieto Lage
person.familyNameBarros
person.familyNameAntonio
person.familyNameCarvalho
person.familyNameFerreira
person.givenNameJosé
person.givenNameMiguel A.
person.givenNameLillian
person.givenNameAmilcar L.
person.givenNameAna Maria
person.givenNameIsabel C.F.R.
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project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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