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dc.contributor.author
Nagahama, Nicolas
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dc.contributor.author
Gastaldi, Bruno
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dc.contributor.author
Clifford, Michael N.
dc.contributor.author
Manifesto, María
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dc.contributor.author
Fortunato, Renee Hersilia
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dc.date.available
2022-08-03T10:45:59Z
dc.date.issued
2021-01
dc.identifier.citation
Nagahama, Nicolas; Gastaldi, Bruno; Clifford, Michael N.; Manifesto, María; Fortunato, Renee Hersilia; The influence of environmental variations on the phenolic compound profiles and antioxidant activity of two medicinal Patagonian valerians (Valeriana carnosa Sm. and V. clarionifolia Phil.); AIMS Press; AIMS Agriculture and Food; 6; 1; 1-2021; 106-124
dc.identifier.issn
2471-2086
dc.identifier.uri
http://hdl.handle.net/11336/163969
dc.description.abstract
Valeriana carnosa and V. clarionifolia stand out as principal elements in the indigenous pharmacopeias of Patagonia; however, their phytochemical characterization is unknown. This study constitutes the starting point of a general project that aims to characterize secondary metabolites in these species. The variability of phenolic compounds in root ethanolic extracts was analyzed and compared for thirteen populations of V. carnosa and two of V. clarionifolia from the south of Argentinean Patagonia. Phenolic content was quantified by the Folin-Ciocalteu method and the putative phenolic compound profiles were investigated using HPLC-UV-MS. Antioxidant activity was evaluated through 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assays. Total phenolic content values ranged from 5.6 to 16.6 mg GAE/g in V. carnosa and 7.3 to 9.7 mg GAE/g in V. clarionifolia. Antioxidant evaluation results evidenced that the percentage of neutralized DPPH varied between 26% and 85% in V. carnosa and 39% and 58% in V. clarionifolia. A positive correlation between total phenolic content and antioxidant activity (r = 0.90) was observed. In V. carnosa total phenolic content was not correlated with altitude or latitude (p > 0.05), and chemical variability seems to be associated with genetic variability and/or different growing habitats (microclimatic conditions). However, the presence of some specific phenolic compounds was associated with latitude. In V. carnosa and V. clarionifolia 15 and 10 phenolic compounds were tentatively identified, respectively, and several of these are reported to have beneficial attributes from a phytomedical viewpoint. This study contributes to the phytochemical characterization project of these two medicinal valerians from Patagonia.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
AIMS Press
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
ANTIOXIDANT ACTIVITY
dc.subject
ETHANOLIC EXTRACTS
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HPLC-UV-MS ANALYSIS
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INTER-POPULATION VARIABILITY
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PHENOLS
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Otros Tópicos Biológicos
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dc.subject.classification
Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
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dc.title
The influence of environmental variations on the phenolic compound profiles and antioxidant activity of two medicinal Patagonian valerians (Valeriana carnosa Sm. and V. clarionifolia Phil.)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-08-01T13:37:20Z
dc.journal.volume
6
dc.journal.number
1
dc.journal.pagination
106-124
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Nagahama, Nicolas. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Sur. Estación Experimental Agropecuaria Esquel; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales y Ciencias de la Salud - Sede Esquel; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
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Fil: Gastaldi, Bruno. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales y Ciencias de la Salud - Sede Esquel; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
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Fil: Clifford, Michael N.. University of Surrey; Reino Unido
dc.description.fil
Fil: Manifesto, María. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación de Recursos Naturales. Instituto de Recursos Biológicos; Argentina
dc.description.fil
Fil: Fortunato, Renee Hersilia. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación de Recursos Naturales. Instituto de Recursos Biológicos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
AIMS Agriculture and Food
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.aimspress.com/article/doi/10.3934/agrfood.2021007
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3934/agrfood.2021007
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