Supercritical Co2 Extraction As A Selective Method For The Obtainment Of Coumarins From Pterocaulon Balansae (asteraceae)

dc.creatorTorres
dc.creatorFernando Cidade; Medeiros-Neves
dc.creatorBruna; Teixeira
dc.creatorHelder Ferreira; Kawanoa
dc.creatorDaniel; Eifler-Lima
dc.creatorVera Lucia; Cassel
dc.creatorEduardo; Figueiro Vargas
dc.creatorRubem Mario; von Poser
dc.creatorGilsane Lino
dc.date2017
dc.datemar
dc.date2017-11-13T13:45:17Z
dc.date2017-11-13T13:45:17Z
dc.date.accessioned2018-03-29T05:59:57Z
dc.date.available2018-03-29T05:59:57Z
dc.identifierJournal Of Co2 Utilization. Elsevier Science Ltd, v. 18, p. 303 - 308, 2017.
dc.identifier2212-9820
dc.identifier2212-9839
dc.identifierWOS:000397469800032
dc.identifier10.1016/j.jcou.2017.02.008
dc.identifierhttp://www.sciencedirect.com/science/article/pii/S221298201630107X
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/328973
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1365998
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionAiming to recover fractions enriched with coumarins, the aerial parts of Pterocaulon balansae Chodat (Asteraceae) were subjected to supercritical fluid extraction (SFE) using CO2 as solvent under constant temperature (40 degrees C) and gradual pressure increments (90, 120, 150 and 200 bar). The yields of the coumarins in the extracts were calculated using high-performance liquid chromatography analyses, which allowed the identification of seven coumarins previously reported by our research group. Coumarin 7-((3,3-dimethyloxiran-2-yl) methoxy)-5,6-dimethoxy-2H-chromen-2-one was identified as the major component of all extracts but we also identified considerable amounts of other epoxysubstituted coumarins. The mild conditions provided by the supercritical CO2 extraction (SC-CO2 extraction) may considerably reduce the ring-opening of the epoxy groups in the coumarins from the aerial parts of P. balansae, when compared to the conventional extraction procedures. (C) 2017 Elsevier Ltd. All rights reserved.
dc.description18
dc.description303
dc.description308
dc.descriptionCAPES
dc.descriptionCNPq
dc.descriptionCAPES/CNPq-Brasil [190470/2012]
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.languageEnglish
dc.publisherElsevier Science Ltd
dc.publisherOxford
dc.relationJournal of CO2 Utilization
dc.rightsfechado
dc.sourceWOS
dc.subjectPterocaulon Balansae
dc.subjectCoumarins
dc.subjectSupercritical Fluid Extraction
dc.subjectCarbon Dioxide
dc.subjectEpoxy-coumarins
dc.titleSupercritical Co2 Extraction As A Selective Method For The Obtainment Of Coumarins From Pterocaulon Balansae (asteraceae)
dc.typeArtículos de revistas


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