Supercritical fluid extraction of Rumex Acetosa L. roots: Yield, composition, kinetics, bioactive evaluation and comparison with conventional techniques

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dc.contributor.authorSantos, Ênio Rafael de Medeiros
dc.contributor.authorOliveira, Humberto Neves Maia de
dc.contributor.authorOliveira, Eduardo de Jesus
dc.contributor.authorAzevedo, Saulo Henrique Gomes de
dc.contributor.authorJesus, Anderson Alles de
dc.contributor.authorMedeiros, Aldo Miro de
dc.contributor.authorDariva, Claudio
dc.contributor.authorSousa, Elisa Maria Bittencourt Dutra de
dc.date.accessioned2021-06-14T19:13:17Z
dc.date.available2021-06-14T19:13:17Z
dc.date.issued2017-04
dc.description.resumoIn this study, Rumex Acetosa extracts were obtained from extraction techniques with supercritical fluid (SFE), Soxhlet and low pressure solvent extraction (LPSE). In the SFE, it was evaluated the effect of the process variables (temperature, solventflow rate,pressure andcosolvent concentration) onthe extraction kinetics, yield and extract solubility. In the Soxhlet extraction, it was evaluated the usage of ethanol, acetonitrile, isopropanol and tert-butyl alcohol, while in LPSE extraction, it was used ethanol as solvent. The phenolics total content (TPC), antioxidant capacity (IC50) and extract composition were determined. The yield obtained ranged from 0.2 to 8.3%. The SFE extraction has demonstrated great efficiency in the extraction of phenolic compounds (anthraquinone and stilbene). The trans-resveratrol concentration in the extracts ranged between 1.03 and 3.52 mg/g, depending on the technique used, the values of IC50 and TPC ranges from 10.67 to 163.43 g/mL and 27.63 to 157.04 mgEAG/g, respectivelypt_BR
dc.identifier.citationSANTOS, Ênio R.M.; OLIVEIRA, Humberto N.M.; OLIVEIRA, Eduardo J.; AZEVEDO, Saulo H.G.; JESUS, Anderson A.; MEDEIROS, Aldo M.; DARIVA, Claudio; SOUSA, Elisa M.B.D.. Supercritical fluid extraction of Rumex Acetosa L. roots: yield, composition, kinetics, bioactive evaluation and comparison with conventional techniques. The Journal of Supercritical Fluids, [S.L.], v. 122, p. 1-9, abr. 2017. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0896844616303734?via%3Dihub. Acesso em: 20 abr. 2021. https://doi.org/10.1016/j.supflu.2016.11.019pt_BR
dc.identifier.doi10.1016/j.supflu.2016.11.019
dc.identifier.issn0896-8446
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/32680
dc.languageenpt_BR
dc.publisherElsevierpt_BR
dc.rightsAttribution 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/br/*
dc.subjectRumex acetosa L.pt_BR
dc.subjectSupercritical fluid extractionpt_BR
dc.subjectAntioxidant activitypt_BR
dc.subjectPhenolic compoundspt_BR
dc.subjectTrans-resveratrolpt_BR
dc.subjectEmodinpt_BR
dc.titleSupercritical fluid extraction of Rumex Acetosa L. roots: Yield, composition, kinetics, bioactive evaluation and comparison with conventional techniquespt_BR
dc.typearticlept_BR

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