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Título
Novel ethyl lactate based ATPS for the purification of rutin and quercetin
Año del Documento
2020
Editorial
Elsevier
Descripción
Producción Científica
Documento Fuente
Separation and Purification Technology, 2020, vol. 252 p. 117447
Zusammenfassung
The application of new aqueous two-phase systems (ATPS) composed by a hydrophilic green solvent, ethyl lactate, and two low environmental impact salts: sodium and potassium citrate have been studied for the recovery of two flavonoids from aqueous solutions. First, to understand the phase formation process of the ATPS, binodal curves and tie-lines and their respective slopes and tie-line lengths were determined at T=298.15 K and atmospheric pressure. The degree of consistency of the tie-lines was evaluated using Othmer-Tobias and Bancroft equations. Moreover, the influence of the change of the salt cation on the phase behaviour has been assessed.
Furthermore, the UNIversal QUAsiChemical (UNIQUAC) thermodynamic model was applied to describe the phase equilibria presented in this work. Furthermore, the partitioning of two flavonoids, rutin and quercetin, in these ATPS {ethyl lactate (1) + citrate salts (2) + water (3)} was measured at T = 298.15 K and atmospheric pressure. Finally, the obtained results were compared with those found in literature.
Palabras Clave
Ethyl lactate
Flavonoids
Aqueous two-phase systems
Partitioning
Thermodynamic modelling
ISSN
1383-5866
Revisión por pares
SI
Patrocinador
This work is a result of project “AIProcMat@N2020 - Advanced Industrial Processes and Materials for a Sustainable Northern Region of Portugal 2020: NORTE-01-0145-FEDER-000006, NORTE-2020-ERDF-LSRE-LCM-UID/EQU/50020/2019 FCT/MCTES (PIDDAC), FCT Grant CEECIND/02646/2017 and Xunta de Galicia Grant ED481B-2017/019.
Version del Editor
Propietario de los Derechos
Elsevier
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
restrictedAccess
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