RT info:eu-repo/semantics/article
T1 Novel ethyl lactate based ATPS for the purification of rutin and quercetin
A1 Velho, Pedro
A1 Requejo, Patricia F.
A1 Gómez, Elena
A1 Macedo, Eugénia A.
K1 Ethyl lactate
K1 Flavonoids
K1 Aqueous two-phase systems
K1 Partitioning
K1 Thermodynamic modelling
AB 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.
PB Elsevier
SN 1383-5866
YR 2020
FD 2020
LK https://uvadoc.uva.es/handle/10324/65623
UL https://uvadoc.uva.es/handle/10324/65623
LA eng
NO Separation and Purification Technology, 2020, vol. 252 p. 117447
NO Producción Científica
DS UVaDOC
RD 18-nov-2024