Novel ethyl lactate based ATPS for the purification of rutin and quercetin

• Tipo: Artigo em Revista Científica Internacional
• Data: 2020

Autores

Maria Eugénia Macedo (Autor) FEUP; Pedro Velho (Autor) FEUP; Patricia R. Fernandez (Autor) Outra; Elena Gómez (Autor) FEUP

Revista

Título: Separation and Purification Technology

Vol. 252

ISSN: 1383-5866

Editora: Elsevier

Indexação

ISI Web of Knowledge - 5 Citações

ISI Web of Science

Scopus - 6 Citações

Classificação Científica

CORDIS: Ciências Tecnológicas

FOS: Ciências da engenharia e tecnologias

Projetos Associados

LA LSRE-LCM - Financiamento Plurianual 2020-2023 para a Unidade LA LSRE-LCM Laboratório de Processos de Separação e Reacção - Laboratório de Catálise e Materiais

AIProcMat@N2020 - Advanced Industrial Processes and Materials for a Sustainable North Region of Portugal2020

Outras Informações

ID Authenticus: P-00S-HZS

DOI: 10.1016/j.seppur.2020.117447

Abstract (EN): 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8