Influence of Choline Chloride on the Phase Equilibria and Partition Performance of Polymer/Polymer Aqueous Biphasic Systems

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Autor(es): dc.contributorUniversity of Coimbra-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorNational Institute of Chemistry-
Autor(es): dc.creatorAlves, Mariana B. N.-
Autor(es): dc.creatorLopes, André M.-
Autor(es): dc.creatorSantos, Nathalia A.-
Autor(es): dc.creatorSantos-Ebinuma, Valéria C.-
Autor(es): dc.creatorVicente, Filipa A.-
Autor(es): dc.creatorPereira, Jorge F. B.-
Data de aceite: dc.date.accessioned2025-08-21T17:50:36Z-
Data de disponibilização: dc.date.available2025-08-21T17:50:36Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2023-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/separations10100528-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/301485-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/301485-
Descrição: dc.descriptionA series of polymeric aqueous biphasic systems (ABS) were determined using polyethylene glycol (PEG) and sodium polyacrylate (NaPA) with choline chloride ([Ch]Cl) as an adjuvant. The effect of (i) PEG and NaPA molecular weights, (ii) PEG functionalization, (iii) [Ch]Cl addition (at different concentrations), and (iv) temperature (25, 37 and 50 °C) was evaluated through their ability to promote the two-phase separation. The results showed that the polymerization degree and functionalization of PEG polymers exhibit a large influence on the ABS formation, with high molecular weight PEG inducing an increase in the biphasic region. Furthermore, the addition of small amount (1–5 wt%) of [Ch]Cl also increased the liquid–liquid demixing. Temperature and the increase in the NaPA molecular weight did not influence the ABS formation ability. Finally, the partition performance of PEG/NaPA + [Ch]Cl ABS was evaluated using caffeine as a model compound. Unlike the ABS formation trend, NaPAs molecular weight significantly influenced the partitioning, which was strengthened when using NaPA-8000. Moreover, the incorporation of [Ch]Cl facilitated an inversion in the partitioning behavior of caffeine, thereby emphasizing the remarkable partitioning tailoring potential exhibited by these systems. Overall, all systems seem to be promising alternatives for the effective extraction, purification and/or concentration of different value-added biomolecules.-
Descrição: dc.descriptionJavna Agencija za Raziskovalno Dejavnost RS-
Descrição: dc.descriptionChemical Process Engineering and Forest Products Research Centre (CIEPQPF) Department of Chemical Engineering University of Coimbra, Rua Sílvio Lima, Pólo II—Pinhal de Marrocos-
Descrição: dc.descriptionDepartment of Biotechnology Lorena School of Engineering University of São Paulo (EEL/USP), SP-
Descrição: dc.descriptionDepartment of Bioprocess Engineering and Biotechnology School of Pharmaceutical Sciences São Paulo State University (UNESP), SP-
Descrição: dc.descriptionDepartment of Catalysis and Chemical Reaction Engineering National Institute of Chemistry-
Descrição: dc.descriptionDepartment of Bioprocess Engineering and Biotechnology School of Pharmaceutical Sciences São Paulo State University (UNESP), SP-
Descrição: dc.descriptionJavna Agencija za Raziskovalno Dejavnost RS: P2-0152-
Idioma: dc.languageen-
Relação: dc.relationSeparations-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectaqueous two-phase systems-
Palavras-chave: dc.subjectcaffeine-
Palavras-chave: dc.subjectcholine chloride-
Palavras-chave: dc.subjectpolyethylene glycol-
Palavras-chave: dc.subjectsodium polyacrylate-
Título: dc.titleInfluence of Choline Chloride on the Phase Equilibria and Partition Performance of Polymer/Polymer Aqueous Biphasic Systems-
Tipo de arquivo: dc.typelivro digital-
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