Artigo de periodico

Influence of Choline Chloride on the Phase Equilibria and Partition Performance of Polymer/Polymer Aqueous Biphasic Systems (2023)

• Authors:
  • Alves, Mariana B. N.
  • Lopes, André Moreni
  • Santos, Nathalia A.
  • Santos-Ebinuma, Valéria de Carvalho
  • Vicente, Filipa A
  • Pereira, Jorge Fernando Brandão
• Autor USP: LOPES, ANDRÉ MORENI - EEL
• Unidade: EEL
• DOI: 10.3390/separations10100528
• Assunto: CAFEÍNA
• Keywords: aqueous two-phase systems; choline chloride; polyethylene glycol; sodium polyacrylate; caffeine
• Agências de fomento:
  • Financiamento FCT
  • Financiamento ARRS
  • Financiamento CAPES
  • Financiamento CNPq
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
    Processo FAPESP: 2021/06686-8,2016/23776-2,2014/01580-3,2014/16424-7,2016/06107-2;2017/10789-1,2018/10799-0
• Language: Inglês
• Abstract: A 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.
• Imprenta:
  • Publisher: MDPI
  • Publisher place: Basel
  • Date published: 2023
• Source:
  • Título do periódico: Separations
  • ISSN: 2297-8739
  • Volume/Número/Paginação/Ano: v.10, n.10, p.1-13, art. 528, 2023

Informações sobre o DOI: 10.3390/separations10100528 (Fonte: oaDOI API)
• Este periódico é de acesso aberto
• Este artigo é de acesso aberto
• URL de acesso aberto
• Cor do Acesso Aberto: gold
• Licença: cc-by

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How to cite

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• ABNT

  ALVES, Mariana B. N. et al. Influence of Choline Chloride on the Phase Equilibria and Partition Performance of Polymer/Polymer Aqueous Biphasic Systems. Separations, v. 10, n. 10, p. 1-13, 2023Tradução . . Disponível em: https://doi.org/10.3390/separations10100528. Acesso em: 27 abr. 2024.

• APA

  Alves, M. B. N., Lopes, A. M., Santos, N. A., Santos-Ebinuma, V. de C., Vicente, F. A., & Pereira, J. F. B. (2023). Influence of Choline Chloride on the Phase Equilibria and Partition Performance of Polymer/Polymer Aqueous Biphasic Systems. Separations, 10( 10), 1-13. doi:10.3390/separations10100528

• NLM

  Alves MBN, Lopes AM, Santos NA, Santos-Ebinuma V de C, Vicente FA, Pereira JFB. Influence of Choline Chloride on the Phase Equilibria and Partition Performance of Polymer/Polymer Aqueous Biphasic Systems [Internet]. Separations. 2023 ;10( 10): 1-13.[citado 2024 abr. 27 ] Available from: https://doi.org/10.3390/separations10100528

• Vancouver

  Alves MBN, Lopes AM, Santos NA, Santos-Ebinuma V de C, Vicente FA, Pereira JFB. Influence of Choline Chloride on the Phase Equilibria and Partition Performance of Polymer/Polymer Aqueous Biphasic Systems [Internet]. Separations. 2023 ;10( 10): 1-13.[citado 2024 abr. 27 ] Available from: https://doi.org/10.3390/separations10100528

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