Aqueous Biphasic Systems Formed in (Zwitterionic Salt + Inorganic Salt) Mixtures

Jordan Mills; Gaelle Level; Chirangano Mangwandi; Marijana Blesic

doi:10.1515/pac-2018-1222

Aqueous Biphasic Systems Formed in (Zwitterionic Salt + Inorganic Salt) Mixtures

Jordan Mills, Gaelle Level, Chirangano Mangwandi, Marijana Blesic^*

^*Corresponding author for this work

Research output: Contribution to journal › Article

1 Citation (Scopus)

28 Downloads (Pure)

Abstract

Abstract: The manuscript reports on a new class of aqueous biphasic systems (ABSs) formed in mixtures of inorganic salts (ISs) and zwitterionic salts (ZWSs). Aqueous ternary phase diagrams characterized by a binodal curve were determined for systems consisting of four ISs, K3PO4, K2HPO4, K2HPO4/KH2PO4, and K2CO3, and three structurally similar ZWSs differing in hydrophobicity. Comparison of phase behaviour of ABSs composed of ZWSs, ionic liquids (ILs) and zwitterions was provided. Potential of ZWSs based systems for extraction of aro-matic molecules and amino acids, such as glycine, L-tryptophan, DL-phenylalanine, eugenol, and phenol was examined. Feasibility and limitations of isolation of products after partition and recovery of ZWS were dis-cussed.

Original language	English
Journal	Pure and Applied Chemistry
Early online date	21 May 2019
DOIs	https://doi.org/10.1515/pac-2018-1222 https://doi.org/10.1515/pac-2018-1222
Publication status	Published - 2019

Keywords

amino acid
aqueous biphasic system
ISSP-18
partition coefficient
zwitterionic salt

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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10.1515/pac-2018-1222

Aqueous Biphasic Systems Formed in (Zwitterionic Salt + Inorganic Salt) Mixtures
© 2019 by Walter de Gruyter GmbH This work is made available online in accordance with the publisher’s policies. Please refer to any applicable terms of use of the publisher.
Accepted author manuscript, 1.08 MBLicence: Unspecified

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AU - Mills, Jordan

AU - Level, Gaelle

AU - Mangwandi, Chirangano

AU - Blesic, Marijana

PY - 2019

Y1 - 2019

N2 - Abstract: The manuscript reports on a new class of aqueous biphasic systems (ABSs) formed in mixtures of inorganic salts (ISs) and zwitterionic salts (ZWSs). Aqueous ternary phase diagrams characterized by a binodal curve were determined for systems consisting of four ISs, K3PO4, K2HPO4, K2HPO4/KH2PO4, and K2CO3, and three structurally similar ZWSs differing in hydrophobicity. Comparison of phase behaviour of ABSs composed of ZWSs, ionic liquids (ILs) and zwitterions was provided. Potential of ZWSs based systems for extraction of aro-matic molecules and amino acids, such as glycine, L-tryptophan, DL-phenylalanine, eugenol, and phenol was examined. Feasibility and limitations of isolation of products after partition and recovery of ZWS were dis-cussed.

AB - Abstract: The manuscript reports on a new class of aqueous biphasic systems (ABSs) formed in mixtures of inorganic salts (ISs) and zwitterionic salts (ZWSs). Aqueous ternary phase diagrams characterized by a binodal curve were determined for systems consisting of four ISs, K3PO4, K2HPO4, K2HPO4/KH2PO4, and K2CO3, and three structurally similar ZWSs differing in hydrophobicity. Comparison of phase behaviour of ABSs composed of ZWSs, ionic liquids (ILs) and zwitterions was provided. Potential of ZWSs based systems for extraction of aro-matic molecules and amino acids, such as glycine, L-tryptophan, DL-phenylalanine, eugenol, and phenol was examined. Feasibility and limitations of isolation of products after partition and recovery of ZWS were dis-cussed.

KW - amino acid

KW - aqueous biphasic system

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KW - partition coefficient

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