Recent Advances in Protein Extraction Using Ionic Liquid-based Aqueous Two-phase Systems

Sze Ying Lee, Ianatul Khoiroh, Chien Wei Ooi, Tau Chuan Ling, Pau Loke Show

Research output: Contribution to journalReview articlepeer-review

79 Scopus citations

Abstract

Since its inception in 2003, ionic liquid (IL)-based aqueous two-phase system (ATPS) has been perceived to give a boost to the application of ATPS in protein separation. Given the green and tunable nature of ILs, the functionality of IL-ATPS can be well designed to suit the specificities required by the bioseparation field. Aside from the conventional imidazolium-based ILs, the types of IL investigated have also expanded to other families of cations (e.g., cholinium, ammonium, phosphonium and guanidinium) and benign anions (e.g., carboxylic acids, amino acids and biological buffers). This review aims to provide a comprehensive assessment of the recent literature targeting the applications of IL-ATPSs in the separation and purification of proteins. Different IL families were addressed in terms of their protein-compatibility, and the applicability of the IL-ATPS formed for the separation of a specific protein of interest. Additionally, the present review highlights the possible directions for future developments.

Original languageBritish English
Pages (from-to)291-304
Number of pages14
JournalSeparation and Purification Reviews
Volume46
Issue number4
DOIs
StatePublished - 2 Oct 2017

Keywords

  • Aqueous two-phase system
  • enzyme
  • extraction
  • ionic liquids
  • protein

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