Abstract
Textile dyes have been used in polymer-bound state for selective extraction of enzymes within aqueous two-phase systems composed of two polymers. The effectivity of this extraction depends on several factors including type, molecular weight and concentration of bulk polymers as well as the ligand-carrying polymer. Also the degree of substitution (mole ligand/mole polymer) is a parameter which now has been studied. A high degree of substitution does not only give rise to affinity partition but also allows steering of the partition of the ligand-polymer itself. Therefore, the same ligand-polymer can be used for extraction of enzymes both to the upper and to lower phase. Studies have been carried out with Procion yellow HE-3G bound to poly(ethylene glycol), dextran, hydroxypropyl starch, Ficoll, ethylhydroxyethyl cellulose and polyvinyl alcohol. Dyepoly (ethylene glycol) has also been used for selective solubilisation of enzymes at such concentration of poly(ethylene glycol) which causes precipitation of proteins.
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Johansson, G. (1989). Affinity Partition and Solubilisation of Enzymes by Use of Polymer-Bound Triazine Dyes. In: Vijayalakshmi, M.A., Bertrand, O. (eds) Protein-Dye Interactions: Developments and Applications. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1107-9_18
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DOI: https://doi.org/10.1007/978-94-009-1107-9_18
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-6989-2
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