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  • Electronic Resource  (2)
  • aqueous two-phase extraction  (1)
  • lysozyme  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Biotechnology techniques 13 (1999), S. 145-148 
    ISSN: 1573-6784
    Keywords: protein separation ; aqueous two-phase system ; affinity partitioning ; lysozyme
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Metal ion affinity partitioning of protein in aqueous two-phase systems was studied using Sepharose as ligand carrier as an integrated adsorption partitioning. Cu(II)-bound Sepharose was mixed with protein solution and an aqueous two-phase system. The affinity sorbent was distributed quantitatively to the upper side or the interface. The binding studies of lysozyme to copper-bound gel in PEG/dextran two-phase systems demonstrate the feasibility of this bioseparation process. PEG/dextran system did not affect binding and elution of lysozyme to and from the Cu(II)-Sepharose particles.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 40 (1992), S. 1381-1387 
    ISSN: 0006-3592
    Keywords: aqueous two-phase extraction ; affinity precipitation ; Eudragit ; protein A ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Aqueous two-phase extraction incorporated affinity precipitation was examined as a technique for protein purification. An enteric coating polymer, Eudragit S100, was employed as a ligand carrier. Eudragit was specifically partitioned to the top phase in the aqueous two-phase systems. For application of this method to purification of recombinant protein A using human IgG coupled to Eudragit in an aqueous two-phase system, 80% of protein A added was recovered with 81% purity. The purity was enhanced 26-fold by thid method. The IgG-Eudragit could be used repeatedly for the purification process. This seperation method should be applicable to industrial-scale purification as a new purification procedure combining the advantages and compensating for the disadvantages of the aqueous two-phase method and affinity precipitation method. © 1992 John Wiley & Sons, Inc.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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