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Related Experiment Videos

Direct coupling of expanded bed adsorption with a downstream purification step.

J T Beck1, B Williamson, B Tipton

  • 1AMGEN, Thousand Oaks, CA 91320-1789, USA.

Bioseparation
|March 29, 2000
PubMed
Summary

This study simplifies recombinant protein purification from Chinese hamster ovary cell culture using unidirectional expanded bed adsorption (EBA). This cost-effective method integrates clarification, purification, and concentration, reducing processing time and equipment needs.

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Area of Science:

  • Biotechnology
  • Bioprocessing
  • Protein Purification

Background:

  • Chinese hamster ovary (CHO) cell culture is a key system for recombinant protein production.
  • Efficient and cost-effective purification methods are crucial for biopharmaceutical manufacturing.
  • Expanded Bed Adsorption (EBA) offers potential for integrated clarification and purification.

Purpose of the Study:

  • To develop a cost-effective and scalable process for recombinant protein purification from CHO cell culture.
  • To investigate the direct capture of recombinant proteins using unidirectional expanded bed adsorption (EBA).
  • To simplify EBA operations and reduce overall processing time.

Main Methods:

  • Direct application of unclarified bioreactor material to a STREAMLINE 25 column with affinity adsorbent.

Related Experiment Videos

  • Unidirectional EBA operation in expanded bed mode.
  • Coupling of EBA directly with downstream chromatography (ion exchange or hydrophobic interaction).

    • Main Results:

    • Unidirectional EBA proved to be a simpler unit operation, not requiring specialized equipment.
    • The increase in elution pool volume was insignificant, particularly when coupled directly to downstream processing.
    • Scale-down of the unidirectional EBA process was straightforward and amenable to automation.

    Conclusions:

    • Coupling unidirectional EBA with downstream purification significantly reduces processing time, equipment needs, and overall costs.
    • This simplified EBA approach enhances the efficiency and scalability of recombinant protein purification from CHO cell cultures.
    • The developed method offers a more economical and streamlined bioprocessing solution.