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Related Experiment Videos

Simplified and more robust EBA processes by elution in expanded bed mode.

A Lihme1, E Zafirakos, M Hansen

  • 1UpFront Chromatography A/S, Copenhagen, Denmark.

Bioseparation
|March 29, 2000
PubMed
Summary

Expanded bed adsorption (EBA) column elution is feasible, offering advantages over packed bed methods. This technique shows minimal differences in elution volume, making it a viable alternative for bioprocessing.

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Area of Science:

  • Biotechnology
  • Chromatography
  • Chemical Engineering

Background:

  • Traditional packed bed elution is widely used in chromatography.
  • Expanded bed adsorption (EBA) offers potential advantages for bioseparation processes.

Purpose of the Study:

  • To evaluate the feasibility of eluting EBA columns in expanded bed mode.
  • To compare expanded bed elution with conventional packed bed elution.

Main Methods:

  • Investigated elution of EBA columns in expanded bed mode.
  • Measured elution volumes at linear flow rates of 1-3 cm/min.
  • Compared results with packed bed elution data.

Main Results:

  • Expanded bed elution is a feasible alternative to packed bed elution.

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  • Total elution volume differences were less than 20% at tested flow rates.
  • EBA matrices with low expansion (high density) are key for successful elution.

    • Conclusions:

    • Expanded bed elution offers significant advantages with minimal drawbacks for most applications.
    • The method's success depends on using appropriate EBA matrices.
    • This technique presents a promising alternative in bioseparation.