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Dye affinity adsorbent replacement optimization

A Tejeda1, J A Noriega, J Ortega

  • 1DICTUS/DIQM: Especialidad en Biotecnología, Universidad de Sonora, Apartado Postal 593, Hermosillo, Sonora 83000, México.

Biotechnology Progress
|June 17, 1998
PubMed
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A new method determines the optimal replacement time for dye affinity adsorbents in protein purification. This method considers regeneration frequency and costs, optimizing chromatography processes.

Area of Science:

  • Biochemical Engineering
  • Separation Science
  • Chromatography

Background:

  • Dye affinity adsorbents are crucial for protein purification.
  • Severe regeneration conditions can degrade adsorbent performance over time.
  • Determining optimal adsorbent replacement is vital for process efficiency and cost-effectiveness.

Purpose of the Study:

  • To develop a method for determining the optimal replacement time of dye affinity adsorbents.
  • To provide a framework for optimizing the design and operation of dye-ligand chromatographic processes.

Main Methods:

  • Developed a novel method to calculate optimal adsorbent replacement time.
  • Employed an experimental fixed-bed decay model to simulate adsorbent performance over cycles.
  • Analyzed the relationship between replacement cycles, regeneration frequency, and costs.

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Main Results:

  • The optimal replacement number is a function of regeneration frequency and associated costs.
  • The developed method provides a quantitative approach to adsorbent lifecycle management.
  • Demonstrated the practical utility of the method in a simulated chromatographic process.

Conclusions:

  • The method enables informed decisions regarding dye affinity adsorbent replacement.
  • Optimizing adsorbent replacement enhances the economic viability and efficiency of protein purification.
  • Results offer valuable insights for the design and operation of industrial-scale dye-ligand chromatography.