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Interfacial protein adsorption and inactivation.

A Sadana1

  • 1Chemical Engineering Department, University of Mississippi, University 38677-9740.

Bioseparation
|January 1, 1992
PubMed
Summary
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Biomedical implications of protein folding and misfolding.

Biotechnology and applied biochemistry·2001

Protein inactivation at interfaces, including liquid-liquid, gas-liquid, and liquid-solid, is examined. Understanding protein adsorption quality is key to minimizing inactivation and improving bioseparation processes.

Area of Science:

  • Biochemistry
  • Chemical Engineering
  • Physical Chemistry

Background:

  • Protein inactivation at interfaces is a critical issue in bioprocessing.
  • Understanding the mechanisms and extent of inactivation is essential for optimizing bioseparation techniques.

Purpose of the Study:

  • To present protein inactivation mechanisms at various interfaces (liquid-liquid, gas-liquid, liquid-solid).
  • To analyze the influence of protein adsorption on bioseparation systems.
  • To highlight the importance of protein adsorption 'quality' for minimizing inactivation.

Main Methods:

  • Review and analysis of existing literature on protein inactivation at interfaces.
  • Examination of protein adsorption phenomena at different interface types.
  • Case studies of protein adsorption impact on two-phase, fermentation, membrane, and chromatographic separations.

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Main Results:

  • Protein inactivation mechanisms, extent, and minimization strategies are detailed for different interfaces.
  • Novel physical insights into protein interactions at interfaces are provided by analyzing adsorption behavior.
  • The 'quality' or heterogeneity of adsorbed protein significantly impacts inactivation and bioseparation outcomes.

Conclusions:

  • Protein adsorption at interfaces critically affects bioseparation efficiency.
  • Minimizing protein inactivation requires careful consideration of adsorption quality.
  • Future research should focus on the 'quality' of adsorbed protein in bioseparation systems for enhanced performance.