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Updated: Jul 3, 2026

Cellular Membrane Affinity Chromatography Columns to Identify Specialized Plant Metabolites Interacting with Immobilized Tropomyosin Kinase Receptor B
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Selective extraction using preferential transport through adsorptive membranes.

A Agrawal1, M A Burns

  • 1Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136, USA.

Biotechnology and Bioengineering
|December 5, 1996
PubMed
Summary
This summary is machine-generated.

Selective protein extraction is possible using adsorptive membranes and parametric pumping. This method preferentially transports target proteins like lysozyme while rejecting others, such as myoglobin, from mixtures.

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Area of Science:

  • Biochemical Engineering
  • Separation Science
  • Membrane Technology

Background:

  • Selective extraction of proteins from complex mixtures is crucial in biotechnology and pharmaceuticals.
  • Traditional methods often face challenges with efficiency and scalability.
  • Parametric pumping offers a potential alternative for enhanced separation processes.

Purpose of the Study:

  • To investigate the use of low displacement recuperative parametric pumping with adsorptive membranes for selective protein extraction.
  • To determine the conditions favoring preferential transport of lysozyme over myoglobin.
  • To compare the efficiency of this method with facilitated diffusion.

Main Methods:

  • Utilized an ion-exchange membrane cartridge for protein separation.
  • Employed low displacement recuperative parametric pumping with varying desorbent concentration, feed concentration, and flow rate.
  • Developed and validated a mathematical model to predict separation trends.
  • Compared protein fluxes and selectivity with facilitated diffusion.

Main Results:

  • Achieved preferential transport of lysozyme and rejection of myoglobin through the ion-exchange membrane.
  • Observed that varying operational parameters aligned with mathematical model predictions.
  • Demonstrated that preferential transport can yield higher solute fluxes than facilitated diffusion, though with reduced selectivity.
  • Showcased the ability to transport solutes against a concentration gradient and extract from feeds with suspended solids.

Conclusions:

  • Low displacement recuperative parametric pumping is an effective technique for selective protein extraction using adsorptive membranes.
  • The method shows promise for concentrating solutes and separating them from complex matrices, including those with solids.
  • This approach offers advantages in specific applications requiring enhanced solute flux and potential for uphill transport.