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Separation processes in biotechnology. Precipitation.

C E Glatz1

  • 1Iowa State University, Ames.

Bioprocess Technology
|January 1, 1990
PubMed
Summary
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Precipitation is a versatile technique for concentrating and fractionating biological products like proteins. Its adaptability to large-scale, continuous processing and ability to maintain biological activity make it valuable in downstream processing.

Area of Science:

  • Biochemistry
  • Chemical Engineering
  • Biotechnology

Background:

  • Precipitation is a key step in downstream processing for product concentration.
  • Ongoing developments are expanding its role in fractionation.
  • It offers advantages such as scalability and retention of biological activity.

Purpose of the Study:

  • To highlight the significance of precipitation in downstream processing.
  • To discuss the advantages and applications of precipitation techniques.
  • To explore the potential of precipitation in protein, nucleic acid, and pharmaceutical product recovery.

Main Methods:

  • Review of precipitation principles and applications.
  • Focus on protein precipitation techniques.
  • Discussion of adaptability to continuous processing and scalability.

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Main Results:

  • Precipitation effectively concentrates biological products.
  • It shows promise for advanced fractionation applications.
  • The method is adaptable to large-scale continuous processing.

Conclusions:

  • Precipitation is a valuable and adaptable technique for downstream processing.
  • Its principles extend beyond protein precipitation to nucleic acids and pharmaceuticals.
  • Further developments will enhance its role in bioproduct recovery.