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Influence of bioreactor scale and complex medium on probing control of glucose feeding in cultivations of recombinant strains of Escherichia coli

Author

  • Stephane Velut
  • Andreas Castan
  • Kevin A. Short
  • Jan Peter Axelsson
  • Per Hagander
  • Barry A. Zditosky
  • Christopher W. Rysenga
  • Lena de Maré
  • Jan Haglund

Summary, in English

The objective of this work was to evaluate the performance of a feedback glucose control strategy (the probing strategy) in production relevant bioreactors with complex and mineral media. Experimental results from fedbatch cultivations with two recombinant Escherichia coli constructs expressing two different human therapeutic proteins were used to assess the performance and limitations of the glucose probing technique. Even though the performance of the probing strategy was affected by scale and complex media, this methodology rapidly identified a glucose feed protocol similar to an experimentally derived feed regime. This methodology may serve as a powerful tool for industrial process development and in optimization of glucose feed regimes when transferring process technology from one bioreactor system to another.

Publishing year

2007

Language

English

Pages

816-824

Publication/Series

Biotechnology and Bioengineering

Volume

97

Issue

4

Document type

Journal article

Publisher

John Wiley & Sons Inc.

Topic

  • Control Engineering

Keywords

  • probing control
  • feeding strategy
  • fed-batch
  • fermentations
  • industrial
  • bioreactor
  • complex medium

Status

Published

ISBN/ISSN/Other

  • ISSN: 1097-0290