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Mechanistic modeling of product formation in recombinant Escherichia coli cultivations

  • Don Fabian Müller
  • , Philipp Pably
  • , Daniel Wibbing
  • , Julian Kager
  • , Christoph Herwig*
  • *Corresponding author for this work
  • TU Wien
  • Festo AG & Co. KG

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

In this work a nonlinear mechanistic model was developed predicting the product formation of recombinant lactate dehydrogenase (LDH) using fed-batch cultivations of Escherichia coli. The derived product formation kinetics consider the inclusion body (IB) fraction as well as the soluble protein fraction. After the structural identifiability of the model parameters was analyzed, five fed-batch cultivations were conducted in total in order to identify the model parameters and to validate the model subsequently. The accuracy of the final model was overall good with NRMSE values of around 0.1 to 0.2 for both product fractions. The derived model can be seen as an enabler for advanced monitoring and control strategies like model predictive control and other advances technologies defined in the process analytical technology (PAT) initiative.
Original languageEnglish
Title of host publicationProceedings of the 33rd European Symposium on Computer Aided Process Engineering
EditorsAntonis Kokossis, Michael C. Georgiadis, Efstratios N. Pistikopoulos
PublisherElsevier
Publication date2023
Pages487-492
ISBN (Print)978-0-443-23553-5, 978-0-443-15274-0
DOIs
Publication statusPublished - 2023
Event33rd European Symposium on Computer Aided Process Engineering - Athens, Greece
Duration: 18 Jun 202321 Jun 2023

Conference

Conference33rd European Symposium on Computer Aided Process Engineering
Country/TerritoryGreece
CityAthens
Period18/06/202321/06/2023
SeriesComputer Aided Chemical Engineering
Volume52
ISSN1570-7946

Keywords

  • Escherichia coli
  • Bioprocess control
  • Product formation
  • Mechanistic model
  • Process analytical technology

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