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S-system approach to modeling recombinant Escherichia coli growth by hybrid differential evolution with data collocation
- Source :
-
Biochemical Engineering Journal . Feb2006, Vol. 28 Issue 1, p10-16. 7p. - Publication Year :
- 2006
-
Abstract
- Abstract: In this study, we have established a suitable model to describe the dynamic characteristic of an aspartase-overproducing Escherichia coli strain. A traditional Monod model and power-law models are respectively applied to describe the dynamic behaviors. When the model structure was selected, the parameter values of the model should be determined by the global/local optimization method. There are two major challenges, numerical integration for differential equations and finding global parameter values. In this study, we introduce hybrid differential evolution, which is a variant of genetic algorithms, to avoid obtaining a premature solution. In addition, we apply a modified collocation method to avoid numerical integration. The Monod''s model could only predict the growth characteristic of the recombinant E. coli, qualitatively. The S-system representation could suit for constructing the model structure of the microbial growth. [Copyright &y& Elsevier]
- Subjects :
- *ESCHERICHIA coli
*ENTEROBACTERIACEAE
*ESTIMATION theory
*PARAMETER estimation
Subjects
Details
- Language :
- English
- ISSN :
- 1369703X
- Volume :
- 28
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Biochemical Engineering Journal
- Publication Type :
- Academic Journal
- Accession number :
- 19186609
- Full Text :
- https://doi.org/10.1016/j.bej.2005.08.032