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@ARTICLE{Ziegler:1025678,
author = {Ziegler, Anita L. and Manchanda, Ashutosh and Stumm,
Marc-Daniel and Blank, Lars M. and Mitsos, Alexander},
title = {{S}imultaneous design of fermentation and microbe},
publisher = {arXiv},
reportid = {FZJ-2024-03067},
year = {2024},
abstract = {Constraint-based optimization of microbial strains and
model-based bioprocess design have been used extensively to
enhance yields in biotechnological processes. However,
strain and process optimization are usually carried out in
sequential steps, causing underperformance of the
biotechnological process when scaling up to industrial
fermentation conditions. Herein, we propose the optimization
formulation SimulKnock that combines the optimization of a
fermentation process with metabolic network design in a
bilevel optimization program. The upper level maximizes
space-time yield and includes mass balances of a continuous
fermentation, while the lower level is based on flux balance
analysis. SimulKnock predicts optimal gene deletions and
finds the optimal trade-off between growth rate and product
yield. Results of a case study with a genome-scale metabolic
model of E. coli indicate higher space-time yields than a
sequential approach using OptKnock for almost all target
products considered. By leveraging SimulKnock, we reduce the
gap between strain and process optimization.},
keywords = {Optimization and Control (math.OC) (Other) / FOS:
Mathematics (Other)},
cin = {IEK-10},
cid = {I:(DE-Juel1)IEK-10-20170217},
pnm = {899 - ohne Topic (POF4-899)},
pid = {G:(DE-HGF)POF4-899},
typ = {PUB:(DE-HGF)25},
doi = {10.48550/ARXIV.2401.16188},
url = {https://juser.fz-juelich.de/record/1025678},
}