• Corpus ID: 16093220

Numerical simulation of growth of Escherichia coli in unsaturated porous media

@article{Hron2014NumericalSO,
  title={Numerical simulation of growth of Escherichia coli in unsaturated porous media},
  author={Pavel Hron and Daniel Jost and Peter Bastian and Claudia Gallert and Josef Winter and Olaf Ippisch},
  journal={arXiv: Cell Behavior},
  year={2014}
}
A model for the aerobic and anaerobic growth of Escherichia coli (HB101 K12 pGLO) depending on the concentration of oxygen and DOC as substrate has been developed based on laboratory batch experiments. Using inverse modelling to obtain optimal sets of parameters, it could be shown that a model based on a modified double Contois kinetic can predict cell densities, organic carbon utilisation, oxygen transfer and utilisation rates for a large number of experiments under aerobic and anaerobic… 

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References

SHOWING 1-10 OF 74 REFERENCES
Simulation of the growth pattern of a single cell of Escherichia coli under anaerobic conditions
TLDR
The model's ability to predict reasonable growth responses under anaerobic conditions by only modifying energy metabolism is a further indication of the robust nature of the description of cell physiology included in the development of the aerobic model.
Temperature-dependent growth kinetics of Escherichia coli ML 30 in glucose-limited continuous culture
TLDR
A model that describes steady-state glucose concentrations as a function of temperature at constant growth rates is presented and the results of laboratory-scale kinetic experiments are discussed with respect to the concentrations observed in natural environments.
Growth Kinetics of Suspended Microbial Cells: From Single-Substrate-Controlled Growth to Mixed-Substrate Kinetics
TLDR
The data suggest that a dilemma exists, namely, that either “intrinsic” KS or μmax can be measured but both cannot be determined at the same time, which should result in a competitive advantage of a cell capable of mixed-substrate growth because it can grow much faster at low substrate concentrations than one would expect from single- substrate kinetics.
Kinetics of escherichia coli hydrogen production during short term repeated aerobic-anaerobic fluctuations
TLDR
It is shown, that oscillating oxygen concentrations, give effects on E.coli metabolism, and the relevance of this model system for studies on the bioreactor performance, are discussed.
Measurement and Prediction of the Oxygen Diffusion Coefficient in Unsaturated Media, with Applications to Soil Covers
Molecular diffusion is an important mechanism for gas transport in various natural and man-made systems. This is particularly the case with soil covers installed on acid-generating mine tailings,
Kinetics of bacterial growth: relationship between population density and specific growth rate of continuous cultures.
SUMMARY: Results from studies of continuous cultures of Aerobacter aerogenes growing in chemically denned media indicate that specific growth rate (R) is a function of population density (P) as well
The Porous Surface Model, a Novel Experimental System for Online Quantitative Observation of Microbial Processes under Unsaturated Conditions
TLDR
The porous surface model constitutes a tool uniquely adapted to study the influence of liquid film geometry on microbial processes, and should contribute to uncovering mechanisms of microbial adaptation to unsaturated environments.
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