Related Experiment Video
Updated: Jan 16, 2026

The Use of Chemostats in Microbial Systems Biology
Published on: October 14, 2013
Protocol to detect dilution cycles in chemostat experiments and estimate growth rate slopes with linear modeling with
Samuel I Koehler1, Jennifer T Pentz1, Earl A Middlebrook1
1Los Alamos National Laboratory, Bioscience Division, Los Alamos, NM 87509, USA.
This study introduces chemostat_regression, R software for automated analysis of chemostat growth data. It simplifies growth rate estimation, improving efficiency for researchers studying microbial or cell growth dynamics.
Area of Science:
- Microbiology
- Biotechnology
- Computational Biology
Background:
- Chemostat growth chambers are essential for continuous culture studies.
- Traditional methods for calculating growth rates from optical density data are manual and time-consuming.
- Accurate growth rate determination is critical for understanding microbial physiology and optimizing bioprocesses.
Purpose of the Study:
- To develop an automated software solution for analyzing chemostat data.
- To provide a user-friendly tool for estimating microbial growth rates.
- To streamline the process of chemostat data analysis and interpretation.
Main Methods:
- Development of 'chemostat_regression', an R software package.
- Implementation of a linear regression approach for growth rate estimation.
- Description of software environment setup, data formatting, and execution procedures.
Main Results:
- Automated identification of chemostat cycles.
- Accurate estimation of growth rates using regression analysis.
- Guidance on interpreting results and assessing their validity.
Conclusions:
- The chemostat_regression software automates and simplifies growth rate calculation from chemostat experiments.
- This tool enhances the efficiency and reproducibility of microbial growth studies.
- The software offers flexibility through adjustable parameters for diverse experimental conditions.
More Related Videos
Related Concept Videos
Microbial Growth Measurement: Indirect Methods
Microbial Growth Measurement: Direct Methods
Derivatives: Problem Solving
Calibration Curves: Linear Least Squares
For data that follow a straight line, the standard method for fitting is the linear...
Measuring Reaction Rates
Determination of Multiple Dosing Parameters: Steady-State, Minimum and Maximum Concentrations

