Protocol to detect dilution cycles in chemostat experiments and estimate growth rate slopes with linear modeling with R software chemostat_regression
Chemostat growth chambers measure optical density over time and require manual calculation of growth rates. Here, we present chemostat_regression, R software that enables users to automatically identify chemostat cycles and estimate growth rate using a linear regression approach. We describe steps for creating requisite software environment(s), formatting input data, executing the software via command line/RStudio/R-Shiny, interpreting results, assessing the validity of results, and modifying input parameters.
Authors
- Jennifer T. Pentz (ORCID: https://orcid.org/0000-0002-8186-3005)
- Earl A. Middlebrook (ORCID: https://orcid.org/0000-0003-0508-455X)
- Erik R. Hanschen (ORCID: https://orcid.org/0000-0002-6595-4564)
- Blake T. Hovde (ORCID: https://orcid.org/0000-0002-7112-3310)
- Samuel I. Koehler (ORCID: https://orcid.org/0000-0002-8500-1824)
Institutions
- Los Alamos National Laboratory (US)
- Los Alamos National Security (United States) (US)
Publication Details
- Journal
- STAR Protocols
- Published
- 2025-09-27
- DOI
- https://doi.org/10.1016/j.xpro.2025.104113
- Citations
- 1
- Primary Topic
- Data Analysis with R
- Type
- article
- Field-Weighted Citation Impact
- 2.48