Related Experiment Video
Updated: Jul 20, 2026

Continuous Measurement of Biological Noise in Escherichia Coli Using Time-lapse Microscopy
Published on: April 27, 2021
Growth of Escherichia coli under extremely low-frequency electromagnetic fields
Oselys Rodriguez Justo1, Victor Haber Pérez, David Chacon Alvarez
1Department of Food Engineering, School of Food Engineering, State University of Campinas, Campinas-SP, Brazil.
Abstract:
The influence of extremely low-frequency (ELF) electromagnetic fields on Escherichia coli cultures in submerse fermentation was studied. The fermentation processes were carried out recycling the culture medium externally through a stainless steel tube inserted in a magnetic field generator (solenoid). The exposure time and electromagnetic induction were varied in a range of 1 to 12 h and 0.010 to 0.10 T, respectively, according to a Box-Wilson Central Composite Designs of face centered with five central points. Growth of E. coli could be altered (stimulated or inhibited) under magnetic fieldinduced effects. E. coli cultures exposed at 0.1 T during 6.5 h exhibited changes in its viability compared to unexposed cells, which was 100 times higher than the control. The magnetic field generator associated with the cellular suspension recycle is a new way of magnetic treatment in fermentation processes and could be appropriate to industrial scale up.
Related Concept Videos
Stringent Response in E. coli
Bacterial Gastroenteritis
Other Unique Bacteria

