Related Experiment Video
Updated: Feb 15, 2026

An Allelotyping PCR for Identifying Salmonella enterica serovars Enteritidis, Hadar, Heidelberg, and Typhimurium
Published on: July 22, 2011
The detection of Salmonella enteritidis and S. typhimurium using immunomagnetic separation and conductance
N Parmar1, M C Easter1, S J Forsythe1
1†Department of Life sciences, Nottingham Polytechnic, Clifton Lane, Nottingham NG11 8NS‡Grand Metropolitan Foods Europe, Victoria Road, South Ruislip, Middlesex HA4 0HF, UK.
Abstract:
A rapid method for detection of Salmonella in milk powder is described. The technique involves immunomagnetic separation of Salmonella from pre-enrichment broths using new commercially-available materials, and detection using conductance measurements. Salmonella detection was enhanced by reducing the number and types of competing bacteria present and concentrating the number of Salmonella in the final assay. After a 6 h pre-incubation period Salmonella enteritidis, from an initial inoculum size of 20 cells/ml, were detected in 7.5 h by conductance.
Related Concept Videos
Three-Dimensional Microscopy in Microbiology
History of Microbiology
Two-Dimensional Microscopy in Microbiology
Key Techniques in Microbiology
Conduct Disorder
Conduction System of the Heart
The pacemaker cells are located in two primary nodes: the sinoatrial (SA) node and the atrioventricular (AV) node. The SA node pacemaker cells can autonomously depolarize, triggering an action potential that leads to the...

