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Development of Ion Mobility Spectrometry (IMS) Applications for Listeria Detection and Monitoring In Food Processing Plants

Investigators
Vinopal, Robert; Koerting, Claudia
Institutions
University of Connecticut
Start date
2003
End date
2005
Objective
The objective of this study was to collect and distinguish Listeria species by utilizing Ion Mobility Spectrometry (IMS) which employed a ramped heating system.
More information
Conclusions
IMS detection of Listeria on meat and the collection of aerosolized bacteria were demonstrated. Selectivity of bacterial detection was further improved by combining whole cell desorption and shorter incubation times in the presence of Listeria diagnostic media. The use of Teflon and glass fiber pads were utilized when complex samples were taken to improve thermal ramping capability.

Deliverable
IMS technology can be used as a first step in a rapid presumptive test for Listeria species.

Funding Source
Fndn. for Meat and Poultry Research and Education
Project number
01-222
Categories
Listeria
Predictive Microbiology