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Detection and Enumeration of Campylobacter jejuni and Campylobacter coli by Indirect Impedimetry with an Oxygen Scavenging System

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Six strains of Campylobacter jejuni and Campylobacter coli were shown to grow in a variety of media, but, with one exception, they were unable to produce sufficient change in the electrical properties of the medium to allow their detection by impedance monitoring. With the use of an indirect method based on absorption of evolved carbon dioxide and a medium containing the oxygen scavenger Oxyrase, all strains were detectable, and correlations between time to detection and the logarithm of the inoculum level were excellent. The level of interstrain variation was sufficiently low that all data could be consolidated into a single calibration curve (r = 0.987).


Document Type: Miscellaneous

Affiliations: School of Biomedical and Life Sciences, University of Surrey, Guildford, Surrey GU2 7XH, UK

Publication date: September 1, 2003

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