Evaluation of the MicroFoss system for the detection of Listeria species in environmental samples.

The MicroFoss system was evaluated for its ability to detect Listeria species in environmental samples. The sensitivity and specificity of the MicroFoss were determined in relation to a standard culture method for Listeria detection. The sensitivities of both the MicroFoss and standard culture methods were similar (88.

Evaluation of the MicroFoss system for enumeration of total viable count, Escherichia coli and coliforms in ground beef.

This study was conducted to evaluate the performance of the MicroFoss system (Biosys, Ann Arbor, MI) for enumeration of total viable organisms, Escherichia coli and coliforms in ground beef. The system performance was compared to that of the USDA Bacteriological Analytical Method (BAM) reference culture methods. The correlation coefficients for the regression lines comparing the MicroFoss system detection times to the results of plate count methods for the total viable counts, coliform counts and the most probable number (MPN) method for E.