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Fresh fish from France, Great Britain and Portugal were examined for the pathogens Aeromonas hydrophila, Clostridium botulinum, Listeria monocytogenes, Salmonella spp., Vibrio parahaemolyticus and Yersinia enterocolitica, whilst fish from Greece were examined for A. hydrophila, Cl. botulinum and V. parahaemolyticus only. Cl. botulinum and Salmonella spp. were not detected from any of the samples examined...
Concentrated yoghurt (labneh) with an inherently low count of non-lactic acid bacteria was inoculated with various levels of Listeria monocytogenes, and direct plating onto Listeria Selective Agar or PALCAM Agar proved effective for monitoring high counts. At levels of < 10 cfu/g, an MPN count using UVM I/Fraser Broth was more reliable, and a presumptive count, taking the colour change in...
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