Modelling and predicting the simultaneous growth of Listeria monocytogenes and spoilage micro-organisms in cold-smoked salmon

摘要: B. G IMEN E Z A N D P. L R D. 2003. Aims: To evaluate and model the simultaneous growth of Listeria monocytogenes spoilage micro-organisms in cold-smoked salmon. Methods Results: Growth kinetics L. monocytogenes, lactic acid bacteria (LAB), Enterobacteriaceae, enterococci Photobacterium phosphoreum were determined two series challenge tests with sliced vacuum-packed salmon (SVP-CSS). The product contained a high level smoke components at 2� C levels increased <100-fold 193 days. Without addition micro-organisms, reached ca 10 8 CFU g )1 5, 10, 17AE5 25� C. Inoculation reduced this to 2 -10 4 . LAB dominated microfora SVP-CSS competition between was appropriately described by simple expansion Logistic model. This interaction aided predicting naturally contaminated SVP- CSS when it used combination expanded versions existing secondary models for LAB. Conclusions: Temperature, water activity/NaCl, LAB, lesser extent lactate pH control SVP-CSS. These factors must be included mathematical predict pathogen product. Significance Impact Study: suggested predictive can support assessment management human health risk due