Liha töötlemine
mentation such as L. sakei, L. curvatus, and elements, involved in the control of virulence
L. plantarum have been found to show such factor synthesis, has been recently identified.
resistance (Holley and Blaszyk 1997; Teuber Remarkably, strains of S. xylosus were iso-
and Perreten 2000; Gevers et al. 2003). Some lated from patients who had an underlying
genetic determinants, such as chlorampheni- disease. The same species has been reported
col acetyltransferase (cat-TC), erythromycin to be involved in infections of poultry
(ermB), and tetracycline (tetL, tetM, and tetS (Aarestrup et al. 2000).
resistance genes), have been identified, sug- Although CNS of food origin has not been
gesting that horizontal gene transfer may found to produce nosocomial infections,
Starter Cultures for Meat Fermentation 213
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