Thermal inactivation of Enterococcus faecium
نویسندگان
چکیده
منابع مشابه
Characterization of vancomycin resistance in Enterococcus faecium and Enterococcus faecalis.
Vancomycin resistance in Enterococcus faecium 180, a clinical isolate from England, was studied. Resistance to vancomycin was transferable by conjugation to other enterococci. Expression of resistance was inducible and coincided with the appearance of a new membrane protein.
متن کاملKinetic analysis of Enterococcus faecium L,D-transpeptidase inactivation by carbapenems.
Bypass of classical penicillin-binding proteins by the L,D-transpeptidase of Enterococcus faecium (Ldt(fm)) leads to high-level ampicillin resistance in E. faecium mutants, whereas carbapenems remain the lone highly active β-lactams. Kinetics of Ldt(fm) inactivation was determined for four commercial carbapenems and a derivative obtained by introducing a minimal ethyl group at position 2. We sh...
متن کاملUltraviolet (UV-C) inactivation of Enterococcus faecium, Salmonella choleraesuis and Salmonella typhimurium in porcine plasma
The objective of this study was to assess the effectiveness of an ultraviolet (UV-C, 254 nm) irradiation system on reducing the load of Salmonella typhimurium (S. typhimurium), Salmonella choleraesuis (S. choleraesuis) resistant to streptomycin and Enterococcus faecium (E. faecium) inoculated in sterile porcine plasma and then subjected to different UV-C irradiation doses (750, 1500, 3000, 6000...
متن کاملHeat tolerance of vancomycin resistant Enterococcus faecium.
The heat tolerance of 27 Enterococcus faecium isolates in water was studied. Stationary phase cultures including vancomycin resistant and sensitive clinical and food isolates were exposed to heat at 60 degrees, 65 degrees, 71 degrees, and 80 degrees C for one, three, 10, and 30 minutes and the log10 reductions in bacterial counts were determined. Exposure at 71 degrees and 80 degrees C resulted...
متن کاملActivity of ceftaroline against Enterococcus faecium PBP5.
The opportunistic human pathogen Enterococcus faecium overproduces the low-affinity PBP5. In clinical strains, mutations in PBP5 further reduce its acylation rate by β-lactams. Previous studies have reported that ceftaroline had poor inhibitory activity against β-lactam-resistant E. faecium strains. In this study, we show that ceftaroline exhibits killing activity against our laboratory-derived...
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ژورنال
عنوان ژورنال: Czech Journal of Food Sciences
سال: 2008
ISSN: 1212-1800,1805-9317
DOI: 10.17221/682-cjfs