Comparison between the growth of Yersinia enterocolitica, Listeria monocytogenes, Escherichia coli O157:H7 and Salmonella spp. in ground beef packed by three commercially used packaging techniques

2000 ◽  
Vol 59 (3) ◽  
pp. 211-220 ◽  
Author(s):  
H Nissen ◽  
O Alvseike ◽  
S Bredholt ◽  
A Holck ◽  
T Nesbakken
Keyword(s):  
Escherichia Coli ◽  
Listeria Monocytogenes ◽  
Yersinia Enterocolitica ◽  
Ground Beef ◽  
Escherichia Coli O157 ◽  
Salmonella Spp

Microbiological Quality of Retail Imported Unprepared Whole Lettuces: A PHLS Food Working Group Study

1999 ◽  
Vol 62 (4) ◽  
pp. 325-328 ◽  
Author(s):  
C. LITTLE ◽  
D. ROBERTS ◽  
E. YOUNGS ◽  
J. de LOUVOIS
Keyword(s):  
Escherichia Coli ◽  
Listeria Monocytogenes ◽  
Microbiological Quality ◽  
Escherichia Coli O157 ◽  
Salmonella Spp ◽  
Shigella Spp ◽  
Natural Microflora ◽  
Production Practices ◽  
Campylobacter Spp

A study of imported unprepared whole lettuces sampled from supermarkets, greengrocers, shops, and market stalls found that all were of acceptable microbiological quality. Twenty-seven out of 151 (18%) imported lettuce samples had Enterobacteriaceae levels of 104 CFU/g or more. However, these bacteria that constitute part of the natural microflora of unprepared vegetables may also be derived from the soil and/or by poor handling. The pathogens, Salmonella spp., Shigella spp., Campylobacter spp., Escherichia coli O157:H7, Vibrio cholerae, Listeria monocytogenes, and also Escherichia coli, an indicator of fecal contamination, were not detected in any imported lettuces, indicating that hygiene, harvesting, and production practices were good. Imported lettuces with Enterobacteriaceae levels of 104 CFU/g or more varied with type of retail premises and the temperature at which the lettuces were displayed. Samples from greengrocers, shops, and market stalls were more likely to contain Enterobacteriaceae at levels in excess of 104 CFU/g than those from supermarkets.

Mixed culture enrichment of Escherichia coli O157:H7, Listeria monocytogenes, Salmonella enterica, and Yersinia enterocolitica

Food Control ◽  
2012 ◽  
Vol 26 (2) ◽  
pp. 269-273 ◽  
Author(s):  
Andrew G. Gehring ◽  
David M. Albin ◽  
Arun K. Bhunia ◽  
Hyochin Kim ◽  
Sue A. Reed ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Listeria Monocytogenes ◽  
Mixed Culture ◽  
Yersinia Enterocolitica ◽  
Salmonella Enterica ◽  
Escherichia Coli O157 ◽  
Culture Enrichment
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