scholarly journals Staphylococcus aureus: Characterisation and Quantitative Growth Description in Milk and Artisanal Raw Milk Cheese Production

Author(s):  
Albeta Medveov ◽  
ubomr Valk
2011 ◽  
Vol 28 (3) ◽  
pp. 492-496 ◽  
Author(s):  
Ragnhild Aakre Jakobsen ◽  
Ragna Heggebø ◽  
Elin Bekvik Sunde ◽  
Magne Skjervheim

2014 ◽  
Vol 97 (3) ◽  
pp. 1305-1312 ◽  
Author(s):  
J. Hummerjohann ◽  
J. Naskova ◽  
A. Baumgartner ◽  
H.U. Graber

2011 ◽  
Vol 74 (5) ◽  
pp. 849-864 ◽  
Author(s):  
SILVIO PENG ◽  
TAURAI TASARA ◽  
JÖRG HUMMERJOHANN ◽  
ROGER STEPHAN

The ability of foodborne pathogens to survive in certain foods mainly depends on stress response mechanisms. Insight into molecular properties enabling pathogenic bacteria to survive in food is valuable for improvement of the control of pathogens during food processing. Raw milk cheeses are a potential source for human infections with Shiga toxin–producing Escherichia coli (STEC). In this review, we focused on the stress response mechanisms important for allowing STEC to survive raw milk cheese production processes. The major components and regulation pathways for general, acid, osmotic, and heat shock stress responses in E. coli and the implications of these responses for the survival of STEC in raw milk cheeses are discussed.


2020 ◽  
Vol 23 (4) ◽  
pp. 494-503
Author(s):  
D. Bangieva

The main microbiological hazards of raw milk cheese are associated with Listeria monocytogenes, Escherichia coli and Staphylococcus aureus. Due to its high nutritional value, cheese is an excellent medium for the growth of these pathogens. This study was aimed to observe microbial dynamics of Bulgarian white brined cheese during cheese production and ripening. Microbiological analysis included determination of Staphylococcus aureus, Listeria spp. and Escherichia coli counts. Some physicochemical parameters, such as total titratable acidity, sodium chloride content, water activity and pH were also examined. Results revealed statistically significant increase in bacterial counts after cheesemaking steps and decrease at the end of the ripening period. Listeria monocytogenes was not detected in any of the cheese samples. Raw milk cheese was of unsatisfactory quality that emphasises the need for applying and maintaining good hygiene practices along the food chain to prevent microbial contamination and growth


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