scholarly journals Listeria monocytogenes in Milk Products

2016 ◽  
pp. 289-315 ◽  
Author(s):  
Kieran Jordan ◽  
Karen Hunt ◽  
Marion Dalmasso
Keyword(s):  
Listeria Monocytogenes ◽  
Milk Products

scholarly journals Whole-Genome Sequences of Six Listeria monocytogenes Strains Isolated from Food

2018 ◽  
Vol 7 (14) ◽  
Author(s):  
Jule Anna Horlbog ◽  
Hyein Jang ◽  
Gopal Gopinath ◽  
Roger Stephan ◽  
Claudia Guldimann
Keyword(s):  
Listeria Monocytogenes ◽  
Amino Acid ◽  
Whole Genome ◽  
Genome Sequences ◽  
Content Type ◽  
Milk Products ◽  
Stop Codons

Here, we report the whole-genome sequences of six Listeria monocytogenes strains isolated from meat and milk products in Switzerland. All of these strains carry premature stop codons or amino acid deletions in inlA.

scholarly journals Survivability of Salmonella and Escherichia coli O157:H7 Pathogens and Food Safety Concerns on Commercial Powder Milk Products

Dairy ◽  
2020 ◽  
Vol 1 (3) ◽  
pp. 189-201 ◽  
Author(s):  
Roshan Paswan ◽  
Young W. Park
Keyword(s):  
Escherichia Coli ◽  
Listeria Monocytogenes ◽  
Dairy Products ◽  
Milk Powder ◽  
Escherichia Coli O157 ◽  
Foodborne Illnesses ◽  
Milk Products ◽  
Salmonella Infections ◽  
Powder Milk ◽  
The U.S

Milk and dairy products are susceptible to the incidence of foodborne illnesses by numerous pathogens, including Listeria monocytogenes, Salmonella spp., Escherichia coli, enteropathogenic Campylobacter jejuni, Yersinia enterocolitica, Cronobacter (Enterobacter sakazakii) and Staphylococcus aureus. Annually Salmonella infections cause approximately 93.8 million cases of gastroenteritis and 155,000 deaths worldwide. Including meat and poultry, dairy products are the most commonly contaminated foods by Salmonella. Studies show that Salmonella, Escherichia coli O157:H7 and Listeria monocytogenes are among the top 5 pathogens causing hospitalization and life-threatening foodborne illnesses. The U.S. Centers for Disease Control and Prevention (CDC) estimated that annually around 1.2 million foodborne illnesses with more than 23,000 hospitalizations, 450 deaths and 130 outbreaks were attributed to Salmonella infection in the U.S. The Salmonella enteric in skim milk powder survived at three months storage, with water activity as low as 0.33. With respect to Escherichia coli O157:H7, it is capable of causing disease at a low dosage, ranging from 5–50 cells. Viable cells of Escherichia coli O157:H7 reportedly survive in infant formula powder for one year at 5 °C. The survivability of Escherichia coli in powder milk was significantly reduced with the synergistic effects of storage time and temperature. The U.S. Dairy Export Council recommends that milk powder should be stored in a cool and dry place, at a temperature not to exceed 27 °C, and a relative humidity not to exceed 65%. Reports have recommended that milk powder products need to be stored in light, oxygen, and moisture-proof containers. In this article, the survival of the major foodborne pathogens including Salmonella and Escherichia coli O157:H7 in powdered milk products from common dairy species such as cow and goats are reviewed.

Efficacy of UV Light for the Reduction of Listeria monocytogenes in Goat's Milk

2005 ◽  
Vol 68 (10) ◽  
pp. 2212-2216 ◽  
Author(s):  
K. E. MATAK ◽  
J. J. CHUREY ◽  
R. W. WOROBO ◽  
S. S. SUMNER ◽  
E. HOVINGH ◽  
...  
Keyword(s):  
Listeria Monocytogenes ◽  
Uv Light ◽  
Dose Range ◽  
Federal Regulations ◽  
Milk Products ◽  
Log Reduction ◽  
Goat’S Milk ◽  
Unpasteurized Milk ◽  
Goat's Milk ◽  
Uv Dose

Certain types of goat's cheeses are produced using unpasteurized milk, which increases the food safety concerns for these types of products. Popularity and consumption of goat's milk products have increased, and the niche market includes gourmet goat's cheeses. The U.S. Code of Federal Regulations and the Pasteurized Milk Ordinance both address the possibility for processing alternatives to heat treatment, and the use of UV light treatment may be a viable alternative that still ensures the safety of the product. Fresh goat's milk was inoculated with Listeria monocytogenes (L-2289) at 107 CFU/ml and exposed to UV light using the CiderSure 3500 apparatus (FPE Inc., Macedon, NY). Inoculated milk was exposed to a UV dose range between 0 and 20 mJ/cm2 to determine the optimal UV dose. A greater than 5-log reduction was achieved (P < 0.0001) when the milk received a cumulative UV dose of 15.8 ± 1.6 mJ/cm2. The results of this study indicate that UV irradiation could be used for the reduction of L. monocytogenes in goat's milk.

Survival of Listeria monocytogenes in Three Zimbabwean Fermented Milk Products

1996 ◽  
Vol 59 (4) ◽  
pp. 379-383 ◽  
Author(s):  
JOB M. DALU ◽  
SARA B. FERESU
Keyword(s):  
Listeria Monocytogenes ◽  
Ambient Temperature ◽  
Fermented Milk ◽  
Growth And Survival ◽  
Milk Products ◽  
Pasteurized Milk ◽  
Milk Samples ◽  
Unpasteurized Milk ◽  
Fermented Milk Products

The growth and survival of Listeria monocytogenes was studied in traditionally fermented unpasteurized and pasteurized milk and in an industrially fermented milk marketed in Zimbabwe. Inoculated milk samples were incubated at 20°C for 24 h, and then one set of samples of each type of milk was stored at ambient (20°C) and a duplicate set at refrigeration (5°C) temperatures for a further 96 h. The industrially fermented milk was least favorable to the survival of L. monocytogenes, followed by traditionally fermented unpasteurized milk and traditionally fermented pasteurized milk when these milks were stored at ambient temperature. A different trend was observed when the milks were stored at refrigeration temperature with traditionally fermented unpasteurized milk allowing the least survival of L. monocytogenes followed by industrially fermented milk and traditionally fermented pasteurized milk. More L. monocytogenes survived in all the three fermented milks when they were stored at refrigeration temperature than at ambient temperature.

Serotyping and antibiotic resistance of Listeria monocytogenes isolated from raw water buffalo milk and milk products

2020 ◽  
Vol 85 (9) ◽  
pp. 2889-2895
Author(s):  
Goknur Terzi Gulel ◽  
Ali Gucukoglu ◽  
Ozgur Cadirci ◽  
Erdem Saka ◽  
Mustafa Alisarli
Keyword(s):  
Antibiotic Resistance ◽  
Listeria Monocytogenes ◽  
Water Buffalo ◽  
Buffalo Milk ◽  
Raw Water ◽  
Milk Products
Sign in / Sign up

Export Citation Format

Share Document