Foods may be unsafe to eat after a disaster or emergency. To prevent foodborne illness, prepare for emergencies and take key steps during and after power outages, floods, and other emergencies.
KSWFoodWorld
Research – Inhibitory Effects of Lactobionic Acid on Biofilm Formation and Virulence of Staphylococcus aureus
Abstract
Staphylococcus aureus biofilm is a common bio-contaminant source that leads to food cross-contamination and foodborne disease outbreaks. Hence, there is a need for searching novel antibiofilm agents with potential anti-virulence properties to control S. aureus contamination and infections in food systems. In this study, the antibiofilm effects of lactobionic acid (LBA) against S. aureus and its influence on virulence were explored. The minimum inhibition concentration of LBA on S. aureus was 8 mg/mL. Viable count and crystal violet assays revealed that LBA inhibited and inactivated S. aureus biofilms. Microscopic observations further confirmed the antibiofilm activity of LBA on S. aureus that disrupted the biofilm architecture and inactivated the viable cells in biofilms. Moreover, LBA decreased the release of extracellular DNA (eDNA) and extracellular polysaccharide (EPS) in S. aureus biofilms. LBA suppressed biofilm formation by intervening metabolic activity and reduced virulence secretion by repressing the hemolytic activity of S. aureus. Furthermore, LBA altered the expressions of biofilm- and virulence-related genes in S. aureus, further confirming that LBA suppressed biofilm formation and reduced the virulence secretion of S. aureus. The results suggest that LBA might be useful in preventing and controlling biofilm formation and the virulence of S. aureus to ensure food safety.
France – Reblochon ferme AOP – Listeria monocytogenes
Product Category
Food
Product subcategory
Milk and dairy products
Product brand name
Reblochon farmhouse
Model names or references
Reblochon ferme AOP 450 g
Product identification
Batch Date
10 SEPT 2024 Expiry date 09/10/2024
Packaging
Paper
Start/End of marketing date
From 08/17/2024 to 08/31/2024
Storage temperature
Product to be kept in the refrigerator
Health mark
FR-74-280-419-CE
Geographic area of sale
Thones
Distributors
Daisy Farm Shop
France -Mackerel fillet with onions cooked and smoked on site – Listeria monocytogenes
Product Category
Food
Product subcategory
Fishery and aquaculture products
Product brand name
DEVELOPED BY US
Model names or references
Mackerel fillet with onions cooked and smoked on site
Product identification
GTIN Date
0204120000000 Expiry date 08/26/2024
Packaging
UNDER A VACUUM
Start/End of marketing date
From 08/15/2024 to 08/26/2024
Storage temperature
Product to be kept in the refrigerator
Additional information
SELF-SERVICE DEPARTMENT
Geographic area of sale
LECLERC ARCONNAY
Distributors
LECLERC ARCONNAY
France – Duck scratchings with garlic – Listeria monocytogenes
Product Category
Food
Product subcategory
Meats
Product brand name
VAUX
Model names or references
Duck scratchings with garlic sold in the delicatessen section
Product identification
GTIN
0203658000000
Packaging
At the customer’s request
Start/End of marketing date
From 08/27/2024 to 09/04/2024
Storage temperature
Product to be kept in the refrigerator
Additional information
Lot 31E432A434B
Geographic area of sale
Leclerc Trélissac
Distributors
Leclerc
Posted in Listeria, Listeria France, Listeria monocytogenes
France – Merguez – Listeria monocytogenes
Product Category
Food
Product subcategory
Meats
Product brand name
Leclerc
Model names or references
Merguez packaged in packs of 4 or 8
Product identification
GTIN Batch Date
0202704000000 243420 Expiry date 08/26/2024
0202839000000 243420 Expiry date 08/26/2024
Packaging
by 4 or by 8 merguez
Start/End of marketing date
From 09/20/2024 to 09/26/2024
Storage temperature
Product to be kept in the refrigerator
Additional information
sold in the self-service butcher’s section
Geographic area of sale
Leclerc Trélissac
Distributors
Leclerc Trélissac
Posted in Listeria, Listeria France, Listeria monocytogenes
France – Merguez – Listeria monocytogenes
- Product CategoryFood
- Product subcategoryMeats
- Product brand nameLeclerc
- Model names or referencesMerguez packaged by 4 self-service departments, Merguez traditional butcher’s department
- Product identification
GTIN Batch Date 0202704000000 243420 Expiry date 08/26/2024 0205072000000 - PackagingPackaging of 4 or at customer request
- Start/End of marketing dateFrom 08/22/2024 to 08/25/2024
- Storage temperatureProduct to be kept in the refrigerator
- Additional informationMerguez sold in the traditional section from August 22 to August 24, 2024
- Geographic area of saleLeclerc of Perigueux
- DistributorsLeclerc
Posted in Listeria, Listeria monocytogenes
USA – Investigations of Foodborne Illness Outbreaks
What’s New
- A new outbreak of Salmonella Enteritidis (ref #1250) linked to a not yet identified product has been added to the table. FDA has initiated an onsite inspection and sample collection.
- For the outbreak of E. coli O157:H7 (ref #1249) linked to a not yet identified product, the case count has increased from 25 to 26.
- For the outbreak of Listeria monocytogenes (ref #1247) linked to a not yet identified product, FDA has initiated sample collection.
- For the outbreak of Cyclospora cayetanensis illnesses (ref #1245) linked to a not yet identified product, the case count has increased from 41 to 50 cases.
- For the outbreak of Salmonella Newport (ref #1248) linked to a not yet identified product, the case count has increased from 6 to 7.
- For the outbreak of Salmonella Typhimurium (ref #1234) linked to a not yet identified product, FDA has initiated an onsite inspection.
- For the investigation of illnesses (ref #1233) linked to Diamond Shruumz-brand Chocolate Bars, Cones, and Gummies, the advisory has been updated to include additional illnesses and sample results.
USA – Nevada health district posts public alert related to illegal sales of raw milk
Public health officials in Southern Nevada are alerting the public about illegal sales of unpasteurized, raw milk.
The Southern Nevada Health District posted the alert on Sept. 4 after discovering raw milk on store shelves.
“The sale of raw milk, and its products, is illegal in Clark County due to serious health concerns. SNHD advises residents to only consume pasteurized milk, which is treated to eliminate germs that can cause severe illness,” according to the alert posted by the health district.
Australia – Yersinia outbreak linked to milkshakes in Australia.
Scientists have found a contaminated ingredient used in milkshakes was likely to blame for a Yersinia outbreak in an Australian state.
In January 2023, an outbreak of Yersinia enterocolitica in residential aged care facilities was identified by the Gold Coast Public Health Unit and confirmed using whole genome sequencing.
There were 55 cases, including six staff. Sick residents ranged in age from 54 to 101 with a median of 87 years old. 41 females and 14 males were affected. Date of onset was known for 46 cases and ranged from Jan. 16 to Feb. 17, 2023, with a peak in late January. No cases went to the emergency department. One person, who was ill prior to Yersinia infection, died.
