USA -140 reports of food poisoning after eating at Sushi Nine, forcing temporarily closure

AOL

The co-owner of a popular Raleigh sushi restaurant is responding after dozens of people got sick after eating there. Wake County Environmental Services is investigating 140 cases of foodborne illness at Sushi Nine on Western Boulevard. The restaurant closed for 48 hours but has since reopened. With this time we have taken proactive steps to address recent reports of alleged food poison.

France – Wild smoked Pacific red salmon 4 slices 120 g – Listeria monocytogenes

Gov France

Product category
Food
Product subcategory
Fishing and aquaculture products
Product brand name
cora
Model names or references
Wild smoked Pacific red salmon 120 g
Product identification
GTIN Batch Date
3257986640332 G2920365C Use-by date 12/27/2023
Packaging
Tray
Start/end date of marketing
From 07/12/2023 to 08/12/2023
Storage temperature
Product to keep in the refrigerator
Health mark
FR 76.664.003 CE
Geographical sales area
Whole France
Distributors
supermarkets match

France – TOMME OF NORMANDY – Listeria monocytogenes

Gov France

Product category
Food
Product subcategory
Milk and dairy products
Product brand name
Sale in the traditional department
Model names or references
TOMME OF NORMANDY
Product identification
Batch
TOMME DE NORMANDIE – Sale in the traditional department
Packaging
The product is sold by the cut in the traditional aisle
Start/end date of marketing
From 10/11/2023 to 12/05/2023
Storage temperature
Product to keep in the refrigerator
Geographical sales area
Geispolsheim
Distributors
Leclerc Geispolsheim

Canada – Kopi Thyme brand Sauces and Soup Bases recalled due to potential presence of dangerous bacteria – Clostridium botulinum

CFIA

Kopi Thyme - Ipoh Laksa - Front

Product
Sauces and Soup Bases
Issue
Food – Microbial Contamination – Clostridium botulinum
What to do

Do not consume, use, sell, serve or distribute recalled products

Distribution
Online
British Columbia
Ontario
Saskatchewan
Possibly other provinces and territories

Issue

The affected products are being recalled from the marketplace because they may permit the growth of Clostridium botulinum.

Canada – Fresh cut cantaloupe products recalled due to Salmonella

CFIA

Fresh cut cantaloupe products
Issue
Food – Microbial Contamination – Salmonella
What to do

Do not consume, use, sell, serve, or distribute recalled products

Distribution
National

Issue

The affected products are being recalled from the marketplace due to possible Salmonella contamination. See link above for recall list.

Research – Study shows limits of ozonated water as sanitizer in raw veggie processing for pet food

Phys Org

Ozone can be a powerful and safe sanitizer when infused in water for food processing. However, in a recent Arkansas Agricultural Experiment Station study looking at its use in raw pet food processing, scientists found that ozonated water sanitation’s effectiveness is variable depending on how it is applied, and on what foods.

According to the study published in the Journal of Food Protection, it has been reported that 35% of sick pet visits to veterinary clinics are due to salmonellosis, a disease caused by the foodborne pathogen Salmonella, likely transmitted through contaminated raw pet food. The study also states that some human cases of salmonellosis have been linked to contaminated raw pet food.

Research – Lightning sparks scientists’ design of ultraviolet-C device for food sanitization

News Illinois

Scientists at the University of Illinois Urbana-Champaign have developed a portable, self-powered ultraviolet-C device called the Tribo-sanitizer that can inactivate two of the bacteria responsible for many foodborne illnesses and deaths.

Research -The Primary Mode of Action of Lippia graveolens Essential Oil on Salmonella enterica subsp. Enterica Serovar Typhimurium

MDPI

Abstract

Essential oils are known to exhibit diverse antimicrobial properties, showing their value as a natural resource. Our work aimed to investigate the primary mode of action of Cuban Lippia graveolens (Kunth) essential oil (EO) against Salmonella enterica subsp. enterica serovar Typhimurium (S. enterica ser. Typhimurium). We assessed cell integrity through various assays, including time-kill bacteriolysis, loss of cell material with absorption at 260 and 280 nm, total protein leakage, and transmission electron microscopy (TEM). The impact of L. graveolens EO on membrane depolarization was monitored and levels of intracellular and extracellular ATP were measured by fluorescence intensity. The minimum inhibitory and bactericidal concentrations (MIC and MBC) of L. graveolens EO were 0.4 and 0.8 mg/mL, respectively. This EO exhibited notable bactericidal effects on treated cells within 15 min without lysis or leakage of cellular material. TEM showed distinct alterations in cellular ultrastructure, including membrane shrinkage and cytoplasmic content redistribution. We also observed disruption of the membrane potential along with reduced intracellular and extracellular ATP concentrations. These findings show that L. graveolens EO induces the death of S. enterica ser. Typhimurium, important information that can be used to combat this foodborne disease-causing agent.

Research – Reduction and Growth Inhibition of Listeria monocytogenes by Use of Anti-Listerial Nisin, P100 Phages and Buffered Dry Vinegar Fermentates in Standard and Sodium-Reduced Cold-Smoked Salmon

MDPI

Abstract

Cold-smoked salmon are ready-to-eat products that may support the growth of pathogenic Listeria monocytogenes during their long shelf-life. Consumption of such contaminated products can cause fatal listeriosis infections. Another challenge and potential risk associated with CS salmon is their high levels of sodium salt. Excess dietary intake is associated with serious health complications. In the present study, anti-listerial bacteriocin (nisin), P100 bacteriophages (Phageguard L, PGL) and fermentates (Verdad N6, P-NDV) were evaluated as commercial bio-preservation strategies for increased control of L. monocytogenes in standard (with NaCl) and sodium-reduced (NaCl partially replaced with KCl) CS salmon. Treatments of CS salmon with nisin (1 ppm) and PGL (5 × 107 pfu/cm2) separately yielded significant initial reductions in L. monocytogenes (up to 0.7 log) compared to untreated samples. Enhanced additive reductions were achieved through the combined treatments of nisin and PGL. Fermentates in the CS salmon inhibited the growth of Listeria but did not lead to its eradication. The lowest levels of L. monocytogenes during storage were observed in nisin- and PGL-treated CS salmon containing preservative fermentates and stored at 4 °C, while enhanced growth was observed during storage at an abusive temperature of 8 °C. Evaluation of industry-processed standard and sodium-replaced CS salmon confirmed significant effects with up to 1.7 log reductions in L. monocytogenes levels after 34 days of storage of PGL- and nisin-treated CS salmon-containing fermentates. No differences in total aerobic plate counts were observed between treated (PGL and nisin) or non-treated standard and sodium-reduced CS salmon at the end of storage. The microbiota was dominated by Photobacterium, but with a shift showing dominance of Lactococcus spp. and Vagococcus spp. in fermentate-containing samples. Similar and robust reductions in L. monocytogenes can be achieved in both standard and sodium-replaced CS salmon using the bio-preservation strategies of nisin, PGL and fermentates under various and relevant processing and storage conditions.

Research – Is Chlorine Dioxide the Perfect Way to Control Legionella Bacteria?

Legionella Control

Chlorine and chlorine dioxide are two popular, but very different chemicals that are commonly used to treat water against lots of different bugs including legionella and other potentially dangerous bacteria. Both have their advantages and disadvantages especially when it comes to the control of Legionella bacteria in water systems.