Category Archives: Staphylococcal Toxin

France – ROQUEFORT AOP BLACK BUTTERFLY – Staphylococcal Toxins

Posted on May 16, 2023 | Leave a comment

Gov france

Identification information of the recalled product

  • Product category Feed
  • Product subcategory Milk and dairy products
  • Product brand name BUTTERFLY
  • Model names or references BLACK BUTTERFLY
  • Identification of products
    GTIN Batch Date
    0205248000000 0390217430 Date of minimum durability 05/24/2023
  • Packaging cut sale
  • Marketing start/end date From 03/31/2023 to 05/05/2023
  • Storage temperature Product to be stored in the refrigerator
  • Geographic area of ​​sale 44700 ORVAULT
  • Distributors E.Leclerc Orvault Grand Val

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Posted in food contamination, food handler, Food Hazard, Food Hygiene, Food Inspections, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Testing, Food Pathogen, Food Poisoning, Food Quality, food recall, Food Safety, Food Safety Alert, Food Safety Management, Food Safety Regulations, Food Testing, Food Toxin, Staphylococcal Toxin, Staphylococcus aureus

Research – Evaluation of antimicrobial activity and mechanism of Mentha longifolia L. essential oil

Posted on May 13, 2023 | Leave a comment

Wiley Online

As the interest in “natural” and “safe” products grows, the use of natural products instead of synthetic preservatives to combat food spoilage and poisoning caused by microorganisms during processing and storage has become a prioritized option. The present research evaluated the antibacterial activity of the Mentha longifolia L. essential oil (MLEO) against several pathogenic bacteria, and the mechanism of action against methicillin-resistant Staphylococcus aureus (MRSA). Gas Chromatography Quadrupole Time-of-Flight Mass Spectrometry (GC-Q-TOF MS) analysis suggested that main components of MLEO were carvone (47.39%) and limonene (12.48%). The oil showed considerable antibacterial activity with MIC values of 0.394–1.576 mg/mL, and could be a promising bactericide. Non-targeted metabolomics analysis based on GC-Q-TOF MS identified 66 different metabolites, and Kyoto Encyclopedia of Genes and Genomes enrichment analysis of these metabolites revealed that MLEO achieves the effects by affecting amino acid metabolism in MRSA.

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Posted in antimicrobial resistance, Antimicrobials, MRSA, Staphylococcal Toxin, Staphylococcus aureus

Research – Microbiological Risk Assessment in Foods: Background and Tools, with a Focus on Risk Ranger

Posted on April 9, 2023 | Leave a comment

MDPI

Risk assessment is an important phase of the food production path; it is strictly related to the processing chain as a necessary step for safe foods. This paper represents a contribution to understanding what is and how risk assessment could be conducted; it aims to provide some information on the structure of risk assessment, the tools for its identification and measurement and the importance of risk assessment for correct communication. In this context, after a focus on the background and on some commonly used tools (Risk Ranger, FDA-iRisk, decision tree, among others), the paper describes how to perform risk assessment through three case studies: lettuce (for Listeria monocytogenes), chicken salad (for Escherichia coli), and fresh egg pasta (for Staphylococcus aureus) in the first step, and then a comparison of risk for chicken salad contaminated by different pathogens (E. coli O157:H7, Campylobacter spp. and Salmonella sp.). As a final step, a critical evaluation of Risk Ranger was carried out, pointing out its pros and cons.

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Posted in Decontamination Microbial, E.coli, E.coli O157, E.coli O157:H7, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, Listeria, Listeria monocytogenes, microbial contamination, Microbial growth, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, Salmonella, Staphylococcal Toxin, Staphylococcus aureus

France – Thin cuts of Roquefort made from frozen raw sheep’s milk – Staphylococcal Toxins

Posted on April 3, 2023 | Leave a comment

Gov france

Identification information of the recalled product

  • Product category Feed
  • Product subcategory Milk and dairy products
  • Product brand name ROQUEFORT COMPANY
  • Model names or references fine cuts of Roquefort made from frozen raw sheep’s milk – ROQUEFORT SOCIETE
  • Identification of products
    GTIN Batch Date
    3023260030232 L61821 Date of minimum durability 30/08/2023
  • Packaging 500g bag
  • Marketing start/end date From 08/11/2022 to 03/28/2023
  • Storage temperature Product to keep in the freezer
  • Health mark FR 12-203-011 EC
  • Geographic area of ​​sale Whole France
  • Distributors Restaurants and wholesalers

Practical information regarding the recall

  • Reason for recall Detection of staphylococcal enterotoxins
  • Risks incurred by the consumer Staphylococcus aureus (causative agent of staphylococcal poisoning)

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Posted in food contamination, food handler, Food Hazard, Food Hygiene, Food Inspections, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Testing, Food Poisoning, Food Quality, food recall, Food Safety, Food Safety Alert, Food Safety Management, Food Safety Regulations, Food Testing, Food Toxin, Staphylococcal Toxin, Staphylococcus aureus

France – Reblochon de Savoie PDO – Staphylococcus aureus

Posted on March 20, 2023 | Leave a comment

Gov france

Identification information of the recalled product

  • Product category Feed
  • Product subcategory Milk and dairy products
  • Product brand name Val d’Arly cooperative
  • Model names or references Val d’Arly cooperative
  • Identification of products
    Batch Date
    331128 Date of minimum durability 01/04/2023
  • Packaging FILM PAPER
  • Marketing start/end date From 01/02/2023 to 06/02/2023
  • Storage temperature Product to be stored in the refrigerator
  • Health mark FR 73 114 001 CE
  • Geographic area of ​​sale Departments: BOUCHES-DU-RHONE (13), ILLE-ET-VILAINE (35), RHONE (69), HAUTE-SAVOIE (74), ESSONNE (91), VAL-D’OISE (95)
  • Distributors Wholesalers for catering professionals

Practical information regarding the recall

  • Reason for recall Possible presence of Staphylococci (precautionary principle)
  • Risks incurred by the consumer Staphylococcus aureus (causative agent of staphylococcal poisoning)

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Posted in food contamination, food handler, Food Hazard, Food Hygiene, Food Inspections, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Testing, Food Pathogen, Food Poisoning, Food Quality, food recall, Food Safety, Food Safety Alert, Food Safety Management, Food Safety Regulations, Food Testing, Food Toxin, Staphylococcal Toxin, Staphylococcus aureus

Research – Microbiological Quality and Safety of Fresh Turkey Meat at Retail Level, Including the Presence of ESBL-Producing Enterobacteriaceae and Methicillin-Resistant S. aureus

Posted on March 19, 2023 | Leave a comment

MDPI

Abstract

The aim of this work was to study the microbiological safety and quality of marketed fresh turkey meat, with special emphasis on methicillin-resistant S. aureus, ESBL-producing E. coli, and K. pneumoniae. A total of 51 fresh turkey meat samples were collected at retail level in Spain. Mesophile, Pseudomonas spp., enterococci, Enterobacteriaceae, and staphylococci counts were 5.10 ± 1.36, 3.17 ± 0.87, 2.03 ± 0.58, 3.18 ± 1.00, and 2.52 ± 0.96 log CFU/g, respectively. Neither Campylobacter spp. nor Clostridium perfringens was detected in any sample. ESBL-producing K. pneumoniae and E. coli were detected in 22 (43.14%), and three (5.88%) samples, respectively, all of which were multi-resistant. Resistance to antimicrobials of category A (monobactams, and glycilcyclines) and category B (cephalosporins of third or fourth generation, polymixins, and quinolones), according to the European Medicine Agency classification, was found among the Enterobacteriaceae isolates. S. aureus and methicillin-resistant S. aureus were detected in nine (17.65%) and four samples (7.84%), respectively. Resistance to antimicrobials of category A (mupirocin, linezolid, rifampicin, and vancomycin) and category B (cephalosporins of third- or fourth generation) was found among S. aureus, coagulase-negative staphylococci, and M. caseolyticus isolates.

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Posted in Enterococcus, ESBL, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, Food Pathogen, microbial contamination, Microbial growth, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, MRSA, Pathogen, Staphylococcal Toxin, Staphylococcus aureus

RASFF Alert -Coagulase-Positive Staphylococci – Frozen Vegetable Dumplings

Posted on March 3, 2023 | Leave a comment

RASFF

Coagulase-positive staphylococci in frozen vegetable dumplings from Bulgaria in Germany

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Posted in food contamination, food handler, Food Hazard, Food Hygiene, Food Inspections, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Testing, Food Pathogen, Food Poisoning, Food Quality, food recall, Food Safety, Food Safety Alert, Food Safety Management, Food Safety Regulations, Food Testing, Food Toxin, RASFF, Staphylococcal Toxin, Staphylococcus aureus

Switzerland – Swiss checks find microbially contaminated fruit salads

Posted on February 28, 2023 | Leave a comment

Food Safety News

Listeria and coagulase-positive Staphylococci have been found during inspections of fruit salads in Switzerland, according to the Swiss Association of Cantonal Chemists (ACCS).

Cantonal chemists analyzed the microbiological quality of fruit salads by taking 205 samples.

During the control, organized from May to September 2022, the samples of fruit salads were taken throughout Switzerland and Liechtenstein to check the microbial quality and for the presence of bacteria that could pose a health risk.

Food control is done by cantons, which carry out inspections and laboratory analyses with the help of cantonal chemists. Switzerland is made up of 26 regions called cantons.

Fruit salads can represent a health risk, particularly if storage temperatures and times are not adequate and products are intended for vulnerable people in retirement homes, nursing homes, or hospitals.

Targeted sampling looked at types of fruit more likely to be contaminated by bacteria such as low-acid fruits like melon or watermelon and followed criteria set in food legislation.

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Posted in bacterial contamination, cross contamination, food contamination, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, Listeria, Listeria monocytogenes, microbial contamination, Microbial growth, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, Staphylococcal Toxin, Staphylococcus aureus

Research – Microbiological safety of aged meat

Posted on January 29, 2023 | Leave a comment

EFSA

Abstract

The impact of dry‐ageing of beef and wet‐ageing of beef, pork and lamb on microbiological hazards and spoilage bacteria was examined and current practices are described. As ‘standard fresh’ and wet‐aged meat use similar processes these were differentiated based on duration. In addition to a description of the different stages, data were collated on key parameters (time, temperature, pH and aw) using a literature survey and questionnaires. The microbiological hazards that may be present in all aged meats included Shiga toxin‐producing Escherichia coli (STEC), Salmonella spp., Staphylococcus aureus, Listeria monocytogenes, enterotoxigenic Yersinia spp., Campylobacter spp. and Clostridium spp. Moulds, such as Aspergillus spp. and Penicillium spp., may produce mycotoxins when conditions are favourable but may be prevented by ensuring a meat surface temperature of −0.5 to 3.0°C, with a relative humidity (RH) of 75–85% and an airflow of 0.2–0.5 m/s for up to 35 days. The main meat spoilage bacteria include Pseudomonas spp., Lactobacillus spp. Enterococcus spp., Weissella spp., Brochothrix spp., Leuconostoc spp., Lactobacillus spp., Shewanella spp. and Clostridium spp. Under current practices, the ageing of meat may have an impact on the load of microbiological hazards and spoilage bacteria as compared to standard fresh meat preparation. Ageing under defined and controlled conditions can achieve the same or lower loads of microbiological hazards and spoilage bacteria than the variable log10 increases predicted during standard fresh meat preparation. An approach was used to establish the conditions of time and temperature that would achieve similar or lower levels of L. monocytogenes and Yersinia enterocolitica (pork only) and lactic acid bacteria (representing spoilage bacteria) as compared to standard fresh meat. Finally, additional control activities were identified that would further assure the microbial safety of dry‐aged beef, based on recommended best practice and the outputs of the equivalence assessment.

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Posted in Aspergillus, Campylobacter, Clostridium, Decontamination Microbial, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, microbial contamination, Microbial growth, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, Penicillium spp, Research, Salmonella, Staphylococcal Toxin, Staphylococcus aureus, STEC, STEC E.coli, Yersinia

RASFF Alert- Staphylococcus aureus – Pasta

Posted on January 27, 2023 | Leave a comment

RASFF

Staphylococcus aureus in pasta from Italy in Germany

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Posted in food contamination, food handler, Food Hazard, Food Hygiene, Food Inspections, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Testing, Food Pathogen, Food Poisoning, food recall, Food Safety, Food Safety Alert, Food Safety Management, Food Safety Regulations, Food Testing, Food Toxin, RASFF, Staphylococcal Toxin, Staphylococcus aureus