Category Archives: Food Microbiology

UK – e-Bug

UKSHA

Evidence-based teaching resources

Use e-Bug lesson plans to teach about hygiene, microbes, vaccinations, and antimicrobial resistance from ages 3-16. The lesson plans are developed in collaboration with teachers and scientists, and are accredited by The Association for Science Education.

The descriptive transcript for the video is available here.

USA – Secret 2022 Cyclospora Outbreak in Florida Sickened 161

Food Poisoning Bulletin

In the Center for Disease Control’s weekly Morbidity and Mortality Weekly Report (MMWR) for the week of July 7, 2023, a cyclospora outbreak “partially attributable” to a Caesar salad kit was revealed. This secret 2022 cyclospora outbreak sickened at least 161 people in the state of Florida.

Quebec – Notice not to consume garlic flower pesto prepared and sold by the company François Lambert.One inc. – Clostridium botulinum

Quebec

QUEBEC CITY , July 7. 2023 /CNW/ – The Ministry of Agriculture, Fisheries and Food (MAPAQ), advises the population not to consume the product indicated in the table below, because it has not been prepared and packaged to ensure its safety. Indeed, this product could promote the proliferation of the bacterium  Clostridium botulinum . The product was sold by FrançoisLambert.One inc., located at 1270, Montée Sainte-Madeleine , in Notre-Dame-de-la-Paix .

Product name

Format

Affected lot

“GARLIC FLOWER PESTO”

250ml  _

Units sold until

July 6, 2023

The product that is the subject of this warning was offered for sale until July 6, 2023, only through the online store of the company named above. The product was packaged in a glass jar and sold at room temperature.

In addition, people who have this product in their possession are advised not to consume it. They must return it to the establishment where they bought it or throw it away.

Even if the affected product shows no sign of tampering or suspicious odor, it could be contaminated with Clostridium botulinum bacteria . Foods contaminated with the toxin of this bacterium can cause, when ingested, the following symptoms: facial paralysis, non-reactive or fixed pupils, difficulty swallowing, droopy eyelids, vision and speech disorders. In severe cases, the disease can cause death.

It should be noted that no case of illness associated with the consumption of this food has been reported to MAPAQ to date.

New Zealand – Dreamview Creamery brand Raw Milk (unpasteurised) – Listeria monocytogenes

MPI

8 July 2023: Dreamview Creamery is recalling specific batches of its Dreamview Creamery brand Raw Milk as the product may contain Listeria.

See-through jar with green lid.

Product identification
Product type Raw (unpasteurised) drinking milk
Name of product (size) Dreamview Creamery brand Raw Milk (unpasteurised) (1 Litre)
Batch marking 290623, 300623, 030723, 040723, and 050723
Date marking Use By 29/06/2023 up to and including 5/07/2023
Package size and description The product is sold in a 1 litre glass bottle
Distribution The product is distributed direct to customer by Dreamview Creamery.

The product has not been exported.

Notes This recall does not affect any other Dreamview Creamery brand products.

Consumer advice

Customers are asked to check the batch or date mark located on the lid of the milk bottle.

If you have purchased any of the affected product listed on this notice, do not consume it. Customers should return the product to their retailer for a full refund. Alternatively, consume after heating to 70°C and holding at this temperature for one minute. If you don’t have a thermometer, heat the milk until it nearly reaches a boil (or scald the milk) before drinking it.

There have been no reports of associated illness in New Zealand. If you have consumed any of this product and have any concerns about your health, seek medical advice.

Customers should return the product to their retailer for a full refund.

Who to contact

If you have questions, contact Dreamview Creamery:

  • Phone: 021 138 0360
  • Address: 430 Te Hutewai Road, Raglan

France – Goat cheese – STEC E.coli

Gov france

Identification information of the recalled product

  • Product category Feed
  • Product subcategory Milk and dairy products
  • Product brand name unbranded
  • Model names or references Round Valencay
  • Identification of products
    Batch Date
    175 Best before date 08/24/2023
  • Marketing start/end date From 06/26/2023 to 07/03/2023
  • Storage temperature Product to be stored in the refrigerator
  • Geographic area of ​​sale Heugnes
  • Distributors Earl Fromagerie Boisbourdin

Canada – Kootenay Meadows brand Nostrala Firm Surface-Ripened Organic Cheese recalled due to generic E. coli

CFIA

Summary

Product
Nostrala Firm Surface-Ripened Organic Cheese
Issue
Food – Microbial Contamination – E. Coli – non-pathogenic
What to do

Do not use, sell, serve or distribute the affected product.

Audience
Retail

Kootenay Meadows brand Nostrala Firm Surface-Ripened Organic Cheese recalled due to generic E. coli.

The recalled product has been sold in Alberta.

France – DOUGH POT – Listeria monocytogenes

Gov france

Identification information of the recalled product

  • Product category Feed
  • Product subcategory Meats
  • Product brand name STUFFED POITEVIN
  • Model names or references STUFFED PATEVIN POITEVIN
  • Identification of products
    GTIN Batch Date
    0180823173 0180823173 Use-by date 07/13/2023
  • Products List RECALL_PRODUCT.pdf Attachment
  • Marketing start/end date From 06/25/2023 to 07/05/2023
  • Storage temperature Product to be stored in the refrigerator
  • Geographic area of ​​sale Whole France
  • Distributors SUPER U CHIRE

Research – Inhibition of Salmonella Enteritidis by Essential Oil Components and the Effect of Storage on the Quality of Chicken

MDPI

Abstract

This research investigates the antibacterial potential of plant essential oil components including thymol, carvacrol, citral, cinnamaldehyde, limonene, and β-pinene against Salmonella Enteritidis (S. Enteritidis). Through the determination of minimum inhibitory concentration, three kinds of natural antibacterial agents with the best inhibitory effect on S. Enteritidis were determined, namely thymol (128 μg/mL), carvacrol (256 μg/mL), and cinnamaldehyde (128 μg/mL). Physical, chemical, microbial, and sensory characteristics were regularly monitored on days 0, 2, 4, and 6. The findings of this study reveal that both thymol at MIC of 128 μg/mL and carvacrol at MIC of 256 μg/mL not only maintained the sensory quality of chicken, but also decreased the pH, moisture content, and TVB-N value. Additionally, thymol, carvacrol and cinnamaldehyde successfully inhibited the formation of S. Enteritidis biofilm, thereby minimizing the number of S. Enteritidis and the total aerobic plate count in chicken. Hence, thymol, carvacrol, and cinnamaldehyde have more effective inhibitory activities against S. Enteritidis, which can effectively prevent the spoilage of chicken and reduce the loss of its functional components.

Research – Salmonella (non-typhoidal)

WHO

Key facts

  • Salmonella is 1 of 4 key global causes of diarrhoeal diseases.
  • Most cases of salmonellosis are mild; however, sometimes it can be life-threatening. The severity of the disease depends on host factors and the serotype of Salmonella.
  • Antimicrobial resistance is a global public health concern and Salmonella is one of the microorganisms in which some resistant serotypes have emerged, affecting the food chain.
  • Basic food hygiene practices, such as “cook thoroughly”, are recommended as a preventive measure against salmonellosis.

Research – Current Advances in Cheese Microbiology

MDPI

Cheese is a complex microbial ecosystem containing microorganisms that are either deliberately added or that enter milk, curd or cheese as contaminants. From a technological point of view, the microbiota of cheese could be classified according to the following scheme [1,2]: (i) (primary) starter cultures, composed of lactic acid bacteria (LAB) that “start” fermentation and, consequently, the acidification of milk and curd; (ii) (secondary) adjunct cultures, comprising different species of bacteria, yeasts and molds, which are intentionally added to the milk, the curd, the surface of the cheese or the interior of the previously punctured mass in the manufacture of blue cheeses, with the aim of participating in cheese ripening and the development of sensory characteristics; and (iii) (secondary) adventitious microbiota, made up of microorganisms that spontaneously contaminate milk or cheese at any of the production stages and that contribute, similarly to adjunct cultures, to the development of the characteristic appearance, texture and flavor of the different cheese varieties, yet which are occasionally responsible for defects and off-flavors.
Cheeses made from raw milk (especially from sheep or goats, or from cattle reared using extensive methods) are generally assumed to have a more intense and rich flavor than cheeses made from pasteurized or microfiltered milk. The native microbiota present in raw milk seems to be primarily responsible for the typical sensory properties and flavor development of these products. Nevertheless, it must be taken into account that the microbial diversity of raw milk (particularly raw cow’s milk) has been seriously threatened in industrialized countries as a consequence of the implementation of strict hygienic conditions on farms and during milking, as well as when stored at low temperatures. In certain current productions of traditional raw cow’s milk cheeses, the presence of adventitious bacteria such as enterococci has decreased dramatically compared to those analyzed several decades ago, and some flavor attributes are most likely being lost [3].
In order to control cheese ripening, the first and most focused approach would lie in the isolation and selection of autochthonous microbial cultures, returning them to cheesemakers for the production of the different cheese varieties. This choice would allow for the partial restoration of the flavor in productions where the use of raw milk is restricted, or where raw milk has undergone an improvement in its microbiological quality and a consequent modification of its “traditional” microbiota. The use of selected adjunct microbial cultures may enhance the typicality of the Protected Designation of Origin (PDO) cheeses, resulting in a closer sensory quality to that of traditional products [4].