Category Archives: Food Microbiology Blog

Research – Killing of a Multispecies Biofilm Using Gram-Negative and Gram-Positive Targeted Antibiotic Released from High Purity Calcium Sulfate Beads

Posted on September 17, 2023 by | Leave a comment

MDPI

Abstract

Background: Multispecies biofilm orthopedic infections are more challenging to treat than mono-species infections. In this in-vitro study, we aimed to determine if a multispecies biofilm, consisting of Gram positive and negative species with different antibiotic susceptibilities could be treated more effectively using high purity antibiotic-loaded calcium sulfate beads (HP-ALCSB) containing vancomycin (VAN) and tobramycin (TOB) in combination than alone. Methods: Three sets of species pairs from bioluminescent strains of Pseudomonas aeruginosa (PA) and Staphylococcus aureus (SA) and clinical isolates, Enterococcus faecalis (EF) and Enterobacter cloacae were screened for compatibility. PA + EF developed intermixed biofilms with similar cell concentrations and so were grown on 316L stainless steel coupons for 72 h or as 24 h agar lawn biofilms and then treated with HP-ALCSBs with single or combination antibiotics and assessed by viable count or bioluminescence and light imaging to distinguish each species. Replica plating was used to assess viability. Results: The VAN + TOB bead significantly reduced the PA + EF biofilm CFU and reduced the concentration of surviving antibiotic tolerant variants by 50% compared to single antibiotics. Conclusions: The combination of Gram-negative and positive targeted antibiotics released from HP-ALCSBs may be more effective in treating multispecies biofilms than monotherapy alone.

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Posted in Biofilm, Decontamination Microbial, Enterococcus, Enterococcus faecalis, Enterococcus faecium, 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, Pseudomonas, Pseudomonas aeruginosa, Staphylococcus aureus

Research – Review of visual analytics methods for food safety risks

Posted on September 16, 2023 by | Leave a comment

Nature.com

With the availability of big data for food safety, more and more advanced data analysis methods are being applied to risk analysis and prewarning (RAPW). Visual analytics, which has emerged in recent years, integrates human and machine intelligence into the data analysis process in a visually interactive manner, helping researchers gain insights into large-scale data and providing new solutions for RAPW. This review presents the developments in visual analytics for food safety RAPW in the past decade. Firstly, the data sources, data characteristics, and analysis tasks in the food safety field are summarized. Then, data analysis methods for four types of analysis tasks: association analysis, risk assessment, risk prediction, and fraud identification, are reviewed. After that, the visualization and interaction techniques are reviewed for four types of characteristic data: multidimensional, hierarchical, associative, and spatial-temporal data. Finally, opportunities and challenges in this area are proposed, such as the visual analysis of multimodal food safety data, the application of artificial intelligence techniques in the visual analysis pipeline, etc.

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Posted in 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

Denmark – Listeria in hot-smoked trout fillet

Posted on September 15, 2023 by | Leave a comment

Foedevarestyrelsen

Geia Food A/S is recalling Seafood Selection hot-smoked trout fillets, as Listeria monocytogenes has been found in the product.

Image of the product

Which food is recalled

Seafood Selection hot-smoked trout fillet
Net weight: 100g
EAN barcode: 5710326020242
Best before dates: All dates from 08/09/2023 to 05/10/2023

Where is the product sold

The product is sold in Coop stores throughout the country.

Why is the product being recalled?

The bacterium Listeria monocytogenes has been detected in the product. Infection with Listeria bacteria can cause flu-like symptoms, fever and headache and, in rare cases, gastrointestinal problems.

Read more about Listeria in food here

Read more about infection with Listeria (listeriosis) here

What should you do as a consumer?

The Danish Veterinary and Food Administration advises consumers to return the product to the store where it was purchased, or to discard it.

If you experience symptoms in connection with consuming the product, you should contact your own doctor.

Who recalls the product

Geia Food A/S
Fuglevænget 9
9000 Aalborg

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Posted in food contamination, Food Hazard, Food Hygiene, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Testing, Food Pathogen, Food Quality, food recall, Food Safety, Food Safety Management, Food Safety Regulations, Listeria, Listeria monocytogenes, Listeria Smoked Fish

Denmark – Listeria in hot-smoked trout fillet

Posted on September 15, 2023 by | Leave a comment

Foedevarestyrelsen

Agustson A/S is recalling agustson hot-smoked Danish trout fillet, as Listeria monocytogenes has been found in the product.

Which food is recalled

agustson hot-smoked Danish trout fillet
Net content: 80g
Best-by dates: All dates up to and including 10/10/2023
Lot numbers: L23233, L23234, L23235, L23236, L23237, L23240, L23241, L23242, L23243, L23244, L232 47, L23248, L23249, L23250, L23251

Where is the product sold

The product is sold in REMA 1000 stores throughout the country.

Why is the product being recalled?

The bacterium Listeria monocytogenes has been detected in the product. Infection with Listeria bacteria can cause flu-like symptoms, fever and headache and, in rare cases, gastrointestinal problems.

Read more about Listeria in food here

Read more about infection with Listeria (listeriosis) here

What should you do as a consumer?

The Danish Veterinary and Food Administration advises consumers to return the product to the store where it was purchased, or to discard it.

If you experience symptoms in connection with consuming the product, you should contact your own doctor.

Who recalls the product

Agustson A/S
Englandsvej 11
7100 Vejle

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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 Quality, food recall, Food Safety, Food Safety Alert, Food Safety Management, Listeria, Listeria monocytogenes, Listeria Smoked Fish

Norway – Hamburgers and mincemeat/carbonade dough are withdrawn from the market due to suspicion of E.coli (EHEC)

Posted on September 15, 2023 by | Leave a comment

Matportalen

Nordfjord Kjøtt AS withdraws certain shelf life of hamburgers and minced meat in connection with the outbreak of E.coli (EHEC)

  • The products are sold in REMA 1000 stores throughout the country.
  • Consumers who may have products lying around at home are asked to throw the product away or return it to the store where it was purchased for a refund.
  • Good kitchen hygiene and correct heat treatment will prevent you from getting sick from eating the products in question. Consumers who think they have become ill after eating the products are asked to contact a doctor for advice and follow-up
  • The recall only applies to products with a shelf-life date as described in the link above:

Contact person Nordfjord Kjøtt AS:

Randi Støyva, email: randis@nordfjord-as.no , phone: 40 55 17 81
Contact person for the Norwegian Food Safety Authority:

Bente Sande, email: bente.sande@mattilsynet.no , phone: 91 52 42 85

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Posted in E.coli, EHEC, 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, STEC, STEC E.coli

Germany – Nautica rainbow trout fillets, 125 g in the varieties ‘natural’ and ‘pepper’ and XXL Nautica rainbow trout fillets ‘natural’, 140 g – Listeria monocytogenes

Posted on September 15, 2023 by | Leave a comment

LMW

Alert type: Groceries
Date of first publication: September 14, 2023
Product name:

Nautica rainbow trout fillets, 125 g in the varieties ‘natural’ and ‘pepper’ and XXL Nautica rainbow trout fillets ‘natural’, 140 g

Product images:

Trout fillets.PNG

Customer information

Manufacturer (distributor):

Manufacturer: company ‘Agustson a/s’; Sales via Lidl branches

Reason for warning:

Listeria monocytogenes was detected in the affected products. Listeria monocytogenes can cause severe gastrointestinal illnesses and symptoms similar to flu-like infections. In certain groups of people (infants, small children, pregnant women as well as old and sick people) serious illnesses can occur. Due to this health risk, customers should definitely pay attention to the recall and not consume the products.

Packaging Unit: 125g & 140g
Durability: all consumption data up to and including October 5th, 2023
Lot identification: Identity mark DK 4566 EG
Additional Information:

Further information can be found in the attached customer information.

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Posted in food contamination, food handler, Food Hazard, Food Hygiene, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Testing, Food Pathogen, Food Quality, food recall, Food Safety, Food Safety Management, Food Safety Regulations, Listeria, Listeria monocytogenes, Listeria Smoked Fish

France – SOFT SOUBRESSADE TO COOK – Salmonella

Posted on September 15, 2023 by | Leave a comment

Gov france

  • Product category Food
  • Product subcategory Others
  • Product brand name with out (sold in the traditional department)
  • Model names or references SOFT COOKED SOUBRESSADE sold in the traditional charcuterie section
  • Product identification
    GTIN Batch Date
    2346568000000 230243 Use-by date 09/30/2023
  • Packaging Sold in bulk in the traditional department
  • Start/end date of marketing From 09/05/2023 to 09/12/2023
  • Storage temperature Product to keep in the refrigerator
  • Geographical sales area E.LECLERC SAINT LYS store
  • Distributors E.LECLERC SAINT LYS store

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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 Quality, food recall, Food Safety, Food Safety Alert, Food Safety Management, Food Safety Regulations, Food Testing, Salmonella

France – SUPERIOR HAM 3 NUTS WITH RIND – Listeria monocytogenes

Posted on September 15, 2023 by | Leave a comment

Gov france

  • Product category Food
  • Product subcategory Meats
  • Product brand name UNBRANDED
  • Model names or references SUPERIOR HAM 3 NUTS WITH RIND
  • Product identification
    GTIN Batch Date
    0203238000000 All lots Use-by date between 08/08/2023 and 09/13/2023
  • Packaging Traditional or vacuum-sealed self-service charcuterie section
  • Start/end date of marketing From 08/08/2023 to 09/07/2023
  • Storage temperature Product to keep in the refrigerator
  • Geographical sales area Whole France
  • Distributors SAS TESTEDIS

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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 Quality, food recall, Food Safety, Food Safety Alert, Food Safety Management, Food Safety Regulations, Listeria, Listeria France, Listeria monocytogenes

RASFF Alerts – Ochratoxin A – Cayenne Pepper – Sultanas

Posted on September 15, 2023 by | Leave a comment

RASFF

Ochratoxin A in cayenne pepper from Turkey in Belgium, Germany in the Netherlands

RASFF

Ochratoxin A in sultanas from Türkey via the Netherlands in Belgium, 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 Poisoning, Food Toxin, Mold Toxin, Mould Toxin, Mycotoxin, Ochratoxin, Ochratoxin A

RASFF Alerts – Salmonella – Chicken Breast – Minced Chicken – Chilled Minced Pork – Poultry Meat Preparations – Betel Leaves – Poultry Kebab – Neck Steaks

Posted on September 15, 2023 by | Leave a comment

RASFF

Salmonella enterica ser. Infantis (present /25g) in chilled chicken breast fillet from Slovakia, with raw material from Ukraine in Slovakia and Czech Republic

RASFF

Salmonella Enteritidis and Salmonella Infantis in minced chicken meat from Netherlands in Italy

RASFF

Salmonella Infantis and Livingstone in chilled minced pork from Germany in Hungary

RASFF

Salmonella spp. in poultry meat preparations from Italy in Germany

RASFF

Salmonella in betel leaves from India in France

RASFF

Salmonella serogroup C in poultry kebab rotisserie from Austria in Slovakia

RASFF

Salmonella enteritidis in chicken and chicken parts from Germany in the Netherlands

RASFF

Salmonella spp. in Dry marinated Traditional neck steaks 400g from Lithuania in Estonia

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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 Quality, food recall, Food Safety, Food Safety Alert, Food Safety Management, Food Safety Regulations, Food Testing, RASFF, Salmonella, Salmonella in Chicken