E. coli (STEC)
Shiga toxin-producing E. coli (STEC) testing
The Eurofins Food & Feed Testing laboratory network has expertise in detecting STEC. Products require reliable analytical methods to ensure they are free from this pathogen, which is caused by poor hygiene and sometimes responsible for severe infections. We offer a wide range of solutions to guarantee regulatory compliance and protect consumer health.
Key services
- Trace detection
- Quantification of E. coli (STEC)
- PCR rapid method for expedited release testing
Additional services
- Optimisation of control plans
- Crisis management support
Understanding E. coli (STEC)
STEC is naturally present in the intestinal microbiota of humans and animals. However, certain strains carry the stx gene, which is responsible for encoding Shiga toxins and potentially causing severe illness. These strains are often referred to as Enterohemorrhagic E. coli (EHEC), and can damage the kidneys, colon, nervous system, and brain, making them a major food safety concern.
Transmission and routes of contamination
The main sources of STEC transmission include raw or undercooked products such as:
- Undercooked minced meat
- Raw milk and unpasteurised dairy products
- Raw vegetables and sprouted seeds
- Unpasteurised juices (e.g. apple juice)
- Contaminated water or flour
Contamination often occurs during slaughter, milking, irrigation, food handling and processing, or as a result of runoff from ruminant farms. Contamination can also occur accidentally or due to insufficient treatment of drinking water. Cattle and sheep are common asymptomatic carriers.
Legal framework and guidelines
- Commission Implementing Regulation (EU) 2023/7 (authorising the placing on the market of Lacto-N-tetraose produced by derivative strains of Escherichia coli BL21(DE3) as a novel food)
- Commission Implementing Regulation (EU) 2023/1582 (conditions of use of the novel food 3′-Sialyllactose sodium salt produced by derivative strains of Escherichia coli BL21(DE3))
- Commission Regulation (EC) No 2073/2005 (microbiological criteria for foodstuffs)
Get in touch
Would you like to find out more about our testing solutions, or do you need tailored analytical support? Contact us today to get in touch with our experts.