ISO-TR 23932:2017, titled "Microbiology of the food chain - Horizontal method for the determination of low numbers of Campylobacter spp. - Part 1: Colony count technique", is a technical report published by the International Organization for Standardization (ISO).
Importance of ISO-TR 23932:2017 in Food Safety
ISO-TR 23932:2017 plays a critical role in ensuring food safety by providing a standardized method of detecting and quantifying low levels of Campylobacter spp. This bacterium is a common cause of foodborne illness globally, particularly through the consumption of contaminated poultry and other raw or undercooked meats.
By establishing a consistent and reliable testing protocol, ISO-TR 23932:2017 enables food producers, manufacturers, and regulatory bodies to accurately assess the presence of Campylobacter spp. in food samples. This information is crucial for implementing appropriate control measures and preventing outbreaks of foodborne diseases.
The Colony Count Technique
The colony count technique described in ISO-TR 23932:2017 allows for the enumeration of viable Campylobacter spp. cells present in food samples. This method involves plating diluted samples onto selective agar and incubating them under specific conditions to promote bacterial growth.
Following incubation, the colonies formed by Campylobacter spp. are counted and reported as colony-forming units per gram (CFU/g) of the original sample. This quantitative approach provides a measure of the contamination level and determines if it meets the acceptable limits set by regulatory authorities.
Benefits and Limitations of ISO-TR 23932:2017
The implementation of ISO-TR 23932:2017 brings several benefits to the food industry and consumers alike. Firstly, it enhances consumer protection by ensuring that food products are free from hazardous levels of Campylobacter spp.
Additionally, the standardized nature of the method allows for comparability between different laboratories, facilitating accurate monitoring of food safety throughout the supply chain. It also aids in the development of targeted control measures and risk assessment strategies.
However, it is important to note that ISO-TR 23932:2017 is specific to the colony count technique for Campylobacter spp. Other methods and technologies may be required for the detection of other foodborne pathogens or the confirmation of Campylobacter species.
Nina She