Listeria spp. Count

Listeria spp. What are the harms? Which Products Can Be Found? Where are Contamination and Growth Environments?

A disease caused by all food products produced under unhealthy and unsuitable conditions is Listeria disease. The Listeria genus includes 6 species. Among these, the only Listeria genus that is pathogenic to humans is Listeria monocytogenes.

Listeria spp. it is very common in nature. It can be found and developed in soil, water, milk, red and white meat, and leaf tissues of some green leafy vegetables.

Listeria monocytogenes in particular is one of the most important foodborne pathogens that cause disease in humans and animals. Listeria monocytogenes has the ability to grow and multiply at refrigerator temperatures, it poses an important problem especially in ready-to-eat foods. It is known that it can survive in a humid environment for a few months and in salty and dry environments for up to two years as it can grow at refrigerator temperatures.

In the analysis of L. monocytogenes, there is / is not applied in 25 g sample. L. monocytogenes in foods should not be included in foods ready for consumption for infants and special medical purposes. L. monocytogenes should not be detected more than 100 cfu / g during the shelf life of prepared foods.

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