Studies and other services

Challenge test – Listeria monocytogenes growth potential studiesVerify the shelf life of your product based on food security and your product’s own quality characteristics. You must also take into account the expected storage, distribution and usage conditions.

This validates the safety and stability of the product throughout its shelf life.

Extensive knowledge and experience in all sectors of food production processes.
AINIA’s extensive database of analytical results of real samples, represented by all food sectors.
Extensive knowledge of the main pathogenic and/or relevant spoilage micro-organisms and their behaviour.
Extensive experience in conducting Listeria monocytogenesgrowth potential studies according to the current legislation protocol
Specific equipment that performs inoculations of micro-organisms under conditions that do not alter the intrinsic characteristics of the food.
Our Biological and Genetic Resources Collection contains thousands of strains from reputable culture collections (CECT, ATCC, CCUG), as well as wild strains isolated from a wide variety of food matrices. All are available for this type of study.
We can also adapt customised studies to each case according to the specific requirements of the regional health authorities. If necessary, we will even hold technical meetings with them.

Our solutions include:

Selection of relevant strains and inoculum preparation according to reference protocol.
Variability study of the physical-chemical characteristics of water activity and pH to determine the number of samples and batches to be studied
Assessment of the most appropriate inoculation procedure to ensure that the micro-organisms are correctly implanted and distributed homogeneously in the product. This also ensures that the product will retain its packaging conditions throughout its shelf life
Realistic simulation of the cold chain that the product under study will be subjected to from the moment it is manufactured until it is stored by the final consumer.
Conducting the corresponding analyses, according to Bioassay Laboratory analytical procedures/protocols and following ENAC-accredited methods where appropriate
Interpretation of results or calculation of Listeria monocytogenesGrowth Potential (δ)
Submittal of results report with conclusions

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Laura Verdú

Food quality and security