It is difficult to accurately determine the ultimate efficacy of any preservative outside of simple cosmetic or pharmaceutical formulations. It is therefore necessary to obtain some assurance of possible use performance in a formulated product. Challenge testing is a method in which a product is tested by exposure to certain types of bacteria and fungi to determine whether it is adequately protected.
Evaluation of the protective efficacy of a product during its intended shelf life is necessary. Test organisms should represent those likely to emerge as contaminants during use. In general, gram-positive and gram-negative bacteria, molds and yeasts are used. Interpretation of data is normally based on pharmacopoeia or other official protocols. These tests should be performed at the beginning, during and at the end of the product's shelf life.
The presence of an organism in a product does not necessarily mean it will cause problems or jeopardize the product's shelf life. Most pathogens and spoilage organisms need to survive and grow to pose a risk to food. Challenge testing is used to determine the behavior of organisms present in a product. It involves intentionally inoculating the product with the relevant organisms. The product is then stored and tested for these organisms throughout its shelf life.
In the test, analysis, measurement and evaluation studies carried out in our organization, national and international standards and applicable legal regulations are complied with and reliable and impartial results are obtained. These studies are based on the latest technological equipment, trained and experienced staff and modern methods. Among the numerous tests carried out in this context, there are also challenge tests services.
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