Claranor Pulsed Light Sterilization
Pulsed Light Sterilization


The Microbiological Challenge Testing : in-line microbiological qualification

How to make sure your Claranor unit is performing well ?

We have a continuous scientific collaboration with world class laboratories like INRA, Fraunhofer IVV, CNRS ... to improve the knowledge on our technology.

We also perform with our microbiologists in-line testing in your facility to validate the efficiency of your equipment in the form of Microbiological Challenge Testing.

Objective of the Microbiological Challenge Testing (MCT) :

Demonstrate the efficiency of the Pulsed ligth unit installed on the filling line.

  • Perform the MCT in industrial conditions :
    • real running configuration
    • nominal line speed
  • meet the customer requirement in terms of log-reduction of test micro-organism.

Principle of the MCT : 

  • Samples of packaging are inoculated beforehand with the reference microorganism
  • These samples are placed on the line, under operating conditions, and treated by the Claranor Pulsed light equipment
  • They are removed from the line and analyzed, looking for surviving microorganisms, in order to assess the log reduction achieved.

How can we ensure neutrality of results :

The tests are carried out :

  • with the assistance of an external laboratory for the inoculation of the packaging, and carrying out the analyses.
  • aligned with the VDMA (German Engineering Federation) recommandations.
  • The tests must demonstrate the consistency of the results under operating conditions with those achieved under static conditions in the context of pre-sales tests.

Just another services offered to Claranor customers.

Database: effectiveness of pulsed light on caps and cups. 

Claranor has compiled numerous results for commonly used packaging in a database accessible via these links : Effectiveness of pulsed light on caps and cups.

More information : contact our Microbiological department, M Alain Berberian