In-plant validation studies

Since use of a pathogenic microorganism in processing facilities is not advised, surrogate microorganisms are used as test organisms for in-plant validation studies. Surrogates are non-pathogenic microorganisms that mimic the resistance of foodborne pathogens under different kinds of stress (heat etc.). Due to their safety, surrogates are used directly at the plant (pilot or industrial), to test the efficacy of microbial kill steps. In order to streamline in-plant process validation studies, Novolyze has developed SurroNov®, the first range of dried, ready-to-use surrogate bacteria.

THE SURROGATE IS INOCULATED AT HIGH AND CONTROLLED CONCENTRATION WITH A FOOD INGREDIENT

CONCENTRATION
8-LOG CFU/G

THE INOCULATED FOOD IS INTRODUCED IN THE PROCESS TO VALIDATE

SURROGATE
= NON-PATHOGENIC
= SAFE IN-PLANT USE

POST-PROCESS SAMPLES ARE RECEIVED AND ENUMERATED

CONCENTRATION
3-LOG CFU/G

PROCESS LETHALITY = 5 – LOG

Novolyze is able to coordinate an in-plant validation project at each step. A standard project usually includes four different steps:

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