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United States Department of Agriculture

Agricultural Research Service

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Frequently Asked Questions (FAQs)


PMP Models 

Important notice:


The C. perfringens Predictive Model was developed using cooked uncured ground beef, pork or chicken as a substrate.  Use of this model is recommended to evaluate potential germination and growth of Clostridium perfringens spores during cooling of meat or poultry products.  This model is available on the web at the following URL:  


For any queries regarding these models, please contact the Predictive Microbiology Research Group:


Dr. Vijay Juneja, phone: 215-233-6500, e-mail:   

Dr. Andy Hwang, phone: 215-233-6416, e-mail:  

Dr. Lihan Huang, phone: 215-233-6620, e-mail:  


Contact Information


Advisory Panel

Last Modified: 12/12/2013