Regular members

JEAN, Julie Professor

Researcher - Field 1

Regular member

Current Research Projects

Research interest

The research activities of Doctor Jean's team mainly focus on food safety in general and specifically on food virology. Their main interest is the development of molecular methods for the detection of food pathogens (viruses, bacteria, parasites). Studies on the persistence, the attachment and the transmission of viruses on surfaces and in food are underway. Work on strategies for the inactivation and pathogen control in food are also being carried out.

Expertise

Antimicrobiens concentration détection inactivation innocuité alimentaire méthodes moléculaires transmission virology épidémiologie

Université Laval

Département des sciences des aliments et de nutrition
Pavillon Paul-Comtois, bureau 1401
2425, rue de l'Agriculture
Université Laval
Québec (Québec) G1V 0A6
418-656-2131 extension : 413849
Fax : 418-656-3353
julie.jean@fsaa.ulaval.ca

Laboratory

Food Virology Laboratory

Others links

Detection of microorganisms in food. Doctor Jean's team developed real-time detection methods for enteric viruses some of which were transfered to government laboratories. 

Building of a viral collection. This collection is composed of several isolates of human noroviruses from various Canadian provinces and of enteric virus.

Persistence of noroviruses. Doctor Jean's team demonstrated that noroviruses are able to persist for more than seven days in refrigerated food and for more than 56 days on inert surfaces.

Inactivation of pathogen. Various technologies are studied for the potential to inactivate microorganisms in food. 

  • Morales-Rayas, R. et Jean, J. (2011) Overview of viral persistence on food surfaces. Curr Top Virol.  9:1-16
  • Jean, J., Morales-Rayas, R., Anoman, M.-N., Lamhoujeb, S. (2011) Inactivation of hepatitis A virus and norovirus surrogate in suspension and on food contact surfaces using pulsed UV light. Food Microbiol. 28:568-72 
  • Girard, M., Ngazoa, S.E., Mattison, K., Jean, J. (2010) Attachment of noroviruses to stainless steel and their inactivation using household disinfectants. J. Food Prot. 73:400-4
  • Lamhoujeb, S., Fliss, I. Ngazoa, S., Jean, J. (2009) Molecular study of persistence of infectious human norovirus on food-contact surfaces. Food Environ Virol. 1:51-6
  • Lamhoujeb, S., Fliss, I., Ngazoa, S., Jean, J. (2008) Evaluation of the persistence of infectious human noroviruses on food surfaces by using real-time nucleic acid sequence-based amplification. Appl Environ Microbiol.74:3349-55
Academic and professional training
  • Postdoctorate, Food Virology, North Carolina State University, USA, 2003
  • Postdoctorate, Food Virology, ACIA, 2002
  • Ph.D., Food science, Université Laval, 2002
  • M.Sc., Food science, Université Laval, 1998
  • B.Sc., Food science, Université Laval, 1997