Heat inactivation of Mycobacterium paratuberculosis in raw milk: are current pasteurization conditions effective?

Author:

Stabel J R1,Steadham E M1,Bolin C A1

Affiliation:

1. National Animal Disease Center, U.S. Department of Agriculture, Ames, Iowa 50010, USA. jstabel@nadc.ars.usda.gov

Abstract

Currently, it is not known whether commercial pasteurization effectively kills Mycobacterium paratuberculosis in contaminated raw milk. Results from holder test tube experiments indicated that a residual population of viable bacteria remained after treatment at 65, 72, 74, or 76 degrees C for 0 to 30 min. Use of a laboratory-scale pasteurizer unit demonstrated that treatment of raw milk at 72 degrees C for 15 s effectively killed all M. paratuberculosis.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference13 articles.

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4. Characteristics of an unclassified mycobacterium species isolated from patients with Crohn's disease;Chiodini R. J.;J. Clin. Microbiol.,1984

5. Comparison of heat resistance of Listeria monocytogenes in milk as determined by two methods;Donnelly C. W.;J. Food Prot.,1987

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