Prevalence and Concentration of Salmonella on Raw Shelled Peanuts in the United States
Recalls and/or outbreaks associated with Salmonella contamination in peanut-containing products were reported over the past several years. There are very limited data available on the prevalence and concentration of Salmonella on raw shelled peanuts in the United States.
The objectives of this study were to estimate the prevalence of Salmonella on raw shelled peanuts in the United States and to estimate that concentration of Salmonella. Samples of Runner- and Virginia-type raw shelled peanuts from the 2008, 2009, and 2010 crop years were proportionately
sampled from each growing region, based on 2007 production volume. Of 944 raw shelled peanut samples (375 g each), 22 (2.33%) were positive for Salmonella by the VIDAS Salmonella assay. Salmonella serovars identified in this study included Agona, Anatum, Braenderup, Dessau,
Hartford, Meleagridis, Muenchen, Rodepoort, Tennessee, and Tornow. The concentration levels of Salmonella in positive samples, as determined by a most-probable-number assay, were <0.03 to 2.4 MPN/g. These data will be useful when designing and validating processes for the reduction
or elimination of Salmonella in peanuts and/or peanut-containing products.
Document Type: Research Article
American Peanut Council, 1500 King Street, Suite 301, Alexandria, Virginia 22314, USA. firstname.lastname@example.org
Mars Chocolate North America, 800 High Street, Hackettstown, New Jersey 07840, USA
Land O'Lakes, 4001 Lexington Avenue North, Arden Hills, Minnesota 55112, USA
The Hershey Company, 1025 Reese Avenue, Hershey, Pennsylvania 17033, USA
Kraft Foods, 200 Deforest Avenue, East Hanover, New Jersey 07936, USA
Publication date: April 1, 2013
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