Prevalence and Counts of Salmonella and Enterohemorrhagic Escherichia coli in Raw, Shelled Runner Peanuts
2013
Three major outbreaks of salmonellosis linked to consumption of peanut butter during the last 6 years have underscored the need to investigate the potential sources of Salmonella contamination in the production process flow. We conducted a study to determine the prevalence and levels of Salmonella in raw peanuts. Composite samples (1,500 g, n = 8) of raw, shelled runner peanuts representing the crop years 2009, 2010, and 2011 were drawn from 10,162 retained 22-kg lot samples of raw peanuts that were negative for aflatoxin. Subsamples (350 g) were analyzed for the presence of Salmonella and enterohemorrhagic Escherichia coli. Salmonella was found in 68 (0.67%) of 10,162 samples. The highest prevalence rate (P 0.05) in the prevalence by region (Eastern versus Western). Salmonella ...
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