Nature versus Nurture: Assessing the Impact of Strain Diversity and Pregrowth Conditions on Salmonella enterica, Escherichia coli, and Listeria Species Growth and Survival on Selected Produce Items

Author:

Harrand Anna Sophia1ORCID,Guariglia-Oropeza Veronica1,Skeens Jordan1,Kent David2,Wiedmann Martin1

Affiliation:

1. Department of Food Science, Cornell University, Ithaca, New York, USA

2. Department of Statistical Science, Cornell University, Ithaca, New York, USA

Abstract

Our findings suggest that inclusion of multiple pregrowth conditions in inoculation studies can best capture the range of growth and survival patterns expected for Salmonella enterica and Escherichia coli present on produce. This is particularly important for fresh and fresh-cut produce, where stress conditions encountered by pathogens prior to contamination can vary widely, making selection of a typical pregrowth condition virtually impossible.

Funder

U.S. Department of Agriculture

Center for Produce Safety

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference64 articles.

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2. U.S. Food and Drug Administration. 2017. Draft guidance for industry: control of Listeria monocytogenes in ready-to-eat foods. U.S. Food and Drug Administration Rockville MD. https://www.fda.gov/regulatory-information/search-fda-guidance-documents/draft-guidance-industry-control-listeria-monocytogenes-ready-eat-foods.

3. Parameters for Determining Inoculated Pack/Challenge Study Protocols†,‡

4. Salt Stress Phenotypes inListeria monocytogenesVary by Genetic Lineage and Temperature

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