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Research Project: Monitoring and Molecular Characterization of Antimicrobial Resistance in Foodborne Bacteria

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Title: Microbiome-informed food safety and quality: Longitudinal consistency and cross-sectional distinctiveness of retail chicken breast microbiomes

item LI, SHAOTING - University Of Georgia
item MANN, DAVID - University Of Georgia
item ZHANG, SHAOTANG - University Of Georgia
item QI, YAN - University Of Georgia
item Meinersmann, Richard - Rick
item DENG, XIANGYU - University Of Georgia

Submitted to: International Association for Food Protection Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: 10/8/2020
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Microorganisms and their communities on foods are important determinants and indicators of food safety and quality. Despite growing interests in studying food and food-related microbiomes, how effective and practical it is to glean various food safety and quality information from food commodity microbiomes remains under investigated. Microbiomes of retail chicken breast from 4 processing establishments in 3 major U.S. broiler production states displayed longitudinal consistency over 7 months and cross-sectional distinctiveness associated with individual processing environments. Packaging type and processing environment but not antibiotic usage and seasonality affected composition and diversity of the microbiomes. Low abundances of antimicrobial resistance genes were found on chicken breasts, and no significant resistome difference was observed between antibiotic-free and conventional products. Benchmarked by culture enrichment, shotgun metagenomics sequencing delivered sensitive and specific detection of Salmonella enterica from chicken breasts.