research 2

Our research focuses on using pre- and post-harvest interventions to control and/or eliminate MDR pathogens from our food supply. As a pre-harvest strategy, we investigate new antimicrobials (reduced antibiotic/post-antibiotic phase out view) to eliminate these foodborne bacteria of zoonotic importance in poultry and strive towards translating our research activities to developing innovative approaches or refining existing methods. We also investigate post-harvest interventions, with a focus on phytochemicals and the emerging, to improve the microbiological safety of poultry meat and eggs. Engaging our team in this dynamic process, we plan to improve human food safety from the ‘One Health’ perspective.

We believe that our contribution is important and valuable to the existing and emerging body of knowledge to make our food supply safer. We partner with the industry, researchers at the University of Minnesota and other land-grant universities and federal researchers in this effort. We focus on four broad objectives to achieve our food safety mission.

  • Interventional food safety models targeting multidrug-resistant (MDR) bacteria.
  • Alternatives to antibiotics (A2A) to alleviate MDR pathogen-induced gut dysbiosis.
  • Understanding the alleviation mechanisms using omics technologies for translation.
  • Improving postharvest microbiological safety of poultry meat and eggs.

For a complete list of Dr. Johny’s publications please use Google Scholar Link. Any questions on papers can be directed to; Please visit his profile at the UMN experts webpage here We thank our supporting / funding agencies!

Selected Research:

  1. Effect of Lemongrass Essential Oil on the Survival of Multidrug-Resistant Salmonella enterica serovar Heidelberg in Contaminated Poultry Drinking Water (Read here)
  2. Salmonella in Poultry Meat Production (Book Chapter) (Read here)
  3. Antibiotic-Resistant Salmonella in the Food Supply and the Potential Role of Antibiotic Alternatives for Control (Review) (Read here)
  4. Effect of Various Inoculum Levels of Multidrug-Resistant Salmonella enterica Serovar Heidelberg (2011 Ground Turkey Outbreak Isolate) on Cecal Colonization, Dissemination to Internal Organs, and Deposition in Skeletal Muscles of Commercial Turkeys after Experimental Oral Challenge (Read here)
  5. Characterizing the Antimicrobial Function of a Dairy-Originated Probiotic, Propionibacterium freudenreichii, Against Multidrug-Resistant Salmonella enterica Serovar Heidelberg in Turkey Poults (Read here)
  6. Food Grade Pimenta Leaf Essential Oil Reduces the Attachment of Salmonella enterica Heidelberg (2011 Ground Turkey Outbreak Isolate) on to Turkey Skin (Read here)
  7. Effect of Turkey-Derived Beneficial Bacteria Lactobacillus salivarius and Lactobacillus ingluviei on a Multidrug-Resistant Salmonella Heidelberg Strain in Turkey Poults (Read here)
  8. Reduction of Multidrug-Resistant Salmonella enterica serovar Heidelberg Using a Dairy-Originated Probiotic Bacterium, Propionibacterium freudenreichii freudenreichii B3523, in Growing Turkeys (Read here)
  9. Gene Expression Response of Salmonella enterica Serotype Enteritidis Phage Type 8 to Subinhibitory Concentrations of the Plant-Derived Compounds Trans-Cinnamaldehyde and Eugenol (Read here)
  10. Effect of Propionibacterium freudenreichii on Salmonella multiplication, motility, and association with avian epithelial cells (Read here)
  11. Preharvest Food Safety—Potential Use of Plant-Derived Compounds in Layer Chickens (Book Chapter) (Read here) 2019-2021