Byeonghwa Jeon, PhD

Associate Professor, Division of Environmental Health Sciences

Byeonghwa Jeon

Contact Info

Office Phone 612-626-3669

Office Address:
205F Veterinary Science Building
1971 Commonwealth ave.
St. Paul, MN 55108

Mailing Address:
Envrn Health Sciences (SPH)
MMC 807 Mayo
420 Delaware St SE
Minneapolis MN 55455

PhD, Veterinary Medical Sciences, University of Tokyo, Japan

MSc, Food Science and Biotechnology, Lund University, Sweden

BSc, Food Science and Technology, Seoul National University, Korea

Post-Doctorate, Veterinary Microbiology and Preventive Medicine, Iowa State University


I address important public health issues in food safety and antibiotic resistance. Using my multidisciplinary academic training and research experience in food science (food microbiology), biotechnology, veterinary medical sciences (veterinary microbiology), molecular microbiology, and public health (infectious diseases). I am conducting both basic and applied research from the perspective of One Health that considers humans, animals, food, and the environment together.


Food safety, antibiotic resistance, molecular microbiology, biofilm formation, stress tolerance in foodborne pathogens.


Research Summary/Interests

Foodborne pathogenic bacteria usually originate from animals and are transmitted to humans through contaminated food and they encounter a series of environmental stresses while passing through various procedures in food production, processing, and consumption. Only those that overcome the stress conditions can initiate infection in humans.Our better understanding of how foodborne pathogens overcome and survive stress can help develop novel methods to control and prevent the transmission of foodborne pathogens to humans. Research topics regarding this include, but not limited to:

  • Molecular mechanisms for stress tolerance in Campylobacter
  • Biofilm formation in foodborne pathogens

Antibiotic resistance is a serious public health threat. If we cannot control the current rates of development and spread of antibiotic resistance, about 10 million deaths will be caused by antibiotic resistance annually by 2050. Similar to the transmission of foodborne pathogens, antibiotic resistance is also frequently transmitted from animals to humans by food consumption; thus, antibiotic resistance is an important food safety issue. My research focuses on understanding the mechanisms of antibiotic resistance and on developing alternative approaches to control this resistance. I work on research projects regarding:

  • Antibiotic resistance in Campylobacter
  • Plasmid-mediated antibiotic resistance, such as plasmid-mediated quinolone resistance (PMQR) and extended-spectrum beta-lactamase (ESBL) in Salmonella and E. coli
  • Synergistic antimicrobial adjuvants to control antibiotic-resistant pathogens
  • Bacteriophages to inhibit antibiotic-resistant E. coli


Oh, E., Andrews, K.J., McMullen, L.M., and Jeon, B., (2019) Tolerance to stress conditions associated with food safety in Campylobacter jejuni strains isolated from retail raw chicken, Scientific Reports 9:11915.

Kim, J., Shin, H, Park, H., Jung, H.,Kim, J., Cho, S., Ryu, S., and Jeon, B., (2019) Microbiota analysis for the optimization of Campylobacter isolation from chicken carcasses using selective media, Frontiers in Microbiology 10:1381

Park, H., Kim, J., Ryu, S., and Jeon, B., (2019) The predominance of blaCTX-M-65 and blaCTX-M-55 in extended-spectrum ?-lactamase (ESBL)-producing Escherichia coli from retail raw chicken in South Korea. Journal of Global Antimicrobial Resistance 17:216-220.

Oh, E., Chui, L., Bae, J., Li, V., Ma, A., Mutschall, S.K., Taboada, E.N., McMullen, L.M., and Jeon, B. (2018) Frequent implication of multistress-tolerant Campylobacter jejuni in human infections, Emerging Infectious Diseases 24:1037-1044.

Kim, J-C., Chui, L., Wang, Y., Shen, J., and Jeon, B. (2016) Expansion of Shiga toxin-producing Escherichia coli by bovine antibiotic growth promoters. Emerging Infectious Diseases 22:802-809.

Kim, J-C. and Jeon, B. (2016) Novel adjuvant strategy to potentiate bacitracin against multidrug-resistant methicillin-resistant Staphylococcus aureus (MRSA). Journal of Antimicrobial Chemotherapy 71:1260-1263.