Picture of Eric A. Johnson

Eric A. Johnson

Professor of Bacteriology

Address: 1550 Linden Drive, Room 6303
Phone: (608) 263-7944
Lab Phone: (608) 263-9263
Email: eajohnso@wisc.edu
Overview · Lab · Publications

Start and Promotion Dates

  • Assistant Professor: 1985
  • Associate Professor: 1990
  • Full Professor: 1996


B. S. 1976 University of California, Davis
M. S. 1978 University of California, Davis
Sc. D. 1983 Massachusetts Institute of Technology
Postdoctoral Research: Harvard Medical School

Areas of Study

Clostridium botulinum and its toxins
food and industrial microbiology

Research Overview

Interspecies transfer of the gene coding for botulinum toxins.
Regulation of expression of botulinum toxins.
Purification, stabilization, and characterization of botulinum toxins.
Development of botulinum toxin as a pharmaceutical.
Behavior and control of Clostridium botulinum in foods.
Assessment of the safety of new food processing procedures, e.g., modified atmosphere packaging, on safety from botulism.
Characterization and application in foods of naturally occurring antimicrobials, including lactoperoxidase, lactoferrin, monoglycerides, polyacetylenes, lysozyme, and other lytic enzymes.
Behavior and control of Listeria monocytogenes in foods.
Control of pathogens in reduced fat cheeses.