Dr. Marshall is Chief Scientific Officer, Microbiology with the U.S. Food Division of the global life sciences company Eurofins Scientific Inc. His former positions include Associate Dean and Professor of Public Health, College of Natural and Health Sciences, University of Northern Colorado, cofounder and Director of the Food Safety Institute, LLC, Contributing Editor for the peer-reviewed scientific journal Food Microbiology, and four consecutive terms on the editorial board of the Journal of Food Protection.
With over 200 publications, his professional activity is focused on improving the microbiological quality and safety of foods. He is a frequent consultant to NIH, WHO, FAO, USDA, and other government agencies and private companies. His research and expertise has been featured in popular press venues such as Consumer’s Reports, Fine Cooking, USA Today, Fitness, Health, Men’s Health, Chemtech, Nature Science Updates, and ASM Journal Highlights. He is a frequently invited speaker and a prolific book chapter writer. He recently completed co-editing the 4 volume Handbook of Food Science, Technology, and Engineering. He has been the recipient of a number of awards for his scholarly efforts including the Mississippi Chemical Corporation Award of Excellence for Outstanding Work and the International Association for Food Protection Educator Award. He is a Fellow of the Institute of Food Technologists, where he has served as chair of two divisions and two regional sections.