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Douglas L. Marshall

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Douglas L. Marshall, PhD, CFS

Douglas L. Marshall, PhD, CFS

Chief Scientific Officer

Dr. Marshall is Chief Scientific Officer with Eurofins Microbiology Laboratories, Inc., a division of the global life sciences company Eurofins Scientific.  He is co-founder and Director of the Food Safety Institute, LLC, an integrated consulting and analytical services company affiliated with the Eurofins network of companies.  He is Technical Director for the Refrigerated Foods Association and Microbiology Task Force Chair for the American Spice Trade Association.  His former positions include the following:

  • Associate Dean and Professor of Public Health, College of Natural and Health Sciences, University of Northern Colorado
  • Adjunct Professor with the Colorado School of Public Health and Colorado State University
  • Professor of Food Science, Nutrition, and Health Promotion at Mississippi State University
  • Assistant Professor of Food Science at Louisiana State University
  • Contributing Editor for the peer-reviewed scientific journal Food Microbiology
  • Four consecutive terms on the editorial board of the Journal of Food Protection

He is a frequent volunteer and consultant to trade associations, 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. With over 250 publications, over 300 invited presentations, and over 100 workshops delivered, his scientific research and outreach interests focus on improving the microbiological quality and safety of foods, with emphasis on meat, poultry, seafoods, and produce.  Among these was the completion of the 4 volume Handbook of Food Science, Technology, and Engineering, which he Co-Edited.  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, the International Association for Food Protection Educator and Harold Barnum Industry Awards.  He is a Fellow and former member of the Board of Directors of the Institute of Food Technologists, inaugural Chair of the International Food Science Certification Commission, and former member of the Board of Directors of the American Spice Trade Association. 

On a personal note, early in his career he served as a deck hand on an Alaskan fishing vessel (well before Deadliest Catch) and prefers to spend his free time lost on a trail in the Colorado Rocky Mountains.

Below are resources from Douglas:



This poster discusses research with the purpose to validate enrichment concentration as a method for shortening enrichment times to 12 hours for Listeria testing in leafy greens.


This poster discusses research with the purpose to develop a molecular method that detects indicators of enteric pathogen contamination and requires less than six hours of enrichment.


This poster discusses research with the purpose to determine the main cause(s) of presumptive Listeria spp. environmental samples that fail to confirm by culture.


This poster discusses research with the purpose to evaluate an automated highly multiplexed PCR system for the characterization and molecular confirmation of presumptive environmental sample enrichments in comparison to cultural confirmation.


Explore Eurofins Microbiology events and presentations that were featured at the 2024 annual meeting of the International Association of Food Protection (IAFP) in Long Beach, CA. The focus of the event was Eurofins science and its scientists who once again demonstrated their technical dominance of the food industry through a variety of poster presentations and technical symposia, as well as leadership of professional development groups.
Keywords: News Microbiology


Eurofins Microbiology Laboratories, Inc. of Milwaukee, WI is proud to announce the development of a new test method for acetic acid bacteria enumeration, intended for utilization by clients in the beverage industry.


Eurofins Microbiology Laboratories, Inc. is pleased to announce the promotion of James Darney to Business Unit Manager for the Eurofins Fresno Microbiology Laboratory.
Keywords: News Microbiology


This webinar covers food safety product categories and the impact of ingredients required to improve microbial stability on product acceptance. Original airdate May 21, 2024.


This webinar focuses on the principles and theory of food spoilage, within the context of how these concepts can help you better understand what to do when things go wrong (spoil) and design a product in a way to prevent spoilage in the first place. Original airdate May 8, 2024.


Eurofins Microbiology Laboratories, Inc. is pleased to announce the promotion of Cortney Miller to Business Unit Manager for the Eurofins Des Moines Microbiology Laboratory.
Keywords: News Microbiology


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