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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 also 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.  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
  • 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 and over 180 invited presentations, his scientific research and outreach interests focus on improving the microbiological quality and safety of foods.  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, former 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:



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


Eurofins’ laboratories are frequently asked questions about microbial indicator testing. This whitepaper will attempt to answer the most common questions and give an overview of the uses and benefits of testing for microbial indicators.


In this webinar, Dr. Douglas Marshall, Chief Scientific Officer of Eurofins Microbiology, discusses the best practices to help resolve product and environmental contamination events with a focus on effective root cause analysis and deployment of corrective actions as well as consideration of successful long-term preventive actions. Original Air Date May 24, 2023


This Environmental Monitoring Guide focuses on why to have an environmental monitoring program (EMP), where and how to perform environmental monitoring with the Zone concept, evaluation of results and root cause analysis when out-of-spec environmental test results are found, and corrective actions to take based on root cause analysis.


Do you need microbial testing for your food products? Learn the importance of microbial challenge testing to ensure food safety and quality.


This poster discusses research focused on the co-enrichment detection of Salmonella and STEC on produce matrices.


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