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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:



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.


In this on-demand webinar, Eurofins Microbiology Laboratories has partnered with Rheonix to explore the challenges centering around recurring Listeria in an environment, and to offer real answers to your nagging Listeria questions and limited industry resources. Original airdate November 14, 2023.


Company X, a leading national supplier of prepared foods, was set with their environmental monitoring program. Their plan and testing protocols were effective and efficient in collecting samples and evaluating for the organisms of concern. The problem was that they had been unable to eliminate the Listeria or trace it back to a source, so they turned to Eurofins and Rheonix.


Managing food safety & quality in fruit & vegetable processing is challenging and extremely dynamic; variable supply chains, seasonal quality issues, minimal pathogen mitigations, and short shelf-life often leaves little time to make critical decisions.


Implementing an Effective Listeria Control Plan for Fresh Produce


What tools do you have in place to prevent cross-contact of allergens in your facility? Check out our helpful and comprehensive guide to understanding and implementing a successful food allergen environmental monitoring plan.


New Rapid Pathogen Testing Services. Eurofins Microbiology Laboratories, Inc. is pleased to share our new Enteric Pathogen Risk Indicator (EPRI™) Testing. This new service is a rapid approach to risk identification and management using fast genetic technology (PCR) with the benefits of an indicator test. In addition, we can screen for Salmonella and Shiga toxigenic E. coli at the same time in one assay.


Did you know the type of swab or sponge in your environmental monitoring program (EMP) is important in regards to the methods used for detection of pathogens? Camila Gadotti discusses this topic in this short video. Eurofins publishes our Ask an Expert Series weekly on our social media platforms.


Are ATP swabs adequate enough for monitoring environmental contamination in your facility? Our Chief Scientific Officer, Dr. Doug Marshall explains industry best practices and what might be the best approach. Eurofins publishes our Ask an Expert Series weekly on our social media platforms.


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