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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:



Food fraud, also known as economically motivated adulteration, is widespread worldwide.  Food fraud involves deliberate and intentional substitution, addition, tampering or misrepresentation of food, food ingredients or food packaging, labeling, product information or false or misleading statements made about a product for economic gain.  Food fraud can adversely impact consumer health, product quality, and brand reputation.


As Minneola, a hybrid between grapefruit and mandarin, has become more popular it may be susceptible to fraud and/or adulteration. This poster shows the phenolic pattern of this fruit, in relation to other orange, grapefruit and mandarin fruits that may be used to identify its juice or juice concentrate.


Eurofins presents at AOAC 2020 Virtual Annual Meeting & Exposition. Adulteration to fruit juices has been a long-standing problem in food processing. While analytical tests exist to detect cheaper juices in more expensive ones, an ongoing problem arises when lime juice is blended with lemon juice. Due to their chemical similarities, this requires new in-depth methods.


Food fraud has been a topic that continues to be of high interest. Below are the top risks that should be considered when developing your food fraud plan.


During this webinar, Tim Lombardo of Eurofins Food Assurance discussed the differences between food security, food safety, food fraud, and food defense. He provided a short history of FSMA and reviewed regulations for food defense and intentional adulteration protection.




This poster describes some of the work Eurofins has conducted on procedures to help control the quality of agave syrups.


Curious what exactly food fraud entails? Take a look at food fraud practices with Eurofins. We are exploring the topic of food fraud and what exactly that terminology means.


The risks of food fraud are many, but with the right tools and partners, your brand can successfully complete a mitigation plan and audit.



https://www.eurofinsus.com/food-testing