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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:



How automated and rapid is your testing process? Review our checklist to see if your operation’s processes make you a good fit for automation through managed NIR.


When it comes to Eurofins grain inspections versus official agencies’ inspections, how are inspectors trained and qualified? What type of certificate will I receive? How fast is certificate turnaround? Learn the answers to these and more in our FAQ guide.


Protein analysis is typically based on a Nitrogen analysis and assumed factors to calculate protein. Since proteins are not the only source of Nitrogen, Protein analysis can be falsely inflated by a variety of ingredients and other food components. Check out this infographic to learn more about non-protein nitrogen.


Photostability testing is crucial for ensuring the safety, efficacy, and quality of products. While there are not specific requirements, the FDA makes it clear it is recommended for all products susceptible to light. Check out our infographic about the importance of photostability testing in OTC products.


Did you know the history of Eurofins Food Chemistry Testing, Inc. in Madison, Wisconsin dates back to 1929? Check out our infographic to learn more about the rich history of the laboratory. 


Fast, accurate, and always on time—our 24-hour rail inspection network delivers trusted, on-site results without delays or uncertainty. Whether routine or urgent, we ensure every inspection is fair, reliable, and efficient. Check out our infographic on how we are here for you.


Product certification plays a vital role in minimizing the potential risks of adulteration, contamination, and other quality issues in your product. This infographic outlines the steps to earning the Eurofins Assurance Mark for your dietary supplement, ingredient, or food product.


In an industry rooted in nature but constantly evolving with science, botanical supplements are experiencing a quiet revolution. Innovation isn't just about discovering exotic new plants—it's about precision, purpose, and progress at every step of product development. Check out our infographic on your botanical product's steps, from seed to shelf.


Because of the potential consumer health and economic risks associated with mycotoxin contamination, it’s critical to fully understand the food production and safety challenges presented by mycotoxins. Our infographic answers the following frequently asked questions to provide insight into addressing these concerns.


Iodine is an essential trace element found in many food sources as well as the environment. AAFCO recognizes iodine as an essential nutrient for both dogs and cats at differing, species specific levels. This infographic explains explores considerations for iodine in pet food and reasons to test for it.


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