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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:



One way to improve profitability is to reduce waste by not placing more of the valuable components in your products than is necessary. In the dairy industry, shrink may be seen when producing products with more protein and/or fat than may be required based on industry-determined minimum values.
Keywords: Blog Dairy


This blog explores botanical fraud, differences between fraud and adulteration, and the use of mitigation plans to prevent fraudulent ingredients and products. Learn about the common types of fraud and steps to take to ensure safe and accurately labeled products.


This informative blog post covers the basics of probiotic testing for new brands. Learn about federal regulations, formulation, and testing options, including plate counts and flow cytometry, surrounding the efficacy and safety of probiotic supplements. This article contains valuable information for anyone involved in probiotic manufacturing, formulation, or branding!


Ensure food safety of fresh produce to avoid a Cyclospora outbreak. Learn more about Cyclospora in commercial produce and how to detect and mitigate risk of contamination.


Learn how mushrooms can become contaminated with bacteria and what you can do to protect your consumers. Eurofins provides comprehensive food testing services.


Fresh produce undergoes several steps to reduce risk of pathogen contamination, but did you know that Nanobubble technology could be one of them? Nanobubbles are very small (70-120 nanometers) gas bubbles that exhibit interesting physical properties due to its size. It has been a relatively new field of research that could provide significant improvements to food production and water treatment.


The Food and Drug Administration (FDA) monitors drug manufacturers' compliance with its current Good Manufacturing Practice (cGMP) regulations in order to ensure the quality of drug products. These regulations are designed to assure products are safe for use and contain the ingredients, strengths, and efficacies of claims made by the product. Learn what tests your OTC products need to be compliant.


What is spectroscopy? What is the difference between NIR vs. Mid IR? What are the benefits of NIR vs traditional wet chemistry? The team at Eurofins QTA answers these questions and more in this edition of our Ask An Expert blog about infrared spectroscopy.


Gummy supplements continue to trend among consumers, but this matrix can be challenging to test. How does Eurofins address these challenges? Read about the answer from Jeff Stassi, Sr. Analytical Services Manager with Eurofins Food Chemistry Testing in Madison, WI.


Eurofins Craft Technologies recently became a gold member of the Algae Biomass Organization (ABO). Our team is excited to offer discounts and special rates to other ABO members. We answered some common questions about the ABO, membership benefits, and testing with Eurofins in this article.


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