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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:



Candies can now give you more than a sugar rush. Functional chocolates also have vitamins, minerals, and botanicals and with that means the need for suitable validated methods to verify claims. Eurofins is your partner is all challenging vitamin, mineral, and botanical testing in finished products and raw materials.


Food and supplement testing has been a necessary part of the safe supply chain which means so have the chemicals that go along with this and until today, there have been very few options that positively affect the environment. Supercritical Fluid Extraction with Supercritical Fluid Chromatography now offers an environmentally safer method that is also faster, as sensitive and as selective as your current methods. We present an alternative way to extract and measure vitamins.


The demand for mushroom supplements is skyrocketing! Learn more about popular mushroom varieties added to dietary supplements and the importance of lab testing for mushroom-based products and supplements.


Learn about the most common food pathogens and their impact in food handling and production. Testing your products can help manage risk of contamination from pathogens. Partner with Eurofins for all of your food safety testing needs.


NSF Certified for Sport and Informed Sports Certification Program both certify supplements as free of banned substances and other harmful components. Learn which is right for you.


In this blog article Jeff Stassi discusses the importance of designing a meaningful, comprehensive testing program for dietary supplements.


How can FT-IR be used for identifying foreign material in my product? David Riggs, President of Eurofins SF Analytical discusses this topic in this short video. Eurofins publishes our Ask an Expert Series weekly on our social media platforms.


The dietary supplement industry has become an increasingly regulated industry since the introduction of the dietary supplement GMPs in 2007. There is still to this day an industry confusion as to the requirements needed to comply with the dietary supplement GMP requirement to use a scientifically valid method. So does this mean the method must be validated?


How do you determine the identity of a unknown material I found in my product? Patricia Quinn from Eurofins SF Analytical in New Berlin, WI discusses this topic in this short video. Eurofins publishes our Ask an Expert Series weekly on our social media platforms.


Rapid Analysis of In-Process Fish Oil by Quality Trait Analysis (QTA) Infrared Spectroscopy


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