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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 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.


Join our team of presenters at Eurofins Microbiology Laboratories for an in-depth webinar all about rapid microbiological methods. They presented on the range of methods available, as well as the technologies behind them, while also exploring factors that affect their performance.  Learn what to consider when selecting a rapid method such as sensitivity, validation status, and speed.  Practical considerations around the method applications will be addressed.


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.


Whole-Genome Sequencing aids in tracking foodborne illnesses and drug resistance in food pathogens. Read on to learn how WGS ensures food safety and quality.


Do your products need a nutritional label?  Do you ever find yourself facing confusion around nutritional labeling requirements?  Let us help with those questions!  Listen to our informational webinar presented by Mollie Hammerschmidt, Analytical Services Manager, Eurofins Nutrition Analysis Center. She answers the most common questions and pain points we receive, from customers just like you, with nutrition labeling requests.


Testing food and ingredients is a proactive step you can take to analyze and verify the quality and safety of your products.  There are many considerations you should know about using test kits and instruments in your manufacturing plant. This article provides advice and considerations when buying in-house test kits and instruments.


Eurofins QTA offers a unique service by testing using infrared lights. Learn about what infrared is, how it works, how QTA differentiates from other providers, How to convert to infrared testing, and how to get started with QTA.


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.


This article discusses the main labeling requirements for food allergens in the US as well as the recent addition of sesame to monitored allergen list for foods and supplements in the US. Learn more regarding upcoming changes and allergen testing.


Shiga toxin-producing E. coli (STEC), in particular, is a group of E. coli strains most associated with foodborne outbreaks. As food producers, you have the responsibility to ensure your consumers don't become a statistic. Read on to learn more about STEC and other food pathogens and how to eliminate them from your products.


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