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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:



Watch this on-demand webinar to gain an understanding of the requirements of CA Bill AB 899, learn how to navigate testing, and hear some answers to commonly asked questions. Original airdate May 30, 2024.


Stay informed on FDA recommendations for florfenicol use in aquaculture medicated feed. Explore our blog for the latest updates.


In this on-demand webinar we'll provide you with the tools and knowledge you need to navigate Amazon's Dietary Supplements Policy. Original airdate April 24, 2024.


In a recent webinar, Understanding PFAS in the Food Industry: Regulations, Testing Methods, and Safety Measures, Lukas Vaclavik, Eurofins Senior Staff Scientist, discussed per- and poly-fluoroalkyl substances (PFAS) in the food industry. After the webinar there was a Q&A, this is a summary of the discussion.


How does Prop 65 relate to dietary supplements? How do I test for heavy metals in dietary supplements to ensure compliance with Prop 65? Is Prop 65 specific to California? Get the answers to these questions and more!


PFAS limits and allowances in food contact materials, food products, and the environment are increasing. The FDA banned some PFAS compounds and has strict regulations on others. This flyer provides an overview of PFAS regulationsand how Eurofins can support your PFAS monitoring programs.


In this webinar Jamie Willems, Ph.D. and Lily Zehfus, M.Sc. discuss common causes of off-odor, off-flavor, and flavor scalping issues as well as GC-MS techniques for troubleshooting. Original airdate September 12, 2023.


Eurofins Central Analytical Laboratories (CAL) offers unrivaled expertise and an ISO 17025:2017 accreditation for all aspects of tea testing, including dried and fresh tea analysis, brewed service testing, and pesticide analysis. This flyer provides an overview of ECAL's tea offerings and the benefits of testing with Eurofins.


To support compliance with state regulations, Eurofins SF Analytical now offers a validated GC-MSMS method for the analysis of 1,4-dioxane with a reporting limit of 1 ppm. The method has been validated for use in solids, surfactant-containing solids, liquids, surfactant-containing liquids, solvent-based liquids, and oil-based liquids.


Join Eurofins Senior Staff Scientist, Lukas Vaclavik, for a discussion about per- and poly-fluoroalkyl substances (PFAS) in the food industry. Original airdate July 19, 2023.


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