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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:



As popularity of dietary supplements continues to grow, recent challenges in supply chain have shown an emergent growth in adulteration. Find out more on what the problem with adulteration is, and how is it being addressed.


Validated methods are essential to reliable botanical testing. Method validation and development ensures analytical approaches are applicable to specific ingredients and provide accurate results. The process of method development and validation are outlined.


Botanical reference materials play a critical role in herbal product testing. Learn about the importance of botanical reference materials, and how choosing a lab with a large reference material library impacts analytical outputs.


In this informative webinar, Eurofins SF Analytical scientists explain the considerations your company should factor in to mitigate risk and comply with applicable regulations including new analytical techniques to meet the ever-changing compendia (USP, EP, ACS, FCC/NF, JECFA, etc.)


Learn more about the similarities and differences between the terms: fraud, defense, authenticity, and adulteration when it comes to foods, ingredients, and supplements.


New options for sweetening low-sugar foods have entered the market. Testing of sweetener ingredients and the finished product is key.


Dietary supplement using immune-based ingredients have significantly increased over the last few years. Learn more on which trendy ingredients are being used and how to comply with the FDA guidelines on dietary supplements and functional food products.


Eurofins Food Chemistry Testing (Madison, WI) is excited to announce it is the first testing laboratory certified by the Colorado Department of Public Health and Environment (CDPHE) to conduct hemp compliance testing for manufactured industrial hemp products for all seven of the CDPHE certification categories.


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.


Eurofins is proud to announce that our method for determining potency in hemp has been approved and validated by the AOAC.


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