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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:



Discover how SDS-PAGE, a powerful protein analysis method, supports ingredient quality, transparency, and innovation in the food industry—from meat and dairy to plant-based products.


Discover why CFIA mandates 1500g lettuce testing for romaine imports from U.S. regions, how larger sample sizes improve detection of E. coli O157:H7, and the differences between pooling subsamples and direct 1500g testing methods. Learn key compliance, validation, and risk management considerations for growers, shippers, and buyers to ensure food safety and maintain market access.


With growing scrutiny from lawmakers and public health advocates, the once-standard GRAS (Generally Recognized as Safe) process may be on the verge of a major overhaul. In this blog, we break down what GRAS really means, why the self-affirmed process has sparked concern, and how the proposed legislation could redefine the future of ingredient approval in the U.S. food system.


Long before the MAHA Report hits the public in May 2025, lawmakers across the country aren’t waiting around. At both the state and federal levels, a wave of action is already underway driven by rare bipartisan agreement on one urgent issue: cleaning up the food supply chain. With a spotlight on protecting younger populations, the momentum is unmistakable.


In May, the Trump Administration released the Make Our Children Healthy Again report—commonly referred to as the MAHA Report. As a new conversation unfolds, let Eurofins help you dive into its implications for the food industry through a series of weekly posts. While the report spans a broad range of topics, our lens will remain focused on the food, beverage, and consumer goods sectors—where we continue to support companies navigating change and driving innovation. Keep reading to find out more on MAHA Report.


In the world of dietary supplements, where natural ingredients are marketed for health and wellness, the quality and identity of botanicals are non-negotiable. Consumers rely on accurate labeling, consistent formulation, and, most importantly, safe and authentic ingredients. Continue reading to learn more about ensuring safety in botanical supplement products.


Phospholipids may be small molecules, but their impact is immense. By keeping them active and abundant in infant formula, we're taking one step closer to replicating the remarkable composition of human milk—and nurturing healthy development in every bottle. Click the link to learn how.


When you're dealing with a complex matrix, the real question isn’t “Can it be tested?”—it's “What are you hoping to uncover?” Many things can be tested, but the answers depend on asking the right questions. Learn more about testing complex botanical matrices by clicking the link.


Creating shelf-stable nutritional bars and other natural food products is about understanding the science behind food preservation, taste and appearance. One of the most critical factors in the formulation of long-lasting, safe and appealing products is water activity. Water activity plays a major role in maintaining texture, reducing the rate of fats oxidation preventing spoilage and ensuring safety from microbial growth. Keep reading to learn what is being done to create a longer shelf life.


The use of real HMOs in infant formula is accelerating, driven by science, innovation, and a commitment to nourishing infants in the healthiest way possible. Enhanced testing methods are unlocking new capabilities—bringing us closer than ever to replicating the complexity and power of human milk. Click the link to learn more about HMOs.


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