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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 how a leading plant-based food company partnered with Eurofins DQCI to implement a precise calibration strategy, ensuring consistent and accurate protein testing across multiple production sites.


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.


Eurofins Food Chemistry Testing, Madison and Eurofins Assurance are pleased to announce the launch of product certification designed to safeguard the quality of dietary supplements, ingredients and food. Brands, retailers, and facilities in the dietary supplements industry can leverage these new schemes to demonstrate their commitment to regulatory compliance and quality. Click to learn more about this new certification.


Product certification plays a vital role in minimizing the potential risks of adulteration, contamination, and other quality issues in your product. This infographic outlines the steps to earning the Eurofins Assurance Mark for your dietary supplement, ingredient, or food product.


With the release of the Make America Healthy Again (MAHA) report, the food and supplement industries are facing a pivotal moment. Join two of our leading experts as they unpack the report’s findings and explore what they could mean for consumer-packaged goods (CPG) companies. From reformulation strategies to enhanced ingredient scrutiny, this session will help industry professionals prepare for a wave of potential changes. Originally Recorded on August 21, 2025


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.


The demand for speed in food production and distribution continues to increase, driven by consumer expectations for freshness, short product shelf lives, and regulatory compliance requirements. In this environment, rapid pathogen detection methods have become essential tools for timely decision-making and effective food safety management. This webinar will provide a technical overview of commercially available rapid methods for detecting key foodborne pathogens, including Salmonella, Listeria spp., and L. monocytogenes. Originally Recorded on August 20, 2025.


In this webinar, we cover our approach to custom method development with a focus on chromatographic techniques, such as GC-FID, GC-MS(MS), HPLC, UPLC, and HPLC-MS(MS). From the initial steps of deciding on an approach, to actual lab development and method validation for routine or regulatory use will be explained using actual case studies and examples. Originally Recorded on August 12, 2025


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