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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:



Switching oil sources, or developing a new product with an alternative oil, requires more than a label change. It demands a holistic view of how the oil behaves in your product, how it interacts with other ingredients, and how it holds up over time. Click to learn about the key considerations.


Protein analysis is typically based on a Nitrogen analysis and assumed factors to calculate protein. Since proteins are not the only source of Nitrogen, Protein analysis can be falsely inflated by a variety of ingredients and other food components. Check out this infographic to learn more about non-protein nitrogen.


The bar aisle is brimming with possibilities—and today’s consumers are more curious and discerning than ever. As expectations rise around flavor, texture, and ingredient transparency, brands have a unique chance to reimagine what a bar can be. This webinar explores the dynamic evolution of the bar category, especially protein bars, and reveals how thoughtful innovation can help your brand rise above the noise and truly connect with consumers. Originally Aired on November 5, 2025


As global demand for animal protein continues to rise, producers, distributors, and suppliers face increasing pressure to meet complex veterinary drug compliance standards. This webinar offers a practical roadmap for navigating the regulatory landscape governing the export of animal protein, with a focus on FDA and USDA requirements, international certification processes, and emerging trade dynamics.


The FDA and USDA are seeking public input to define ultra-processed foods (UPFs), aiming to shape future labeling, regulation, and consumer awareness. Learn how this RFI could impact food policy and public health.


Grain trading, especially in commodities like soybeans, relies on accurate lab analysis to determine quality and compliance. But when discrepancies arise between a supplier and a buyer, these disagreements can stall deals and generate costly conflict. That’s where referee testing steps in. Click to read about this crucial process that maintains trust and transparency. 


Discover how dietary supplement companies can proactively mitigate risk—from sourcing to packaging—to protect product integrity, brand reputation, and consumer trust.


With the overall market movement towards "better for you" foods, many companies have already started adding new or reformulated products to their portfolios. Click to read our blog about the market action being taken and strategies companies have deployed to appeal to the Make America Healthy Again movement.


Did you know the history of Eurofins Food Chemistry Testing, Inc. in Madison, Wisconsin dates back to 1929? Check out our infographic to learn more about the rich history of the laboratory. 


Discover expert insights into navigating Out-of-Specification (OOS) results and CAPA investigations. Learn key steps and strategies our technical team uses to resolve unexpected analytical outcomes effectively.


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