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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:



Our "Behind the Science" series looks at food testing from the perspective of the testers and industry experts who devote their careers to it. In this episode, Eurofins Chief Scientific Officer, Dr. Doug Marshall speaks with Senior Analytical Services Manager, Mollie Van Alst about "healthy" labeling claims. Originally recorded on April 23, 2025


Watch this webinar for a discussion on the background behind AAFCO’s recommended method and other commonly used methods, with a focus on which dietary fiber component each method quantifies, and scenarios where it is appropriate to use an alternate method. Original Air Date: April 16, 2025


When it comes to food safety and regulatory compliance, acidified foods stand out as a unique category that demands careful attention. These shelf-stable products, ranging from pickled vegetables to tangy condiments, rely on precise pH control and proper processing to ensure they remain safe and stable for consumers. In this webinar, we’ll simplify the complexities of acid and acidified foods, breaking down key factors regarding microbiological safety, stability, and regulatory compliance. 


In pets, as in humans, glucosamine (GlcN) has been used with chondroitin sulfate in nutraceuticals to support joint health and mobility. Historically, GlcN testing has been limited to pure materials and supplements. However, Eurofins Nutrition Analysis Center has recently developed a method for testing GlcN in a wide variety of matrices. Click to learn more.


Pet owners might turn to nutraceuticals that may support relief in some Osteoarthritis (OA) symptoms. One such nutraceutical is chondroitin sulfate. Explore new scientific developments happening at Eurofins in Des Moines, IA for quantifying chondroitin sulfate in complex matrices like pet food and treats.


Sugar reduction is a growing priority in product development as consumers seek to address concerns related to sugar consumption. Removing sugar from a formulation presents several challenges beyond just replacing its sweetness. This article walks through considerations that must be made for a successful sugar reduction strategy.


The goal of the FDA's proposed rule for Front-of-Package (FOP) nutrition labeling is to require easily noticeable and obvious nutrition information. Check out our infographic about the FDA's proposed rule for front-of-package (FOP) nutrition labeling.


This webinar explores approaches to method and monograph development while maintaining safety and quality standards specific to the OTC and Dietary Supplement industries. The speakers share industry insights regarding current state and potential changes with a changing administration. Original Air Date: February 24, 2025.


As part of an effort to promote public health, the FDA has updated the requirements that food must meet in order to use the “healthy” claim on their labels. Our infographic gives background on the update and a high-level view of the criteria.


As a manufacturer of specialty pet food or pet food products, how will Pet Food Label Modernization (PFLM) affect your business? In this blog, we help you decipher high-level changes coming with PFLM, including how to prepare for the updated guidelines.


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