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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:



Explore how expanded STEC testing impacts risk management, regulatory readiness, and economics in the beef industry. Brian McFarlane breaks down why food safety decisions—especially around the Big 6 STECs—are both scientific and financial.
Keywords: Blog Meat Produce


Explore the leading causes of childhood and adolescent obesity—from ultra-processed foods and excessive sugar to sedentary lifestyles, parental influence, mental health, and governmental policy—and learn evidence-based guidance to support healthier nutrition and habits for kids.


Explore how to comply with FSIS guidance for ready-to-eat fermented, salt-cured, and dried products with an effective validation study balancing scientific rigor, processing expertise, and craftsmanship. This article outlines how to achieve the right balance in your validation approach and how strong, data‑driven studies ultimately enhance the safety, consistency, and reliability of dried and fermented meat products.


There has been a lot of talk about the Dietary Guidelines for Americans (DGA) that have been recently published. Despite being promoted as a major departure, the updated guidelines mix a few foundational changes with many recurring themes from earlier publications.


For manufacturers and brand owners, dietary fiber is more than a buzzword, it’s a key driver of product positioning, consumer trust, and regulatory compliance. But not every ingredient marketed as “fiber” qualifies under FDA standards. Keep reading to learn more about why understanding fiber is so important.


The U.S. Departments of Health and Human Services (HHS) and Agriculture (USDA) have released the 2025–2030 Dietary Guidelines for Americans (DGAs), signaling what many observers see as a notable shift in federal nutrition messaging. Read our overview on the new guidelines.


Choosing safe, high-quality food and dietary supplement products has become increasingly complex. Product labels are filled with claims, ingredient lists can be difficult to interpret, and rumors about lack of regulatory oversight run rampant across social media and elsewhere. Third-party product certification is the answer.


In today’s supplement marketplace, contract manufacturers play a pivotal role. As retailer expectations evolve and third‑party verification becomes increasingly important, product certification is no longer just a valued add, it’s becoming a strategic advantage. Click to learn more about the benefits of product certifications.


Infrared spectroscopy is a powerful analytical tool for rapid, nondestructive measurement. But despite its advantages, IR often develops a reputation for being unreliable or not accurate as primary methods. Keep reading to learn more about how to build and validate a reliable model.


Explore why “food safety culture” is often overcomplicated and how CEO leadership, clear expectations, and accountability truly drive food safety success.
Keywords: Blog Meat Produce


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