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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:



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.


When you submit a sample to the laboratory for microbiology testing, what happens? Follow a Listeria spp. sample through the lab workflow in this infographic.


Eight percent of children under age 5 and four percent of adults are allergic to food1. Food allergies trigger immune system responses that can have severe consequences, even in the presence of small amounts of an allergen. For individuals with food allergies, avoiding allergens entirely is crucial, making accurate food testing and labeling by manufacturers essential. The correct identification of allergens ensures consumer safety and prevents life-threatening reactions.


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.


In the evolving landscape of biotechnology, genetically modified organisms (GMOs) play a significant role in agriculture and food production. In this blog, we’ll explore key insights into GMO screening and testing, with a focus on GMO testing methods and applications.


In this on-demand webinar about controlling listeria, Dr. Douglas Marshall discusses some common sampling and testing practices and highlight risks associated with their use. Original Air Date: January 22, 2025.


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.


Understand what an acidified food is, the regulations associated with acidified foods, and different sterilization techniques (thermal processing and cold-fill-hold) for various food products. This guide will help you to determine the classification of a food, and provide resources to aid in processing, FDA filing, and where to go to with further questions.


The effectiveness of a preservative or antimicrobial product is critical in ensuring the safety of a food product and extending its shelf life. This article helps you to understand the basic considerations of preservative and antimicrobial efficacy testing, including determining a minimum inhibitory concentration (MIC), giving you the background needed to select the best test methods for your food product evaluation.


In this blog, we help you decipher high-level changes coming with Pet Food Label Modernization (PFLM), as well as how to be prepared for the updated guidelines for pet food products.


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