JavaScript is disabled. Please enable to continue!

Mobile search icon
More Resources >> Our People >> Douglas L. Marshall

Douglas L. Marshall

Sidebar Image
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:



Pesticide testing is a vital part of maintaining the safety, quality, and regulatory compliance of food products. For QA and food safety managers, understanding the right time to test for pesticides and how to navigate the complex regulatory landscape is crucial for keeping consumers safe and avoiding costly compliance issues. Click to read our guide on pesticide testing to learn more.


For most US Foods, protein claims are based on a protein quality measurement, called PDCAAS. PDCAAS stands for Protein Digestibility Corrected Amino Acid Score. Check out our infographic to learn more about protein quality measurement.


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.


This comprehensive guide dives into the considerations that must be taken when developing a nutritional bar product. Topics Include: • Better for You Bar formulation to meet consumer demands • Cost consideration when formulating a nutritional bar • Fiber, Sugar, and Protein ingredient functionality in a nutritional bar
Keywords: Blog Food NFL


Pilot-scale and small-batch production play a critical role in food, beverage, and dietary supplement development. These early stage runs allow companies to fine-tune formulations, troubleshoot production challenges, and test market viability before full-scale commercialization. However, without proper planning, pilot production can lead to costly setbacks. This paper outlines key considerations—including food safety, quality control, production troubleshooting, and packaging—to ensure your pilot runs set the stage for a successful market launch.


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.


<< < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 > >>

https://www.eurofinsus.com/food-testing