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:



Manufacturers and marketers of dietary supplements often have questions about what testing is required for Supplement Facts labels. This white paper is intended to provide information to help companies make informed choices about the testing and claims made on dietary supplements.


Gummy supplements continue to trend among consumers, but this matrix can be challenging to test. How does Eurofins address these challenges? Read about the answer from Jeff Stassi, Sr. Analytical Services Manager with Eurofins Food Chemistry Testing in Madison, WI.


Phytochemicals are chemicals derived from plants used to test the purity, composition, adulteration, and potency of botanical products. Discover how plant chemistry shapes and motivates botanical product authentication.


Ethylene oxide is gaining attention in the food regulatory space. EtO was banned as a food fumigant in 1991 in the EU. While ethylene oxide is not banned for use in foods in the United States, it is important to understand the allowed tolerances in the US and EU, especially as regulations continue to evolve and online sales contribute to increasing overseas exports. This article outlines the uses and toxicity of EtO, US and EU regulations, and EtO analysis at Eurofins.


Foreign materials in products can be dangerous to consumers and damage a brand's reputation. At Eurofins, we have the expertise and experience to handle all kinds of foreign material investigations, including issues in pharmaceuticals and dietary supplements. This case study outlines how we used microbial culture methods and 16S PCR to identify a bacterial contaminant and prevent future issues.


Foreign materials in products can be dangerous to consumers and damage a brand's reputation. At Eurofins, we have the expertise and experience to handle all kinds of foreign material investigations, including issues in pharmaceuticals and dietary supplements. This case study outlines how we used soot, ash, and char analysis to help a client avoid weeks of factory closure following a small fire.


Foreign materials in products can be dangerous to consumers and damage a brand's reputation. At Eurofins, we have the expertise and experience to handle all kinds of foreign material investigations, including issues in pharmaceuticals and dietary supplements. This case study outlines how we used microscopy and elemental analysis to determine the cause of discoloration in a pharmaceutical tablet.


Food fraud is a widespread and worldwide problem. Watch this video to learn more about which products are most frequently impacted, and how it can impact your business.


Natural and synthetic food dyes are used in almost all industries. Understanding the potential for dye adulteration is critical to knowing how and why products are affected. Furthermore, testing with a third-party lab can lead to standardized product coloration and reliable ingredient claims. This White Paper introduces the types of food dyes, the benefits of testing, types of tests, and considerations for choosing a third-party lab.


This method tests for all of the specific illegal adulterants that Amazon requires of its sellers of Sports Nutrition (Body Building) supplements.


<< < 1 2 3 4 5 6 7 8 9 10 11 > >>

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