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:



To support compliance with state regulations, Eurofins SF Analytical now offers a validated GC-MSMS method for the analysis of 1,4-dioxane with a reporting limit of 1 ppm. The method has been validated for use in solids, surfactant-containing solids, liquids, surfactant-containing liquids, solvent-based liquids, and oil-based liquids.


Developing a new animal veterinary product is a complex, time-consuming process. What should you expect from the development process? What does the typical timeline look like? Get the answers to these questions and more in Part 2 of our Ask an Expert series on developing new veterinary products.


Developing a new animal veterinary product is a complex, time-consuming process. What should be your key considerations? What about guidelines and regulatory bodies? Get the answers to these questions and more in Part 1 of our Ask an Expert series on developing new veterinary products.


Watch this on-demand webinar to learn about the significant organic food industry growth. The webinar provides an overview of the impact of SOE on certified entities, and a discussion on how to build risk management systems to meet regulatory and consumer expectations for your products' organic integrity. Original airdate April 19, 2023.


Do you work with animal veterinary products? Join Kari Nichols and Leo Schilling as they help you navigate the process for animal veterinary product development. Original airdate March 29, 2023.


USP <561> Articles of Botanical Origin details testing for raw materials used in pharmaceuticals. Eurofins Chemistry has expanded their methods to include raw materials, dietary supplements, and Cannabis (spp.). This brochure describes methods for measuring aflatoxins, elemental contaminants (heavy metals), and multiresidue pesticides.


The regulations and requirements surrounding bioengineered foods are confusing, especially when navigating federal regulations and the voluntary non-GMO Project verification. This FAQ answers common questions surrounding the National Bioengineered Food Disclosure Standard, the non-GMO Project, and testing options at Eurofins.


Pathogenic organisms, like Salmonella and E. coli, can grow in low water activity foods, leading to foodborne illness outbreaks. Thermal processes inhibit microbial growth and ensure only safe ingredients and products reach the shelves. Thermal processes must be validated to make sure they fully prevent pathogen growth. This blog outlines what foods may need an LWAF thermal process, what a validation study looks like, and the results the experts at Eurofins provide.


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.


Human milk oligosaccharides are a key component of infant formula. Recent trends, including combining multiple HMOs in a single formula, have complicated analytical testing. Eurofins has an AOAC first action method for testing up to seven HMOs at a time. This blog outlines the benefits and trends of HMOs in infant formula, and Eurofins methods for testing.


<< < 1 2 3 4 5 6 7 8 > >>

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