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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 reclassification of the genus Lactobacillus into 25 different genera has direct implications for the probiotic industry. This webinar describes the rationale behind the name change, what it means for the industry, how the taxonomy update will be implemented, and why it is a good thing for the consumer.
Keywords: Webinar Probiotic


Do your products need a nutritional label?  Do you ever find yourself facing confusion around nutritional labeling requirements?  Let us help with those questions!  Listen to our informational webinar presented by Mollie Hammerschmidt, Analytical Services Manager, Eurofins Nutrition Analysis Center. She answers the most common questions and pain points we receive, from customers just like you, with nutrition labeling requests.


Are you stuck on the proverbial micro testing loop? Do you submit a sample to the lab, get a non-compliant result, fill out some paperwork, visit a field and then just start right back over at step one? If so watch this webinar on how to fix those issues.


You walk the field, you pick some product, and you drop it off at the lab for testing. Not long after, you hear back your sample is presumptive. Now what?


In this presentation, USP and Eurofins Microbiology provided an overview of USP microbiology methods tests for microbial contamination in dietary supplements, CBD/hemp products, and probiotics. The session included an in-depth discussion regarding the importance of suitability testing, and a comparison of USP methodology to AOAC/FDA BAM methodology. USP also provided an update on new USP chapters and shared insight on what is on the horizon for USP methods.


This presentation is focused on potential hemp regulations and their related dietary supplement regulations.   Some topics during this discussion include section 321(ff)(3)(B) of the FD&C Act and its impact on hemp ingredients, new dietary ingredient requirements and preparation to meet federal regulations for dietary supplements, including dietary supplement Good Manufacturing Practices, should FDA or Congress recognize hemp extracts as lawful dietary ingredients.


This online presentation announces the establishment of a groundbreaking partnership. Backed by a grant from the US Department of Commerce, the United Natural Products Alliance (UNPA) and National Animal Supplement Council (NASC) have partnered with the China Society for Inspection and Testing (CSIT) and Eurofins to establish a qualification program focused on high-quality botanical and nutritional ingredients from China, and to provide new direct access to the Chinese consumer market for US dietary supplements for humans and pets.


Off-flavor and off-odor issues can damage your brand reputation and even result in recall. Watch our webinar to learn how Eurofins uses gas chromatography with mass spectral detection (GC-MS) to provide solutions for off-flavors, off-odors, and flavor scalping caused by improper product packaging, or production or transportation issues. This webinar was originally recorded on October 01, 2020.


Our webinar hosted by Dr. Neal Craft, Chief Scientific Officer of Eurofins, explores the world of natural pigments, testing methods, and unique matrix challenges.


Equip yourself with the tools and information you need to implement effective environmental monitoring and control programs for viruses. Watch our webinar on best practices for virus environmental monitoring and remediation!


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