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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:



As regulatory expectations increase and competition intensifies across categories, brands need a certification partner that supports both scientific rigor and commercial success. The Eurofins Assurance program is designed to meet this need by helping companies move beyond basic compliance toward strategic advantage.


For co-packers, efficiency is everything. Commercial manufacturing lines are designed to manufacture products—not develop them. Eurofins Product Development & Innovation (EPDI) serves as a development partner for co-packers by taking on the early-stage work before commercialization. Keep reading to learn the benefits of the EPDI's process.


A global regulatory shift in April 2026 introduced new complexity for manufacturers working with Ashwagandha. India’s Ministry of AYUSH formally enforced a “root-only” requirement, prohibiting the use of leaves and other plant parts across product categories including supplements and functional foods.


Standard sugar analyses don’t always tell the full story, especially when isomaltose is present. Eurofins Food Chemistry Testing Madison, Inc. addresses this gap by measuring isomaltose as part of your product’s sugar profile. Why is this testing important? Keep reading to find out.


In today’s highly regulated dairy and infant formula market, manufacturers need deeper visibility into how processing impacts product quality. Learn how high-resolution mass spectrometry (HRMS) is emerging as a critical tool for dairy testing and infant formula analysis.


Liquid multivitamin supplements are growing in popularity, offering flexibility, convenience, and consumer-friendly dosing. However, testing liquid multivitamins presents significant analytical challenges due to their complex composition and the inherent instability of many vitamins.


Testing gummy supplements require specialized expertise, advanced preparation techniques, and a deep understanding of matrix effects. This is where the team at Eurofins Supplement & OTC in Madison, WI demonstrates proven leadership.


The recent FDA Dietary Supplement Innovation Public Meeting marks a pivotal moment for our industry. The agency is reexamining foundational concepts, including how dietary ingredients are defined and regulated.


In today’s rapidly evolving infant nutrition landscape, manufacturers are under increasing pressure to deliver formulas that are both safe and nutritionally aligned with breast milk. One of the most important scientific tools supporting this effort is proteomics. Learn more about how Eurofins leading laboratory is ensuring product integrity, optimizing formulations, and confidently bringing new innovations to market.


Understanding and effectively formulating lipids has become essential for today’s product developers. Whether replacing synthetic preservatives, selecting alternative oils, delivering specific health benefits, or exploring novel lipid technologies, each decision has impacts. Learn how Eurofins testing can help.


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