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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:



Eurofins Food Chemistry Testing, Madison and Eurofins Assurance are pleased to announce the launch of product certification designed to safeguard the quality of dietary supplements, ingredients and food. Brands, retailers, and facilities in the dietary supplements industry can leverage these new schemes to demonstrate their commitment to regulatory compliance and quality. Click to learn more about this new certification.


Product certification plays a vital role in minimizing the potential risks of adulteration, contamination, and other quality issues in your product. This infographic outlines the steps to earning the Eurofins Assurance Mark for your dietary supplement, ingredient, or food product.


Issues during the Clean-In-Place (CIP) process, such as insufficient rinsing, can lead to the contamination of products, resulting in quality and/or safety concerns. This on-demand webinar covers various strategies for the detection of CIP chemicals in foods, beverages, and related products. Originally Recorded on June 25, 2025


Chlorates and perchlorates are chlorine-based oxyanions that have emerged as contaminants of concern in the food and dietary supplement industries. These compounds are highly soluble in water and persistent in the environment, making them difficult to eliminate once introduced into the supply chain. Continue reading to learn what you can do to test for these contaminants.


California passed Assembly Bill 899, a law aimed at holding baby food manufacturers to a higher standard and mandating monthly testing of finished baby food products. As concerns grow about heavy metals in food, especially in infant formula, we must find a way to protect these vulnerable individuals. Read more about California Bill 899 by clicking the link.


Modern infant formula is a remarkable achievement in nutritional science, meticulously designed to meet or exceed all essential dietary needs for infants. Read this editorial by Eurofins Food Chemistry Testing CSO, Darryl Sullivan to learn about the rigorous analytical testing and regulatory requirements that companies must meet to bring infant formula to market.


June 24th, 2025– In response to evolving regulatory expectations and growing public health concerns for Bisphenol A (BPA), Eurofins Food Chemistry Testing Madison, Inc. (EFCT) has expanded its advanced testing capabilities to detect and quantify BPA. Read our press release to learn more.


As major retailers implement stricter testing requirements and regulatory expectations, ensuring compliance and quality in dietary supplements is more critical than ever. Join us as we navigate the latest advancements in testing and compliance for dietary supplements, helping brands and suppliers maintain regulatory integrity and consumer trust in a rapidly changing market. Originally Aired on June 11, 2025.


Because of the potential consumer health and economic risks associated with mycotoxin contamination, it’s critical to fully understand the food production and safety challenges presented by mycotoxins. Our infographic answers the following frequently asked questions to provide insight into addressing these concerns.


Explore the food safety concerns surrounding Bisphenol A (BPA) in packaging, its potential health risks, and emerging alternatives like BPAF, BP, BPF, and BPS.


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