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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 demand for speed in food production and distribution continues to increase, driven by consumer expectations for freshness, short product shelf lives, and regulatory compliance requirements. In this environment, rapid pathogen detection methods have become essential tools for timely decision-making and effective food safety management. This webinar will provide a technical overview of commercially available rapid methods for detecting key foodborne pathogens, including Salmonella, Listeria spp., and L. monocytogenes. Originally Recorded on August 20, 2025.


In this webinar, we cover our approach to custom method development with a focus on chromatographic techniques, such as GC-FID, GC-MS(MS), HPLC, UPLC, and HPLC-MS(MS). From the initial steps of deciding on an approach, to actual lab development and method validation for routine or regulatory use will be explained using actual case studies and examples. Originally Recorded on August 12, 2025


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


Creating shelf-stable nutritional bars and other natural food products is about understanding the science behind food preservation, taste and appearance. One of the most critical factors in the formulation of long-lasting, safe and appealing products is water activity. Water activity plays a major role in maintaining texture, reducing the rate of fats oxidation preventing spoilage and ensuring safety from microbial growth. Keep reading to learn what is being done to create a longer shelf life.


In today’s competitive marketplace, success hinges on more than just product formulation. You must create a product experience that consistently delights consumers. Continue reading to learn how Eurofins Nutrition Analysis Center can help you understand how your product is perceived in the real world.


As the global appetite for high-protein and plant-based protein products continues to grow, food developers face a critical challenge: choosing the right protein ingredients that meet nutritional needs and perform well in real-world applications. Protein functionality testing is the backbone of successful innovation in this evolving space. Read more about protein testing by clicking the link.


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.


Low water activity foods (LWAFs) have historically been considered low-risk for microbiological hazards because their limited “free” (unbound) water in the formulation prevents bacterial growth. However, foodborne illness outbreaks revealed that pathogens can survive for extended periods in LWAFs, even in the absence of growth. Watch now to learn what is required to validate control measures to reduce microbial risks in LWAFs. Originally Aired on June 18, 2025.


In this video, Business Unit Manager, Mallory Bolander, discusses what trends Eurofins Food Chemistry Testing Madison, Inc. is seeing across the food and dietary supplement industries and how they adapt to changing client needs.


Are you finding inconsistencies with your protein and amino acids testing across suppliers? By collaborating with the Eurofins Food Chemistry Testing Madison, Inc protein experts you can gain greater control over your supply chain and restore confidence in your labeling claims. Continue reading to find out how we handle these situations.



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