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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 company processes large batches of fish meat, often drying or further refining product on vessels that function as mobile processing facilities. Without rapid, on‑site testing, operators had limited visibility into moisture and composition changes occurring during production, especially while at sea. Learn how Eurofins approached this situation.


This webinar from our Best-in-Class series, compiled and presented by Eurofins Advanced Learning Institute lead instructor Mike Cramer, provides an introductory lesson on Foreign Material Prevention as it applies to food processing operations. Originally Aired on May 6, 2026


Consumers rely on sunscreen to provide dependable protection against UV radiation, one of the leading causes of skin damage, premature aging, and skin cancer. Because of this, sunscreen manufacturers face a unique responsibility: to ensure every product consistently delivers the level of protection stated on the label. Read more to why sunscreen testing matters.


The production and distribution of foods, beverages, nutraceuticals, and related products can offer a wide variety of unique challenges at every stage of development and release, including off-odors and off-flavors, discolorations, and the presence of foreign materials. This webinar covers various analytical strategies for troubleshooting these challenging problems. Originally Aired on January 21, 2026.


Supplement and OTC products often require non-traditional testing approaches such as radiolabel studies or DEA Schedule I compound analysis. Knowing when and how to apply these specialized methods is key to regulatory success.


In this webinar, our experts will discuss the latest international regulations, the impact of recycled materials, and how proactive testing strategies can keep your packaging safe and compliant. Originally Recorded on September 17, 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


Homeopathic formulations can be complex and challenging to test. A client approached Eurofins Supplement & OTC Testing in Madison, WI needing specialized testing of homeopathic tinctures. Read our case study to learn how the client was able to confidently release their product while maintaining compliance and efficiency.


There are many ways to sell and distribute authorized food packaging materials on the US market. One pathway for introducing new food contact substances to the U.S. market is by submitting a Food Contact Notification (FCN) to the FDA for premarket approval. Watch our webinar exploring the FDA’s authorization process for new food contact substances, focusing on migration testing and safety evaluation. Originally Aired on June 4, 2025


Join us for an informative session focused on understanding and solving common food packaging failures. Whether you're dealing with leaking, corrosion, or unexpected damage during distribution, identifying the root cause is essential to maintaining product quality, safety, and brand trust. Originally Aired on May 14, 2025


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