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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:



Ensure food safety of fresh produce to avoid a Cyclospora outbreak. Learn more about Cyclospora in commercial produce and how to detect and mitigate risk of contamination.


Learn how mushrooms can become contaminated with bacteria and what you can do to protect your consumers. Eurofins provides comprehensive food testing services.


Managing food safety & quality in fruit & vegetable processing is challenging and extremely dynamic; variable supply chains, seasonal quality issues, minimal pathogen mitigations, and short shelf-life often leaves little time to make critical decisions.


Fresh produce undergoes several steps to reduce risk of pathogen contamination, but did you know that Nanobubble technology could be one of them? Nanobubbles are very small (70-120 nanometers) gas bubbles that exhibit interesting physical properties due to its size. It has been a relatively new field of research that could provide significant improvements to food production and water treatment.


Implementing an Effective Listeria Control Plan for Fresh Produce


This webinar will provide insights on how a manufacturer validates Bioengineered removal processes and verify compliance with the rule. Original airdate September 15, 2022.


The USDA establishes a new standard for disclosing bioengineered food. Does the mandate apply to you? Read to learn more.


Historically, the fresh produce industry has viewed food quality and food safety as different disciplines and utilizing separate science. That is changing. The lines between food safety and quality are becoming blurred. For processors, retailers, growers and suppliers, the need to understand the intersection of food quality and safety has never been more critical. The strategic partnership between the Qfresh Lab and Eurofins was created specifically to address this need within the industry. This webinar explores how to navigate  through the combination of foods safety and quality.


New Rapid Pathogen Testing Services. Eurofins Microbiology Laboratories, Inc. is pleased to share our new Enteric Pathogen Risk Indicator (EPRI™) Testing. This new service is a rapid approach to risk identification and management using fast genetic technology (PCR) with the benefits of an indicator test. In addition, we can screen for Salmonella and Shiga toxigenic E. coli at the same time in one assay.


When we send a sample of food for testing, we generally think about a pretty simple system where we submit a sample, wait a bit of time, and then find out if the target organism is there. What we often forget is just how complex our food, processing systems, and environments truly are.


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