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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:



Although many genera of bacteria produce lactic acid as a primary or secondary end-product of fermentation, the term Lactic Acid Bacteria (LAB) is conventionally reserved for genera in the order Lactobacillales. LAB have many applications in food production and spoilage, all of which apply when considering when and how to test for lactic acid bacteria in food.


This Eurofins SFA case study highlights their investigative capabilities and work with legal and insurance claims. Here they take you on a guided case study, where they investigate an allergen claim originating in a restaurant.


Watch this webinar to learn how quality and maintenance can work together, and gain insight to demonstrate ROI to your senior management for new equipment or upgrades within your plant.


Whether it’s a finished food item or a component of pharmaceuticals, identifying suspect batches of any product is an important part of the quality control process. In this webinar, Michael Dziewatkoski of Eurofins gives you the inside look into analysis of foreign materials along with actual case studies.


In this webinar, Doug Marshall, Chief Science Officer at Eurofins Microbiology discusses an approach to zone 1 testing that recommends non-direct-contact surfaces simultaneously for pathogens and indicators, then building a correlation between quantitative indicator count and Salmonella or Listeria prevalence. Dr. Marshall will share insights on how companies are employing this approach, including exploration of the various philosophical and scientific rationales for zone 1 pathogen testing.


Not all rancidity tests are equally appropriate. Here are some helpful hints regarding how each test is performed, what it reveals, limitations and which may be more important for a given scenario.


Food Safety – Packaging Concerns – Opening Up a Can of …Well You Know. Learn about packing concerns from this case study performed by Eurofins SFA.


Curious what exactly food fraud entails? Take a look at food fraud practices with Eurofins. We are exploring the topic of food fraud and what exactly that terminology means.


In this webinar, Dr. Douglas Marshall, Ph.D., Chief Scientific Officer of Eurofins Microbiology, outlines his most valuable tips for an effective environmental monitoring program.


Addressing the differences between Food Defense and Food Fraud in the wake of the Intentional Adulteration (IA) Rule.


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