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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 also 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.  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
  • 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 and over 180 invited presentations, his scientific research and outreach interests focus on improving the microbiological quality and safety of foods.  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, former 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’ laboratories are frequently asked questions about microbial indicator testing. This whitepaper will attempt to answer the most common questions and give an overview of the uses and benefits of testing for microbial indicators.


An outline of a few of the key qualities and considerations of the BACGene real-time PCR pathogen detection system, and how they translate to information you can use to be knowledgeable on your current and future pathogen testing decisions.


Eurofins explores the considerations for Salmonella identification, techniques, and guidance.


Eurofins is proud to offer a new service as part of its dairy testing portfolio. The Eurofins team has developed and validated a method to detect recombinant Bovine Somatotropin (rBST) in liquid milk products.


The regulations and requirements surrounding bioengineered foods are confusing, especially when navigating federal regulations and the voluntary non-GMO Project verification. This FAQ answers common questions surrounding the National Bioengineered Food Disclosure Standard, the non-GMO Project, and testing options at Eurofins.


Today, there is a widely shared belief that the rate of non confirming presumptives (NCP’s) “false positives” in food pathogen diagnostics has increased significantly in recent years. This increase has been most closely associated with PCR and real time PCR testing. It has not yet been possible to answer the question definitively, nevertheless, the belief is real, and the limited data that have been analyzed suggest that non confirming presumptive rates are indeed on the rise.


Testing food and ingredients is a proactive step you can take to analyze and verify the quality and safety of your products.  There are many considerations you should know about using test kits and instruments in your manufacturing plant. This article provides advice and considerations when buying in-house test kits and instruments.


Eurofins Scientific was founded in 1987 with four employees to market a ground-breaking testing technology using Nuclear Magnetic Resonance to detect whether sugar had been added during the winemaking process to increase alcohol content. In the following years, the patented SNIF-NMR® technology was used to verify the origin and purity of several types of food and beverages and identify sophisticated fraud not detectable by other methods.


In this blog post Andrew Ward discusses using a 3rd party inspection partner to ensure that quality of the products that a buyer is purchasing. Do you have a 3rd party inspection partner?


Your CBD and hemp-derived multiple-use cosmetic and personal care products that contain preservatives need to be tested to assure the preservation, or antimicrobial action is adequate to fight the introduction of microorganisms.


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