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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:



This scientific poster discusses the influence of various modes of detection and sample preparation for Vitamin K analysis.


This paper discusses the theory behind supercritical fluids, key method information, and the benefits to testing fat soluble vitamins in supplements as well as mycotoxins in food products by this unique and green chemistry methodology.


With a more wellness-conscious consumer market, virgin olive oil has an opportunity to attract customers with its health-boosting properties tied to polyphenols. In our webinar, John Reuther discuses pros and cons of testing methods for polyphenol determination and introduces a new quantitative method. Then, Mary Mori of California Olive Ranch discusses California agriculture regulations regarding discharge of waste streams and effect in field.


Have you ever wondered about the journey of your sample once you’ve sent it to Eurofins? This handy infographic shows the life cycle of a sample once we’ve received it in our laboratory, from labeling and identification through analysis and reporting.


This study seeks to develop and validate a method for identifying and quantifying four bioactive forms of vitamin B12 (adenosylcobalamin, cyanocobalamin, hydroxocobalamin, and methylcobalamin) from dietary ingredients and supplements, as a consensus quality control protocol for dietary supplement labeling and manufacturing.


This infographic highlights the most frequent reasons for variability of laboratory results and measures third party laboratories implement to address variability.


Air, gas, water, and ice used in manufacturing processes must be properly maintained and regularly tested in order to ensure compliance with regulations and safety for consumers. Our webinar aims to clear the mystery surrounding these standards and regulations. Viewers will learn how to navigate the appropriate requirements while protecting their customers.


Here we are in the third post of a series focusing on pet food, pet treat, and pet supplement testing considerations. We have explored guaranteed analysis and other testing considerations such as shelf life and microbes. This time around I’ll expand on a topic that people often view as less a food safety issue and more of a palatability issue: Rancidity.


This series is focused on getting new pet food, pet treat, and pet supplement businesses headed down the right path.


Whether you’re considering selling your homemade pet treats or starting a new pet treat business, one of the first steps you may find yourself tasked with is determining what a guaranteed analysis is. Figuring out how to have a product tested and what information is pertinent can be intimidating – the information in this post is intended to get you started in the right direction.


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