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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:



Eurofins SFA is excited to now offer a new FD&C Dye Screen. The FDA approved nine artificial dye molecules for use in foods, drugs, and cosmetics (with some limitations), in addition to a variety of naturally sourced colorants.


Turmeric has faced authenticity issues as instances of economic-adulterations to reduce the cost. We used carbon-14 and HPLC analyses as complementary methods to verify “all-natural” label claims of commercial dietary supplements containing turmeric ingredients.


Eurofins SFA is excited to offer a new IgG protein analysis that provides improved sensitivity, better accuracy, and faster turnaround time relative to ELISA or alternative techniques offered.  The analysis is performed according to AOAC 2010.01.


Food fraud, also known as economically motivated adulteration, is widespread worldwide.  Food fraud involves deliberate and intentional substitution, addition, tampering or misrepresentation of food, food ingredients or food packaging, labeling, product information or false or misleading statements made about a product for economic gain.  Food fraud can adversely impact consumer health, product quality, and brand reputation.


Learn more about the similarities and differences between the terms: fraud, defense, authenticity, and adulteration when it comes to foods, ingredients, and supplements.


Both Good Laboratory Practices (GLP) and Good Manufacturing Practices (GMP) can apply to testing needed for your raw materials and products. Learn how they apply during different phases of the product development process.


What really is dietary fiber according to the most recent FDA regulations? This blog will help break down the FDA’s most recent definition of fiber as well as provide examples of ingredients used in the industry today.


Your goal is to manufacture a safe product that meets the claims on your label.  How are you ensuring that your finished product will do this?  Proactively, or retroactively?  Putting a proactive plan in place to assess ingredient safety and quality is key to producing finished products that meet all of your quality standards.  Having a partnership with an accredited, independent (third-party) laboratory just in case something goes wrong is a must.


New options for sweetening low-sugar foods have entered the market. Testing of sweetener ingredients and the finished product is key.


Dietary supplement using immune-based ingredients have significantly increased over the last few years. Learn more on which trendy ingredients are being used and how to comply with the FDA guidelines on dietary supplements and functional food products.


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