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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:



Pesticide testing is a vital part of maintaining the safety, quality, and regulatory compliance of food products. For QA and food safety managers, understanding the right time to test for pesticides and how to navigate the complex regulatory landscape is crucial for keeping consumers safe and avoiding costly compliance issues. Click to read our guide on pesticide testing to learn more.


When it comes to raw material testing, choosing the right method isn't just a box to check. It's the foundation of your quality control program. So, when should monograph tests be used? And why do they matter? Read our blog to learn more.


Discover how increasing tariffs on agricultural commodities may heighten the risk of food fraud within global supply chains and explore key strategies to safeguard product integrity.


The polyphenols found in olives are partially responsible for the many recognized pharmacological properties of olive-based products, such as their antioxidant, antiviral, and immune-modulating effects. This paper briefly discusses the analytical methods developed and offered by Eurofins Craft Technologies (ECT), designed to quantify several polyphenols found in both raw olives and refined olive products.


February 17, 2025 – In response to increasing global demand for high-phenolic olive oils, Eurofins Craft Technologies Inc. has developed an innovative method for quantifying Valuable Olive Polyphenols (VOPs) in olive oil, olive leaf extracts, and other olive-derived products. Read more about the new method and applications for olive oil products.


Spices are known to have antimicrobial and PCR inhibitory components. This research validates the performance of the BACGene Salmonella spp. realtime PCR assay for detection of Salmonella in seven spice matrices and an additional nine spices via matrix verification.


This poster discusses research with the purpose to evaluate the performance of a commercial real-time PCR Salmonella detection method with spice matrices having antimicrobial and PCR inhibitory properties and to determine if any method modifications are required to obtain acceptable results.


Mushroom toxicity comes from many sources, including the soil, processing, and the mushrooms themselves. This infographic outlines sources of contamination, as well as steps to take to minimize the risk of toxins entering the food chain.


This case study details how Eurofins The National Food Lab was able to assist a start-up company in developing a shelf-stable Ready to Drink product with a high active concentration.


This case study details how Eurofins The National Food Lab was able to assist an ingredient supplier in understanding their new product's key performance differentiators to demonstrate their value proposition to potential clients.


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