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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 research poster evaluates how lactic acid interventions and high‑pressure pasteurization reduce Salmonella and Listeria in dried and fermented ready‑to‑eat salami.


Eurofins Rapid Microbiology Laboratories introduces the Advanced Learning Institute, offering accredited food safety training programs from HACCP, SQF, BRCGS, and FSPCA to practical courses on sanitation, Listeria management, auditing, and more for food manufacturers and professionals.


Selecting the right microbiological testing method isn’t just about speed or cost. It’s about risk management, product integrity, and regulatory compliance. Click to read about the strengths and limitations of different methodologies essential to avoid false negatives, regulatory citations, or costly recalls.


Bird Flu (H5N1) is spreading among birds, cattle, and humans. Experts warn it may be just one mutation away from human-to-human transmission.


Whole genome sequencing is no longer just a research tool. It’s a critical asset in food safety, outbreak response, and public health protection. Read our blog to learn more about whole genome sequencing and how it helps us better understand organisms like Salmonella and Cronobacter in food and infant formula.


Eurofins announces the formation of Eurofins Rapid Microbiology Laboratories, LLC, enhancing rapid testing speed, accuracy, and service for U.S. perishable markets.


Discover how Eurofins demonstrates a proof of concept for Whole Genome Sequencing (WGS) using Oxford Nanopore Technologies to accurately serotype and track Salmonella. Learn how this harmonized NGS approach improves global food safety with reliable, reproducible results.


This research poster demonstrates how BACGene real-time PCR enables accurate STEC detection in frozen vegetable matrices.


This research poster demonstrates how BACGene real-time PCR enables accurate Salmonella detection in frozen vegetable matrices.


This research poster demonstrates how BACGene real-time PCR enables accurate Listeria monocytogenes and Listeria species detection in frozen vegetable matrices.


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