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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.


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.


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.


Whole-Genome Sequencing aids in tracking foodborne illnesses and drug resistance in food pathogens. Read on to learn how WGS ensures food safety and quality.


We are proud to share the publication of a new scientific article from our team overseas.  This article details the optimization of the NMR method, and the validation of the enhancements made.  This unique analysis can differentiate agave inulin/syrup/alcohol from cane or corn adulterants.


The FDA’s Food Safety Modernization Act (FSMA), requires domestic and foreign food facilities registered with section 415 of the Food, Drug, & Cosmetic (FD&C) Act to enact risk-based preventive controls. This document provides information on the required analysis of hazards and risk-based preventive controls to minimize or prevent identified hazards.


What are osmophilic yeasts and why do they matter? Christine Garduno from our Eurofins Microbiology lab in Fresno, CA discusses this topic in this short video. Eurofins publishes our Ask an Expert Series weekly on our social media platforms.


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.


Formulating a new product can be exciting! But sometimes we are not sure of the effect this can have on growth of spoilage organisms during shelf life or risk of pathogenic bacteria. Martha Kimber from our Advance Microbiology Lab in Fresno, CA discusses this topic in this short video. Eurofins publishes our Ask an Expert Series weekly on our social media platforms.


Should you use a microbiological enumeration method that reports coliforms in colony forming units (CFU) per gram or most probable number (MPN) per gram? Which method is better? Abraham Gonzalez from our Southern California Eurofins Microbiology lab discusses this topic in this short video. Eurofins publishes our Ask an Expert Series weekly on our social media platforms.


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