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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:



The Food and Drug Administration (FDA) monitors drug manufacturers' compliance with its current Good Manufacturing Practice (cGMP) regulations in order to ensure the quality of drug products. These regulations are designed to assure products are safe for use and contain the ingredients, strengths, and efficacies of claims made by the product. Learn what tests your OTC products need to be compliant.


Discover how to reduce sodium without sacrificing taste or functionality in food and beverage products. This white paper explores formulation strategies, technical insights, and best practices for achieving sodium reduction while maintaining consumer appeal.


The Pet Food Label Modernization (PFLM) initiative is reshaping industry standards, making dietary fiber a required metric. Learn how this change impacts pet food formulations, testing methods, and nutritional transparency.


The Eurofins team of process authorities routinely provides expert guidance to food manufacturers to prepare microbiologically safe products. In this service, we encounter many questions that span across a variety of food products and manufacturing processes. Here we list and will continue to compile the most common questions and answers asked of a process authority and the responses. Use this information as a guide in your scheduled process or as you work through the formulation and development of your new food product. You may also use this as a tool to submit your own questions for a process authority!


In the dietary supplement and ingredient industry, guaranteeing the safety and quality of products is essential. One important part of quality control is the testing for residual solvents—volatile chemicals used during manufacturing that can pose health risks if not adequately removed. Click to read our blog on considerations in testing for residual solvents.


The botanical industry’s unprecedented surge in popularity brings exciting possibilities, but it also invites a serious challenge: adulteration. This blog explains how to identify adulterated botanicals and the role of third-party testing in protecting consumer health and trust.


Compendial methods used for detecting sulfur dioxide and sulfites are prone to challenges, including false positives in sulfur-rich matrices. Eurofins Food Chemistry Testing Madison, Inc. offers a solution. Click to read about the innovative LC-MS method for determining sulfur dioxide and sulfites in food products.


Innovative ideas are common. Successfully launched products are not. Bringing a food or beverage concept to market involves far more than creativity. Our roadmap outlines the seven key stages required to take a product from initial idea to successful commercial launch—along with the risks, requirements, and technical checkpoints involved at each step. Click to read our guide for food startup and growth-stage brands.


The world of wellness is experiencing a “gummification” wave, which includes using gummies to deliver APIs as a replacement for traditional forms like pills and syrups. But this matrix doesn't come without challenges. Click to read how you can ensure the effectiveness of alternative forms like gummies, chews, drink mixes, and lozenges.


Consumer demand for clean label, natural, and plant-based products continues to drive reformulation efforts across the food and beverage industry. One of the biggest shifts in recent years has been the move away from artificial colors (FD&C dyes) in favor of natural colorants derived from fruits, vegetables, plants, and minerals. This paper outlines the common challenges when removing artificial colorants, and shares best practices for creating stable, visually appealing, and cost-effective products using natural alternatives.


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