J. David Legan, PhD
Director of Science
David earned his Ph.D. in Food Technology from the University of Reading in the UK by modeling the ecology of mixed microbial populations, and then moved to Campden BRI in a variety of microbiological food safety research and client service roles. During that time, he was project lead for the Bacillus component of the UK’s pathogen modeling program. He moved again to Nabisco Research in New Jersey where he ran the corporate microbiology lab and developed a program of preservation technology development and microbial modeling. After the Kraft Foods acquisition, he moved to Chicago to work on Food Safety and Preservation research, and through modeling and validation studies:
- Optimized Oscar Mayer’s use of lactate and diacetate and their naturally cultured alternatives as Listeria-control agents in Ready to Eat meats
- Specified process conditions central to Oscar Mayer’s commercial launch of High Pressure Pasteurization of naturally cured RTE meats
David had responsibility for the Kraft cultures R&D group, developed a partnership to explore microwave sterilization leading to several patents, and led a program that developed an internal proprietary natural antimicrobial commercialized in several Kraft products. Technologies from his group supported approximately $4 billion in annual sales.
After years as a microbiology "client", he is now back in the "provider" role as Director of Science at Eurofins Microbiology Laboratories, Inc., by way of the Covance Food Solutions group based in Madison, WI, which he joined in 2016. In this role, he ensures appropriate method validation, explores new testing technologies, and fields multiple complicated food microbiology questions.
Products that his team has evaluated or developed and launched include:
- The 3M MDS platform in the Madison microbiology laboratory
- Flow cytometry for enumeration of probiotics
- Strain-level confirmation of probiotic identification using the polymerase chain reaction (PCR)
- Next-generation sequencing using the Oxford Nanopore Technologies GridION sequencing platform for microbial identification and microbiome analysis
Below are resources from David:
This poster discusses the method development of Menadione analysis by Supercritical Fluid Chromatography.
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.
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.
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.
While many vitamins are traditionally sourced from animal products, plant-based vitamin sources are a growing trend. Learn more about this new trend and what this means in regard to testing your products.
Candies can now give you more than a sugar rush. Functional chocolates also have vitamins, minerals, and botanicals and with that means the need for suitable validated methods to verify claims. Eurofins is your partner is all challenging vitamin, mineral, and botanical testing in finished products and raw materials.
Is Front-of-Package Labeling right for you? Learn how Front-of-Package Labeling affects nutritional value and market sales, and how Eurofins can help with testing your products and generating nutritional and dietary supplement facts panels.
Food and supplement testing has been a necessary part of the safe supply chain which means so have the chemicals that go along with this and until today, there have been very few options that positively affect the environment. Supercritical Fluid Extraction with Supercritical Fluid Chromatography now offers an environmentally safer method that is also faster, as sensitive and as selective as your current methods. We present an alternative way to extract and measure vitamins.
Do your products need a nutritional label? Do you ever find yourself facing confusion around nutritional labeling requirements?
Let us help with those questions! Listen to our informational webinar presented by Mollie Hammerschmidt, Analytical Services Manager, Eurofins Nutrition Analysis Center. She answers the most common questions and pain points we receive, from customers just like you, with nutrition labeling requests.
How often does infant formula require testing? Keren Breiterman of Eurofins Food Chemistry Testing in Madison, WI discusses this topic in this short video. Eurofins publishes our Ask an Expert Series weekly on our social media platforms.
