A new technique developed by the US Agricultural Research Service (ARS) to detect heat-resistant toxins in foods such as ham, milk and eggs could help researchers and inspectors detect toxins that can cause gastroenteritis.

Discover B2B Marketing That Performs

Combine business intelligence and editorial excellence to reach engaged professionals across 36 leading media platforms.

Find out more


Marjorie Medina, a research chemist at the ARS Eastern Regional Research Center in Wyndmoor, Pennsylvania, has developed a biosensor-based method that detects chemical signals from toxin-producing bacteria and provides information about their specific biological activities.


Bacteria produce toxins under stressful conditions, such as when they are too crowded, denied food or fighting back against antibiotics. Generally, conventional heating and processing kill food-borne bacteria but do not destroy their toxins, the Agricultural Research Service said.


In addition to detecting bacteria and their toxins, Medina and other chemists at Wyndmoor are using advanced technologies to develop methods to screen, detect and confirm multiple chemical residues, such as veterinary drugs and pesticides, in food products.


ARS is the US Department of Agriculture’s chief scientific research agency.

GlobalData Strategic Intelligence

US Tariffs are shifting - will you react or anticipate?

Don’t let policy changes catch you off guard. Stay proactive with real-time data and expert analysis.

By GlobalData

Just Food Excellence Awards - Nominations Closed

Nominations are now closed for the Just Food Excellence Awards. A big thanks to all the organisations that entered – your response has been outstanding, showcasing exceptional innovation, leadership, and impact.

Excellence in Action
Winning five categories in the 2025 Just Food Excellence Awards, Centric Software is setting the pace for digital transformation in food and FMCG. Explore how its integrated PLM and PXM suite delivers faster launches, smarter compliance and data-driven growth for complex, multi-channel product portfolios.

Discover the Impact