Phage-based rapid detection of salmonella in chocolate and cocoa
Innovative phage-based technology enabling rapid detection of Salmonella in chocolate and cocoa within 8 hours. Utilizes bacteriophages and indirect detection methods to amplify detection signal, offering a faster alternative to traditional methods.
Overview
The University of Minnesota's innovative solution leverages bacteriophages for the rapid detection of Salmonella in chocolate and cocoa products. This method significantly reduces detection time to under 8 hours, overcoming the limitations of traditional direct and indirect detection methods. By coupling Salmonella-specific phages with indirect detection techniques, this approach amplifies the detection signal, providing a reliable and efficient alternative for food safety testing.
Technical specifications
Key features:
- Utilizes Salmonella-specific bacteriophages to amplify detection signals
- Capable of detecting as low as 1 CFU of Salmonella in 375 grams of chocolate or cocoa within 8 hours
- Incorporates classical enrichment and filtration methods, enhancing detection accuracy
- Builds on established expertise in phage-based detection, previously applied to Listeria in milk
Technology readiness level
Currently at Technology Readiness Level 4, this solution has been validated in laboratory settings. Future steps include further testing with inoculated cocoa and chocolate samples and refining the method to ensure robustness and reliability across various conditions. The complete research and validation are projected to be achieved within two years.
About University of Minnesota
The University of Minnesota is a flagship, comprehensive public research university spanning multiple campuses, with a large research enterprise and clinical integration. Industry engages through co-located labs on the Twin Cities campuses, access to an academic health system for clinical translation, and pilot and field-testing facilities that speed scale-up. A statewide extension network and outreach centers provide real-world sites and data partnerships across Minnesota, while proximity to a dense medtech and Fortune 500 corridor enables frequent collaboration. Research is supported by competitive federal funding, including NIH, NSF, DOE, USDA, and DoD. A dedicated technology transfer office manages IP, licensing, sponsored research agreements, and startup incubation to speed commercialization.
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