Chemosensory electronic nose for lipid oxidation detection in proteins
Innovative electronic nose technology for rapid, non-destructive detection of lipid oxidation in dairy, meat, and plant proteins. Utilizes multiple sensors to produce unique smell prints for precise identification of oxidation levels.
Overview
The chemosensory electronic nose offers a breakthrough method for detecting lipid oxidation in protein-rich products such as dairy, meat, and plant proteins. This technology enables rapid, non-destructive analysis, making it ideal for ensuring food quality and safety. By producing unique smell prints through multiple sensors, the electronic nose can identify, characterize, and quantify lipid oxidation at picogram levels, offering significant advancements in food quality evaluation.
Technical specifications
The electronic nose employs three different sensor technologies: conducting polymer based, quartz crystal microbalance based, and surface acoustic wave based. These sensors respond to specific headspace volatiles, allowing for precise detection of lipid oxidation. The technology requires minimal sample preparation and has been successfully tested on cooked meat, dairy products, plant proteins, and seafood. Future plans include training the systems with varying oxidation levels, conducting storage experiments under different conditions, and correlating results with conventional methods like HPLC and GC-MS.
Technology readiness level
Currently at TRL 4, the electronic nose technology has been validated in laboratory environments. Further development will focus on building prediction models and conducting comprehensive validation tests to establish the system's selectivity, sensitivity, and performance for commercial applications.
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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