New artificial nose technology developed by the Norwegian University of Science and Technology (NTNU) could make it possible to reliably detect and identify spoiled and damaged food through smell.

The artificial nose is based on antenna technology, which provides the NTNU nose a distinct advantage over previous iterations of electronic noses. In comparison to other electronic noses, NTNU’s artificial nose leverages already existing and readily available infrastructure—antennas. NTNU’s simple design eliminates challenges posed by the complexity and resource-intensiveness of other electronic noses that are made up of hundreds of sensors.

NTNU’s artificial nose was able to classify volatile organic compounds—including isomers—with 96.7 percent accuracy. The technology was tested on spoiled and impact-damaged fruits and meats of varying ages, which affirmed the artificial nose’s efficacy in real-life scenarios.

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