Researchers develop sensor that detects spoiled milk before opening
The sensor consists of chemically coated nanoparticles that react to the gas produced by milk and the bacterial growth that indicates spoilage.
Researchers from the Department of Biological Systems Engineering (BSE), the WSU/UI School of Food Science, Pullman, Wash., and other departments developed a sensor that can “smell” if milk is spoiled or not.
The sensor consists of chemically coated nanoparticles that react to the gas produced by milk and the bacterial growth that indicates spoilage, according to Shyam Sablani, professor at BSE. The sensor doesn’t touch the milk directly.