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For decades, many have aimed to use molecular sensor-based smart labels for food safety and quality surveillance, reducing food waste, and alleviating the global food crisis. Now, ZenXTag has devised a unique molecular design to achieve all these demands. The result is an ultra-low cost, paper-based labelling tag that can respond selectively to airborne biogenic amines – the universal indicator of food spoilage. It does not require any external power supply and can operate even at low temperatures where frozen food is stored. This biogenic amine-sensing technology is ideal for pre-packaged food products, especially meat products.
The ZenXTag food quality tag is very easy to use. As the molecular sensor can readily detect the vapor of biogenic amines, the tag does not need to come into contact with any part of the food product.
The tag will stay green when the food is fresh, whereas it will turn red-orange when the food spoils.