Review of Time Temperature Indicators as Quality Monitors in Foodn Packaging

摘要

Time temperature indicators (TTIs) are devices used for recording thermal history and indicating the remaining shelf life of perishable products throughout their storage, distribution and consumption. This is achieved by the irreversible change of colour resulting from the cumulative effects of time and temperature. When applied in intelligent packaging, TTI can provide visual information that is easily accessible, and thus, consumers can judge from the visual information whether the food has de