The function of food packaging has evolved from simple preservation methods to include such aspects as convenience, point of purchase marketing, material reduction, safety, tamper-proofing, and environmental issues . Active packaging of food is a good example of an innovation that goes beyond the traditional functions of the pack-age in which the package, the product and its environment interact to extend the shelf life of food or to improve its safety or sensory proper-ties, while maintaining the quality of the packed food . Intelligent packaging provides information to the processor, retailer and/or consumer of the status of the food or its surrounding environment .