food reguirements:Depending on the reguirements of packed food,the applicationof appropriate active packaging systems can significantly reduce food guality deterioration. food conditions that may play an important role in the shelf life of packed food include physiological processes (e.g.respiration of fresh fruits and vegetables),chemical reactions (e.g.lipid oxidation), physical processes (e.g. dehydration ) and microbiological aspects (e.g. spoilage by microorganisms).on the other hand intelligent or smart packaging indicate theg guality of the product.