Polymer Films Characteristics for Modified Atmosphere Packaging: A Brief Review

Modified atmosphere packaging technology is an operational solution to increase the shelf life of food products. These days, MAP is widely employed in perishable food packaging. This technology leads to an increase in the shelf life of food by modifying the packaging atmosphere. In this type of packaging, polymer films are used with properties and capabilities that provide the atmospheric requirements for widening the shelf life of the product. In this study, the types, characteristics, and proper designs of polymer films for food packaging and the principles of modified atmosphere packaging were evaluated, and the application of polymer films in this field was investigated by referring to scientific sources. The required characteristics and properties of polymer films for food packaging, especially the gas transmission rate in polymers, and different methods to achieve a suitable atmosphere for the food product were discussed. Ultimately, existing gaps, new boundaries, and opportunities for the progress of these polymer films were categorized and demonstrated.

Keywords:

Modified atmosphere packaging , Food packaging , Polymer films , Permeability , Barrier properties , Biopolymers.