Modified atmosphere packaging of fresh products consists in altering the atmosphere inside the package, which is achieved by the natural interaction between the respiration rate of product and the transfer of gases through the packaging material. The desired atmosphere can be created using either active or passive MAP. Active MAP is based on the displacement or replacement of gases in the package, or the use of gas scavenger or absorbers to establish a desired mixture of gases, while passive MAP is based on the use of a specific packaging film , in which a desired atmosphere develops naturally due to the products respiration and the diffusion of gases through the film (Lee , Arul , Lencki , & Castaigne , 1996).