Traditionally, antimicrobial agents were directly added to foods[6]; however, direct application of antibacterial substances infoods has limited benefit because active substances may beneutralized, partially inactivated, sensorially deteriorated or eas-ily diffused on contact into the food mass. Therefore, the useof packaging films incorporating antimicrobial or antioxidantagents, by slow migration and helping to maintain high con-centrations, can be more efficient, allowing effective agents tobe released from the package during an extended period [9,18].Edible films have limitations having to do with their mechani-cal or barrier properties, such as brittleness and high moisturepermeability. The addition of plasticizers both decreases brittle-ness and increases the flexibility of the film, which are importantattributes in packaging applications [7]. Hydrophobic compounds,such as lipids, are frequently incorporated into hydrocolloid-based films to decrease water-vapor permeability (WVP) [19].The incorporation of plant essential oils instead of vegetable,seed, or grain oils in edible films can be an interesting alternative.