casted on plates to
obtain films with 4 mg of protein and 1 mL of essential oil per cm2
when present. Control films had the same amount of protein per
surface area. The plates were placed on levelled surfaces to obtain
films with homogeneous thickness, dried in a ventilated drying
chamber (30 C, 50% relative humidity, 20 h), peeled off, and stored
at room temperature at 57% relative humidity in desiccators with
saturated solutions of sodium bromide. Four types of films were
prepared (treatments): a) without essential oils; b) with clove
essential oil; c) with garlic essential oil; and d) with origanum