Ternary films were prepared by the casting technique. Briefly, 1% PVA (polyvinyl-alcohol) hydrogel was obtained by dissolving 1 g polymer powder (Sigma-Aldrich Art. No. 363146, 99% Degree of Hydrolysis, MW 116,000-124,000) in 100 ml of distilled water under magnetic stirring at 70 °C until complete dissolution. A 2% starch solution was obtained by dissolving 2 g of corn starch in 100 ml of distilled water under magnetic stirring for 1 h at 90 °C. Additionally, 1 g of medium MW Chitosan (Sigma-Aldrich Art. No. 448877) was dissolved in 100 ml of a 1% aqueous acetic acid (v / v) solution and stirred at room temperature for 24 h. Blend films of Chitosan, PVA, and Starch were prepared after the preparation of hydrogels. Hydrogels were casted into petri dishes with a diameter of 90 mm to prepare PVA/Chitosan/Starch films without extract in the ratio of 4:4:2. This ratio of hydrogels was selected based on preliminary tests. The active film was prepared by adding 1 g of dry extract to the final hydrogel blends. Films containing 100% PVA, Chitosan, or Starch were also prepared as control films. All films were dried in an oven for 72 h at 38 °C.