lists the water contact angles of the different films, and it is seen that the films of pure gelatin and the blends containing up to 50% starch have similar water contact angles. The results indicate that gelatin is a continuous phase, while starch is a separated phase distributed in gelatin and covered by gelatin in all the blends. The starch has smaller water contact angle than gelatin indicating that the starch is more hydrophilic. The better hydrophilic properties guarantee that the blended materials have good water solubility, which is important for capsule materials.