Representative images showing structure of foil using a scanning electron microscope (SEM): (a) control, 50 g of starch and 40 g of glycerol dissolved in 1 L of water; (b) 50 g of starch, 40 g of glycerol, and 0.5 g of phytic acid dissolved in 1 L of water; (c) 50 g of starch, 40 g of glycerol, 0.5 g of phytic acid, and 10 g of chicory root water–enzyme extract dissolved in 1 L of water; (d) 50 g of starch, 40 g of glycerol, 0.5 g of phytic acid, and 20 g of chicory root water–enzyme extract dissolved in 1 L of water; (e) 50 g of starch, 40 g of glycerol, 0.5 g of phytic acid, and 50 g of chicory root water—enzyme extract dissolved in 1 L of water.