Description
Edible, biodegradable packaging made from natural polymers such as starch, gelatin, and chitosan.
Technical
These films are produced by extrusion of starch blends at 120–140 °C, cross‑linking gelatin with glycerol, or coating with chitosan in acetic acid. Barrier properties are enhanced by citric acid curing and glycerol plasticization, while antimicrobial activity is achieved through chitosan’s polycationic nature.
Science
Primary Reaction
Polymer film formation via extrusion, cross‑linking, and drying.
Sensory Profile
Aroma ()
neutralmildslightly sweetearthyclean
Origin & History
Civilization
Japanese, Thai
Era
centuries to present
Region