Pullulan

 Pullulan is a natural polysaccharide polymer produced by the fermentation of starch by the fungus Aureobasidium pullulans. It is a water-soluble, tasteless, and odorless biopolymer widely used in the food, pharmaceutical, and cosmetic industries due to its excellent film-forming, adhesive, and oxygen barrier properties. Pullulan is biodegradable, non-toxic, and approved for use in various applications requiring edible and biodegradable films.