fermentation of Aureobasidium pullulans, also known as pullulan and pullulan polysaccharide, which has unique structure and properties , the structure is elastic, and the solubility is relatively large. Pullulan has strong film-forming properties, gas
barrier properties, plasticity, and viscosity, and has excellent characteristics such as being easily soluble in water, non-toxic,
harmless, colorless, and odorless. Wide application prospects.