Acetylation 1 Aureobasidium pullulans 1 Characterization 1 Chemical modification 1 Chemically modified 1 Degree of substitution 1 Glass transition 1 Nuclear magnetic resonance 1 Nuclear magnetic resonance spectroscopy 1 Physicochemical properties 1 Pullulan 1 Pullulan acetate 1 Pullulans 1 Scanning electron microscopy 1 Structural elucidation 1 Submerged cultures Synthesised 1 Tensile strength 1 Thermoanalysis 1