Ultrasonic treatment affects the macromolecular, conformational, structural and rheological properties of curdlan in different solvents.

Curdlan is a microbial extracellular polysaccharide composed of β-(1 → 3)-glycosidic linkages, which exhibits poor water solubility at room temperature due to its formation of crystalline regions through intra- and inter-molecular hydrogen bonding interactions. The chain conformations of curdlan can be modified by different solvents. Thus, this study examined the effects of ultrasonication on the macromolecular, structural, and rheological characteristics of curdlan in three different solvents (0.