As shown in the images, it consists of repeating two-glucoside units. The molar mass of the natural material is between 10 6 and 10 7 g/cm 3. In the human body, highly viscous HA and its sodium salt ...

In this study, we used a xanthan sample that was sonicated to reduce its molar mass and fractionated to narrow the molar mass distribution. This made it possible to obtain clearer evidence of the ...