The comparison of rheological properties of aqueous welan gum and xanthan gum solutions

► Rheological properties of welan gum and xanthan gum solutions have been compared. ► Welan gum shows a higher viscoelasticity than that of xanthan gum. ► The dynamic modulus has exponential relationship with the concentration. ► Adjacent double helices of welan gum arrange in parallel as the zipper model. ► The network structure formed by zipper model is more stable.