Multiple steps and critical behaviors of the binding of tannic acid to wheat starch: Effect of the concentration of wheat starch and the mass ratio of tannic acid to wheat starch

The objective of this study was to investigate the effect of concentration of wheat starch (WS) and mass ratio of tannic acid (TA) to WS on interaction between TA and WS, using isothermal titration calorimetry (ITC), UV–vis spectrophotometer and dynamic light scattering (DLS). The interaction process and structural properties of complexes formed with different mass ratios of TA to WS ranged from 0.8 to 2.4 were also investigated through X-ray...