The pasting properties of native and modified corn are shown in Figure 4 and Table 3. Thermalmodification significantly increased the pasting temperature (PT) of starch. HMT and MHT starchwere not significantly different but both significantly different from AHT and OPT starch. Theincrease of PT might be caused by the alteration in crystalline regions as the result of the reorientationof starch granules chains.[52] Furthermore, Stute[53] has reported that during the modification process,the molecular interaction between amylose in the crystalline region and amylopectin in the amorphous regions forms a strong structure with a hydrogen bond.