Relationships Between Some Physicochemical Properties of Starches from Maize Cultivars Grown in East China

Granule size, amylose content, degree of crystallinity, thermal, pasting, and gel textural properties of starches separated from thirty seven maize cultivars grown in East China were studied with a laser particle size analyzer, spectrophotometer, X‐ray diffractometer, differential scanning calorimeter, Rapid Visco Analyser, and texture analyzer. Various correlations between the physicochemical properties were observed. The correlation coefficient between T o and T p , between T o and T c , and between T p and T c were 0.967, 0.879, and 0.941 ( p <0.01), respectively. Amylose content was correlated negatively with T c (r=‐0.640, p <0.01). Pasting temperature was positively correlated to T p ( r =0.738, p <0.01). Significantly positive correlations were observed between amylose content and final viscosity, between amylose content and setback ( r =0.665 and 0.735, respectively, p <0.01) and between peak viscosity and breakdown ( r =0.893, p <0.01). Trough viscosity was positively correlated to final viscosity and setback ( r =0.851 and 0.704, respectively, p <0.01). Significant correlations existed between final viscosity and setback, and hardness ( r =0.972 and 0.615, respectively, p <0.01). There was a significant interrelationship between setback and hardness (r=0.655, p <0.01).