Relationships Between Soybean 11S Globulin Content and Thermal and Retrogradation Properties of Nonwaxy Maize Starch

In the present study, the relationships of soybean 11S globulin content, thermal properties, and retrogradation properties of nonwaxy maize starch in starch-globulin mixtures were investigated by differential scanning calorimetry. The onset and peak temperatures of maize starch were positively related to soybean 11S globulin content, whereas the thermal enthalpy was negatively related to it. However, the onset temperature, peak temperature, and thermal enthalpy of soybean 11S globulin were negatively related to maize starch content of mixtures. On the other hand, the onset and peak temperatures of retrograded maize starch were positively related to soybean 11S globulin content, whereas the retrogradation enthalpy was negatively related to it during storage. Therefore, adding soybean 11S globulin was an effective method to control maize starch gelatinization and retrogradation properties, which will be helpful for the food industry to produce high-quality products based on starch and soybean protein.