, the size of air cell and homogeneity in crumbs were not similar (Fig. 2). It had been found that the thermal stability of the foam structure in the starch cake batters had been very dependent on protein (Howard, Hughes, & Strobel, 1968). The specific volume of rice cup cakes are noted in Table 3. Specific volume was ranged from 3.12 to 3.43 mL/g and was significantly different (p < 0.05). The specific volume of rice cupcakes prepared from HP-160 (