2.4 %. Voids were hardly observed for B100. For the samples
of amorphous rice flour A with contents 20 wt%, 40 wt%
(B80A20, B60A40), we observed fine and ellipsoidal voids
with a comparably low void ratio of 17.8 %. On the other
hand, for the samples of amorphous rice flour A amounting to
60 wt%, 80 wt% (B40A60, B20A80), we observed voids of
large size and number with large void fraction (47.7-55.4 %).
The largest void size and the largest void fraction (66.1 %) in
the present experiments was obtained for batter A100, pure
amorphous rice flour. Results of Fig. 2 and Fig. 3 indicate that
B40A60, B20A80 and A100 provide batters of comparatively
high void fraction.
In Fig. 4 of the thermal properties of rice starch measured
by DSC, the endothermic peak temperature (about 68 ºC) of