The SEM images of starch granules during fermentation are shown in Figure 1. The fermented
rice granules over 6 h (Figure 1 c-e) showed small pits on the surface and the number of pits
increased with an increased fermentation time. Zhan-Hui (2005) explained that the surface of starch
granules consisting of amorphous amylose and intercrystalline region of dense branching in
amylopectin was easily hydrolyzed by acid. Thus, occurring some pits on the surface of starch
granule will affect on solubility, swelling and pasting properties of starch granule sample and the
result as described by this following.