Drying Characteristics of a Single Grain of Rough Rice

For Three Postures in the Air Stream

Abstract

The drying characteristics of a single grain of rough rice was examined for three postures of the grain (shown in Fig. 1) in the air stream which was set at the velocity of 10cm/s. The apparatus used was the same one which was reported in previous papers (References 1 and 3). Results obtained were shown in Figs. 2 through 4.
Each drying characteristics of (a), (b) and (c) in Fig. 1 varied with initial moisture contents, the appearance of cracks and individuals.
The equilibrium moisture contents of cracked kernels of rough rice were 1 or 2% d. b. lower than those of untracked ones.
The effects of the posture were not significant. Therefore the shape of a single grain of rough rice could be assumed as a sphere.