Development of Techniques for Storing Rough Rice in Cold Regions (Part 4)

Effect of Difference in Grain Temperatures during Storage on Rice Quality

Abstract

The temperature of the rough rice near the inner silo wall gradually increased in spring and summer, whereas that of the rough rice in the center of the silo remained below ice point. The effect of this difference in rough rice temperatures in the silo on rice quality was investigated. There was no deterioration in the quality of rough rice near the silo wall, and the quality of the rough rice unloaded from silo after storage was uniform. These results indicate that there was no significant effect of the difference in grain temperatures in the silo on rice quality. The technique for storing rough rice at a temperature below ice point, i. e., super-low-temperature storage, at country elevators in cold regions using natural energy in winter was finally developed.