| 摘要 |
PURPOSE:Soybean grains are irradiated with far infrared rays in an atmosphere of low absolute humidity to effect rapid drying of soybeans without boiling and dehydration operations and remove the bad smell characteristic in soybeans. CONSTITUTION:Soybean grains are irradiated with far infrared rays, preferably of 5-12 micron wave length in an atmosphere of low absolute humidity so that the temperature of the grains is raised higher than that of the atmosphere, preferably lower than 18 deg.C. And preferably, the wave length of the rays is made gradually longer, as the moisture content of the grains is lowered. Thus, the so beans are dried, preferably until the water content comes down to 10-8%. |
