A Study of Drying Character of Soybean (II)

Moisture Contents and Transfer of Water

Abstract

(1) The equilibrium moisture content curves for soybean were obtained, having been substituted in T of Henderson's equation, (273+20), (273+40)°C.
(2) In the certain period, the observed equilibrium moisture contents as the intermediate of the several samples of soybean of which initial moisture contents differed individually, were obtained. It was found that in order of larger values of them, the rank was just Closed, Half, and Open.
(3) The mutual distances between the polygonal lines that depend on the storage methods of the samples, were comparatively similar.
(4) There was not so larse difference between two preliminary estimate values of equilibrium moisture content calculated from the initial moisture contents and the final moisture contents of the samples.
(5) The migrated water actually into the head spaces of the desiccators and the air was in the ratio, Open:Half:Closed=5:2:1.
(6) Further study on the determining of the moisture contents of soybean appears advisable because of some inconsistencies between calculated and observed valeus of the transferred water.