Abstract
Soybeans and divided soybeans selected from those imported from the U. S., were stored for a year under constant temperature and humidity conditions [20°C (33, 43, 56, 66, 79, 94% R. H.) and 30°C (32, 43, 52, 59, 78, 92 % R. H.)]. The germination percentage, nitrogen solubility index (NSI) and acid value (AV) of the samples were measured.
The effects of the factors on the above characteristics were evaluated using the variance analysis method and the following results were obtained.
(i) It is important to control the temperature and humidity so as to minimize on the quality change in soybeans during times when they are stored for the long periods of the time.
(ii) It is very important to control the humidity, especially, for minimizing any quality change in the NSI and AV of soybeans stored for long periods of time.
(iii) Quality change rate of divided soybeans are greater than non-divided soybeans.
Using the method of multiple linear regression, the formula which can evaluate the change in the germination percentage and NSI of soybeans during one year at any temperature and humidity were able, to be obtained.
