Lc. Cabral et al., THE EFFECT OF SOAKING TIME ON WATER-ABSORPTION AND SOLID LOSSES OF WHOLE AND DEHULLED SOYBEANS, Archivos latinoamericanos de nutricion, 45(1), 1995, pp. 46-49
Dehulled entire soybean cotyledons are required for the preparation of
many Interesting products. Removing hulls had a dramatic effect on th
e rate of water uptake during soaking. Maximum uptake was reached in o
nly 3 hr compared to the 12 hr needed by whole beans. This saves time
and reduces microbial growth during soaking. The amount of water absor
bed by beans, with and without hulls, was similar once corrected for s
olid losses and surface water. Removal of fibrous shells during dehull
ing increased both the protein and oil contents by 2%. Dehulled beans
steadily lost solids during soaking. Losses were 8.6% compared to 0.7%
for whole beans when maximum uptakes were first reached. Ways of avoi
ding or reducing these losses are discussed.