The highest moisture content of 2.9% was observed
in control biscuit. The results showed that the moisture
content gradually decreased from 2.90 to
1.53% with the increase of soy flour from 0 to 25%
as shown in table 1.
This is due to the fact that soy flour contained
greater amount of total dry solid with high emulsifying
properties compared to wheat flour. The moisture content of the biscuit decreased with the
increasing amount of soy flour in the blend due to
low moisture content of the beans. This is in agreement
with the findings of Sutharshan et al. (2001)
in which they have reported that increase in proportion
of soy flour reduces the moisture content of the
soy bean flour supplemented biscuits. The ash content
decreased from 11.6 to 5.1% with increase in
the percentage of soy flour from 0 to 25% as shown
in table 1. It was found that the ash content was the
highest in control biscuit and the lowest value was
recorded for the biscuits made from flour mixture
containing 25% of soy flour. Akubor and Ukwuru
(2005) reported that the moisture and ash contents
of the flour blend biscuits decreased with increasing
levels of soy flour from 0 to 100%.