2.6.2. Determination of released water content
The percentage of water released from sample was
determined according to the method of Nakao et al. (1991).
The sample with casing was weighed (A) and the sample
was then removed from the casing. The water released on
its surface was wiped with filter paper (Whatman No. 4)
and the sample was then reweighed (B). The empty casing
was weighed (C). The percentage of released water was
calculated according to the following equation