The performance parameters of the
machine including Percentage of whole seed, broken seed, partially shelled fruit, unshelled fruit, machine
efficiency and decortications efficiency, were evaluated at four different moisture content (7.97%, 10.53%,
13.09% and 15.65% d.b.) with a combinations of concave clearance (18 mm, 21 mm, 24 mm and 27 mm)
between concave sieve and rotating blades. The best set of conditions under which the decorticator can
be operated is at fruit moisture content of 7.97% d.b. with concave clearance of 21 mm between the concave
and the blade at which the maximum whole seeds of 67.94% can be achieved and machine efficiency
of 90.96% can be obtained. All materials used for fabricating the components were brought from sourced
locally.