2.4. Head rice yield evaluation
Waxy rice (250 g) from each treatment was dehulled with a
bench-top dehusker (Satake, model no. THU-35, Hiroshima, Japan),
then polished by a Satake rice polisher (Satake, model no. TM05,
Hiroshima, Japan). The sample was subsequently separated by an
indent cylinder (Satake, model no. TRG-05A, Hiroshima, Japan) to
determine the head rice yield; in this case the head rice yield is defined
as milled rice having kernel length of at least 75% of its original
length. Head rice yield was calculated by dividing the head rice
mass by an initial rough rice mass. All experiments were performed
in duplicate and the average values were reported.