Assessment of Rice Quality
For head rice yield (HRY) determination, 125 g dried and cleaned paddy sample, with two
replications, was dehusked with a Testing Husker (THU-35A, Satake Engineering Co., Ltd.),
while the bran was removed with a Satake Testing Mill (TM 05C) running for 45 sec for each
amount of dehusked brown rice samples. Head-rice was separated by Satake Test Grain Grader
(TRG 05B) using 5.2 mm S-type identical cylinder. HRY was defned in this study as the
ratio of head-rice mass to original cleaned dried paddy mass. Whiteness, milling degree and
transparency were measured using a Satake whiteness meter with four replications as double
sub-samples obtained from each sample of HRY. Percentage milling recovery was calculated
as the weight of total milled rice (including head rice and broken rice) divided by the weight
of dried paddy sample and multiplied by 100. Rice milling degree is defned as the extent to
which the bran layers of rice have been removed during the milling process.