Shelled samples were then graded by a Satake grader (Model TRG05B,
Japan) to separate the broken kernels.
In the preparation of parboiled brown rice (PB) samples, an approximately 4 kg of BR was soaked in hot
water, at initial temperature at 80 C for 4 h.
The
soaked BR samples were held at an ambient
temperature for 1 h and then continuously steamed
at 100o
C (~1 kg cm-2) for 20 min in an autoclave
(Model SA-300VL, Taiwan).