2.2. Cooking time
The optimal cooking time for the milled rice was determined
using the Ranghino test (Mohapatra and Bal, 2006). Approximately
100mL of distilled water was boiled (98 ± 1 C) in a 250-mL beaker,
and 10 g of head rice samples was dropped into the water. The
measurement of the cooking duration was started immediately.
After 10 min and at every minute thereafter, 10 grains of rice were
removed and pressed between two clean glass plates. The cooking
time was recorded when at least 90% of the grains no longer had an
opaque core or an uncooked center. The rice was then allowed to
simmer for approximately 2 min longer to ensure that the cores of
all the grains had been gelatinized.