2.2.1. Brown rice
The brown rice was washed by hand, dried completely, and pasteurized
wet at 70 C and 95% humidity for 180 min. The wet pasteurization
uses a low temperature and high humidity, which
prevents the starch in the rice from gelatinizing. Thus, the pasteurized
rice can be used as the raw rice material. The rice was soaked
for 300 min at 2 C.