These free fatty
acids produced by the hydrolysis reaction are harmful compounds
which make RBO unsuitable for edible use. To prevent rice bran from
becoming rancid, it must undergo a stabilization process or
extraction of oil soon after the milling process, which are two
effective methods for lipase enzyme inactivation and prohibition of
rancidity of RBO (Ju & Vali, 2005). However, extraction of oil soon
after the milling process is not practical for the commercial scale
because of the distance and transportation of bran to the factory.