Rice bran samples (Sangyod Phatthalung rice) (O. sativa L) were obtained by milling rice grain in a local grinding mill, Kaow Klang Village, Pantae, Khunkanun, Phatthalung, Thailand, during February to April in 2010. Freshly milled bran samples were directly collected from the milling system in polyethylene bags. The grains were immediately separated from rice bran by sieving with 177e297 mm sieves. Different domestic heating methods (as describe in Table 1) of rice bran were applied within 1 h after milling. Unstabilized rice bran was used as the control in this study.