The effect of different microwave heat treatments on moisture, protein content and oil yield of rice bran is presented in Table 2. The aforesaid parameters observed no any significant (p > 0.0.5) changes after 28 days of storage. Moisture content of bran plays an important role in its stability during storage. The rate of hydrolysis of fats into FFA decreases as storage moisture content of bran decreases (Fernando and Hewavitharana, 1993).