the tested treatments, the maximum value of DE (10.7) was observed in rice bran with MH treatment for 5 min and minimum value of DE (1.4) was recorded in the rice bran treated with EV for 20 min. The microwave-heated sample (5 min) might have generated an excessive thermal energy and the browning reaction became prevalent. The ethanol vapor treatment, however, was least effective in the color change, possibly because the vapor treatment was done at a lower temperature than that with the direct heat treatments. Moreover, ethanol vapor might have an inhibitory effect
on the browning reaction.