Summary
In this study, the drying characteristics of rough rice were investigated in ultr~sonic drying process. The drying tests were carried out using a ventilation dryer with ultra-sonic generating system. The drying rate of rough rice was accelerated when ultra-sonic was radiated. This can be supposed as thermal and non-thermal effects of ultra-sonic wave. The moisture content distribution in rough rice layer was measured at various ultra-sonic radiation power levels. The results revealed that it was differ from the moisture distribution during ventilation drying process. The quality evaluation was carried out using a "Mido Mete/' that could measure the surface "gloss" of cooked rice. From this experiment, it was revealed that the ultra-sonic dried rice scored higher point.HomePageKeywords: ultra-sonic, rough rice, drying, quality