A way of improving the quality of bread crumbs using the
ohmic heating technique of bread manufacturing was examined.
By baking with the ohmic heating technique, the change of
the electric current is thought to be affected by the change of the contact
area with the electrode by the expansion of the dough and the change of
moisture by evaporation; however, it suggests that the change of the electric
current in the 50 – 70fC range and the 70 - 100'C range is each influenced by
other factors respectively.
The falling of moisture content could be prevented by the
way of adjusting the voltage at the 100fC range. With this, the hardness of
ohmic heated bread after aging became similar in value to that of the oven
baked bread. Also, it was possible to decrease the electric energy by about 35%
compared with the case of impressed constant voltage.
It was suggested that the frequency was influencing the
change of dough because there was an admitted difference in the hardness of the
ohmic heated bread according to the frequency with the impressing voltage.