A prototype of radio frequency (RF) heating system of 27 MHz was developed to control rice weevil contamination in milled rice. The insects at all growth stages were completely eliminated at temperature of 50 and 55 ºC in all times of exposure. In addition, the heating treatment decreased significantly grain moisture content. Rice Physical quality: the color of treated rice at 50 ºC for 0 and…
The radio frequency (RF) heat treatment had effect to the enzymes activities. On treating temperature over 80