Effects of 42- and 2450-MHz dielectric heating on nutrition-related properties of soybeans.

Dielectric heating at frequencies of 42 and 2450 MHz was applied to whole soybeans of natural moisture content for varies exposure times. The minimum energy absorbed (MEA) was calculated from moisture-loss and temperature-elevation data. Biochemical analyses were performed to determine protein dispersibility index (PDI), nitrogen solubility index (NSI), and trypsin-inhibitor, urease, lipoxygenase, and peroxidase activities.