Abstract
The effects of high-voltage electrostatic field (10 kV), batch drying (45°C), and natural air-drying (26°C) on the impact strength of a brown rice kernel (Oryza Sativa L.) variety of Khazar were investigated under three levels of kinetic impact loading (10, 23, and 37 mJ) with 10 replications. Results showed that the effects of kinetic impact loading on the breakage susceptibility index (BSI) of artificially dried rice grains were significant at 1% confidence level. With increasing kinetic impact loading, the average value of BSI increased. The sound brown rice grains became stronger in natural air-drying as the drying duration increased at low drying temperatures. High-voltage electrostatic field and batch drying considerably increased the rate of breakage susceptibility but the EHD drying was inherently energy efficient with a low surface drying temperature.
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