2012 Volume 74 Issue 3 Pages 234-243
The authors have developed industrial scale Brown Rice GABA Enriching Systems with capacities of 250kg and 1ton which use an air heating and humidifying process. The heating and humidifying section uses a continuous flow system developed by Louisiana State University, from which the brown rice is consistently discharged at the bottom driving section, and then returned to the top via pneumatic conveyor. The air temperature and humidity in the humidifying and drying processes are both controlled by the proportion of saturated steam (130 to 140 degrees Celsius) generated by a steam mixer and heated air from a heat exchanger. Both systems can produce rice with a high GABA content equivalent to that of germinated brown rice, while maintaining a taste similar to unprocessed rice. The new system also enables high milling and rinse free rice processing yield due to dramatically reduced grain cracking, as well as reducing the time necessary for the processing. Furthermore, the processing cost is largely reduced by eliminating waste water discharge systems and bacteria elimination systems, by partially recirculating the humidifying and drying air, and also by sharing the same component for multiple purposes.
