Continuous grain rotator designed for soft-electron sterilization

A continuous grain rotator which was equipped with a vibrating tray at a variable slope was developed for sterilization of dry food ingredients. The doses necessary for soft-electron (low-energy electron) sterilization of rice, buckwheat, wheat, tea leaf and black pepper with this continuous rotator were much lower than those with a batch-type grain rotator and at almost the same level as the doses for gamma-ray sterilization. The results suggest that the continuous grain rotator enables efficient soft-electron sterilization