Development of High Quality Cereal Drying and Storage Equipment (Part 1)

Microorganism Control Using Ultraviolet Irradiation

Abstract

This research aims at developing the drying and storage equipment that controls microorganism that cause degradation of grain quality, eco-friendly and safely without post-harvest application.
In this paper, we sterilized microorganism that adhere to the grain surface using ultraviolet radiation. We used a experimental equipment that irradiates ultraviolet radiation while mixing grain. As a result of sterilization experiment for the dry rough rice and the dry wheat, it was required for 26 to 55 hours to sterilize 90% of microorganism that adhere to the grain surface under condition of 5.3W/m² ultraviolet irradiance. As a result of germination test, we could not accept degradation of grain quality by ultraviolet irradiation.