Dehydration of Unhulled Rice and its Effects on Physical and Chemical Qualities of Brown Rice (Part III)

Effects of artificial drying of fresh unhulled rice on electric conductivity and solubility of potassium

Abstract

Decrease of electric conductivity of brown rice was noted when fresh unhulled rice was dried to 14% of moisture at high temperatures (70°C, 60°C, 50°C). In contrast, brown rice prepared by unartificial drying showed high figures of electric conductivity. In addition, the longer the time of drying of unhulled rice, the lower was the electric conductivity of brown rice.
It was apparent from the evidence at hand that this decrease of electric conductivity by heating of unhulled rice was due to the decrease of solubility of potassium in rice.