High temperature drying characteristics of crushed rice for animal feed

Abstract

Thin-layer drying experiments of rough, brown and crushed rice for animal feed were conducted to determine drying characteristics. Since optimization of the drying process reduces cost, we also investigated the conditions for improving the efficiency of rice drying. Rice samples were dried at 40–80 °C with 10%RH. The results showed that 1) the time required for drying crushed rice was shorter than for rough and brown rice, 2) the Page equation was a suitable model to explain the drying characteristics of crushed rice, 3) the drying constant of crushed rice showed the highest value and had Arrhenius-type temperature dependence, 4) the optimum drying temperature of crushed rice was 80 °C.