Effect of Extruded Polished, Brown, and Germinated Brown Rice on the Behavior and Plasma Parameters of ICR Mice

Abstract

The purpose of this study was to investigate the effect of extruded polished rice (PR), brown rice (BR), and germinated brown rice (GBR) on the behavior of ICR mice in a repeated open field test, as well as their concentrations of plasma lipids, glucose, and minerals. After 4 weeks in the open field test, the locomotion distance was significantly lower in mice fed GBR than those fed PR, but showed no difference in mice fed a diet with the same gamma-aminobutyric acid (GABA) content as GBR. The different rice diets had little influence on plasma lipids and glucose but the plasma calcium content was significantly higher in mice fed BR than those fed PR. These results suggest that the influence of GBR on mice behavior may be related to other components of GBR in addition to GABA and that BR and GBR may have no negative influence on mineral levels.