To evaluate a proper collapse required for formed rice such as a rice ball and hand-rolled sushi by measuring the first inflexion point of force - strain curve by performing the single-axis compression rupture test of the formed rice by a rheometer.
After the first inflexion point of force - strain curve is measured by performing the single-axis compression rupture test of formed rice by a rheometer, the 5 stress - strain scattering diagram of the first inflexion point is created. The first inflexion point is a point when a rice mass starts to collapse due to the weakening of the adhesion of rice particles, a value where the force at the first inflexion point is measured as a breaking strength and strain is measured as breaking strain is linked to the collapse and ball of the formed rice. By using it as an index for indicating a proper collapse or comparing the numeric values, the collapse of the formed rice is examined, selected, and evaluated. Further, the formed rice with a proper collapse can be manufactured industrially. Also, this method is helpful for preventing the collapse of the formed rice being generated due to the move or the like of a manufacturing process line.
NAKAMURA RYOJI
NISHINOMIYA TAKESHI
HARADA TSUTOMU
