Corn, potato, and tapioca starches were used to
replace proportions of the rice flour in gluten-free breads
and their quality characteristics were investigated. The
addition of potato starch at 20 or 30% to rice flour improved
dough and bread properties such as viscosity parameters,
leavening power, uniform air cells, color, and delayed
starch retrogradation compared to the rice bread. Moreover,
the bread containing 20% potato starch showed the highest
score in overall acceptability in sensory evaluation. Overall,
the quality of the rice bread was improved by adding starch
despite a little positive effect of corn starch.
In conclusion, high quality gluten-free rice bread was
produced by adding potato starch with good appearance
and taste. The presence of potato starch increased viscosity
parameters such as peak and break down in dough, and
delayed starch retrogradation during 3 day storage. Especially,
30% potato starch added rice bread exhibited the highest
score for overall acceptability.