Mouth-feel decreased with increasing
amount of shell powder addition, but there was not a significant
difference (p > 0.05) between 0.1 % and 0.2% addition
of shell powder. Firmness increased with increasing
amount of shell powder addition, but no significant differences
(p > 0.05) in firmness were observed in tofu prepared
with shell powder. With increasing the amount of shell
powder addition, there were trends of decrease for
mouth-feel, but increase for firmness. Hardness measured
by texture analyzer did not coincide with the firmness of
sensory evaluation. Among them, tofu prepared with
0.05% addition of shell powder showed the highest score
of overall acceptability. However, there was not a significant
difference (p > 0.05) between no addition and 0.05%
and 0.1% addition of shell powder. According to the sensory
evaluation, the addition of shell powder with 0.05%
and 0.1% resulted in the manufacturing the most palatable
tofu.