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Physical Characteristics and Consumer Acceptance of Tofu as Influenced by Water Dropwort

  • Seog, Eun-Ju (Department of Food Science and Engineering, Daegu University) ;
  • Kim, Hye-Ran (Department of Food Science and Engineering, Daegu University) ;
  • Lee, Jun-Ho (Department of Food Science and Engineering, Daegu University)
  • Published : 2008.06.30

Abstract

The effects of water dropwort on the physical characteristics of tofu were investigated and consumer acceptance test was conducted. pH decreased significantly with increasing water dropwort concentration from 0 to 3%, whereas titratable acidity showed the reverse trend (p<0.05). The amount of water dropwort did not significantly influence the moisture content up to 2% substitution (p>0.05). Turbidity increased significantly with increasing water dropwort concentration (p<0.05). A significantly lower moisture content in 3% water dropwort tofu may be attributed to the denser structure and hardness of that was significantly higher than those of the other samples (p<0.05). Even though $a^*$-values of 3% water dropwort tofu was lower than that of control, $a^*$-values increased significantly with increasing water dropwort content (p<0.05). On the contrary, $b^*$-values decreased significantly with increasing water dropwort content (p<0.05). 2% water dropwort tofu was found to be the best with respect to its overall acceptability score.

Keywords

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