This study was performed to experiment on the difference of general ingredient, pH, moisture content, °brix, color values, texture, sensory test, and antioxidative activity between experimental group added yacon(Smallanthus sonchifolius) powder: 2%, 4%, 6%, 8% to yanggaeng and control group added no...
This study was performed to experiment on the difference of general ingredient, pH, moisture content, °brix, color values, texture, sensory test, and antioxidative activity between experimental group added yacon(Smallanthus sonchifolius) powder: 2%, 4%, 6%, 8% to yanggaeng and control group added nothing. The pH of control was 6.65 and that of groups by adding yacon powder ranged from 6.31~6.57. And pH of yanggaeng was decreased significantly by addition yacon powder. At the °Brix measurement, control group was 41.23 °Brix, but that of groups by adding yacon powder ranged from 43.06~46.30 °Brix. The °Brix of control group showed the lowest. The moisture content of control group was higher than that of groups by adding yacon powder, and It was decreased significantly by the addition of yacon powder. At the result of color measurement, L value of groups by the addition of yacon powder was lower than that of control group, whereas a value and b value of groups by addition of yacon powder were higher than those of control group. Texture measurement score in terms of hardness, springiness, cohesiveness, chewiness, and brittleness for yanggaeng showed that 2~8% of substituted sample groups were higher than those of control group. DPPH radical scavenging activity of control group was 21.01%, whereas groups prepared by adding yacon powder ranged from 41.59~79.88%. As yacon powder increased, antioxidative activity also became bigger. Sensory evaluation scores in terms of color, flavor, taste, and texture preference for yanggaeng showed that 2~4% of substituted sample groups were higher than those of others. The overall preference was evaluated 4% > 2% > 0% > 6% > 8%, so the 4% yacon powder was assessed as the best, followed by 2% and 0%. Seeing the above results, this study suggest that addition of 4% yacon powder was the best substitution ratio for yanggaeng.
This study was performed to experiment on the difference of general ingredient, pH, moisture content, °brix, color values, texture, sensory test, and antioxidative activity between experimental group added yacon(Smallanthus sonchifolius) powder: 2%, 4%, 6%, 8% to yanggaeng and control group added nothing. The pH of control was 6.65 and that of groups by adding yacon powder ranged from 6.31~6.57. And pH of yanggaeng was decreased significantly by addition yacon powder. At the °Brix measurement, control group was 41.23 °Brix, but that of groups by adding yacon powder ranged from 43.06~46.30 °Brix. The °Brix of control group showed the lowest. The moisture content of control group was higher than that of groups by adding yacon powder, and It was decreased significantly by the addition of yacon powder. At the result of color measurement, L value of groups by the addition of yacon powder was lower than that of control group, whereas a value and b value of groups by addition of yacon powder were higher than those of control group. Texture measurement score in terms of hardness, springiness, cohesiveness, chewiness, and brittleness for yanggaeng showed that 2~8% of substituted sample groups were higher than those of control group. DPPH radical scavenging activity of control group was 21.01%, whereas groups prepared by adding yacon powder ranged from 41.59~79.88%. As yacon powder increased, antioxidative activity also became bigger. Sensory evaluation scores in terms of color, flavor, taste, and texture preference for yanggaeng showed that 2~4% of substituted sample groups were higher than those of others. The overall preference was evaluated 4% > 2% > 0% > 6% > 8%, so the 4% yacon powder was assessed as the best, followed by 2% and 0%. Seeing the above results, this study suggest that addition of 4% yacon powder was the best substitution ratio for yanggaeng.
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