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KMID : 1011620150310060733
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Korean Journal of Food and Cookey Science
2015 Volume.31 No. 6 p.733 ~ p.740
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Antioxidative Activities and Quality Characteristics of Rice Cookies with Added Ligularia fischeri (Ledeb.) Turcz. Powder
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정이지:Jeong Yi-Ji
한영실:Han Young-Sil
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Abstract
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This study was performed to examine the functional and quality characteristics of rice cookies with added Ligularia fischeri (Ledeb.) Turcz. powder. Rice cookies were prepared with different amounts (0%, 0.5%, 1%, 1.5% and 2% to the flour quantity) of Ligularia fischeri powder. The antioxidant activities of Ligularia fischeri powder, specifically the total phenolic content, DPPH free radical scavenging activity and reducing power were found to be 212.19 mg GAE/g, 11.78 μg/mL (IC50), and 2.33 (O.D.), respectively. The antioxidant activities of the rice cookies with added Ligularia fischeri powder increased with increasing concentrations of Ligularia fischeri powder. Regarding the hunter’s color value of rice cookies with added Ligularia fischeri powder, L (lightness) and a (redness) values decreased (p<0.001) with increasing concentrations of Ligularia fischeri powder, whereas b (yellowness) values increased (p<0.01). The consumer acceptability score for the 3% Ligularia fischeri rice cookie groups ranked significantly (p<0.001) higher than the other groups in color, flavor, taste, texture and overall preference. These results suggest that Ligularia fischeri powder will be useful as a functional food resource with antioxidant activities.
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KEYWORD
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Ligularia fischeri, rice cookie, quality characteristics, antioxidative activity
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