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This study was conducted to investigate the effect of the addition of dandelion on color, texture, and antioxidant activity in Jeolpyon. Jeolpyon was prepared with varying amounts of dandelion ranging up to 20%. They were stored for 3 days at room temperature, and the color and texture were analyzed at different time intervals. L and a values decreased with increasing dandelion concentration while b values increased with increasing dandelion concentration in Jeolpyon. From texture analysis by Rheometer, the hardness and chewiness seem to be affected dramatically by the addition of dandelion in Jeolpyon. During storage, the control Jeolpyon without dandelion displayed greater than two fold increase in hardness, chewiness and brittleness, while the Jeolpyon with added dandelion had only slight increase during storage. The addition of dandelion in Jeolpyon also increased antioxidant activities such as DPPH radical scavenging activity, ABTS radical scavenging activity and reducing power. The antioxidant activities increased linearly with increasing dandelion concentration in Jeolpyon. The increase of antioxidant activities in Jeolpyon with the addition of dandelion may be attributed to the polyphenols in dandelion since the amount of total polyphenols increased with increasing amounts of dandelion in Jeolpyon. In sensory evaluation, the panels of twenties, thirties, and forties gave high scores to Jeolpyon with dandelion containing 10% 15%, and 20%, respectively in overall evaluation.

The Effect of Added Dandelion on Antioxidative Activity and Quality Characteristics of Jeolpyon