Korean journal of food and cookery science (한국식품조리과학회지)

Korean Society of Food and Cookery Science (한국식품조리과학회)
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The Quality Characteristics and Antioxidant Activity of Yakgwa Prepared with Herbs

허브를 첨가한 약과의 품질특성 및 항산화성 연구

  • Published : 2007.12.31
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Abstract

The purpose of this research was to investigate the effects of herbs, including rosemary, thyme, oregano, ginger, and green tea, on the quality characteristics and antioxidant activity of Yagkwa. After 16 days of storage at $60^{\circ}C$, all the herb-added samples showed significantly lower values for acid, TEA and peroxide than the control. The samples with rosemary and thyme showed significantly higher antioxidant activities than the other samples. The samples with rosemary and ginger showed significantly lower L-values than the control sample and the samples with thyme, oregano and green tea showed significantly lower a-values than the control. For the b-value, the control sample had the highest value. In the sensory evaluation of the Yakgwa, there were no significant differences between the samples in terms of color, flavor and texture. For overall acceptability, the rosemary-added sample showed the highest score among the samples and the thyme-added sample showed a significantly lower score than the control. In the texture analysis, all the herb-added samples, except for green tea, showed higher hardness than the control. In conclusion, the addition of herbs would be a useful way to enhance the antioxidant quality of yakgwa and rosemary would be the best choice when considering antioxidant activity and sensory characteristics.

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