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http://dx.doi.org/10.9721/KJFST.2014.46.3.390

Effect of Roasting Conditions on the Antioxidant Activities of Tartary Buckwheat  

Lee, Myung-Hye (Korea Food Research Institute)
Cho, Jin-Ho (Korea Food Research Institute)
Kim, Jong-Chan (Korea Food Research Institute)
Kim, Bum-Keun (Korea Food Research Institute)
Publication Information
Korean Journal of Food Science and Technology / v.46, no.3, 2014 , pp. 390-393 More about this Journal
Abstract
The effects of roasting temperature and time on the antioxidant activities of tartary buckwheat were investigated. Compared to raw seeds (2.05 mg TAE/g), seeds roasted at $175^{\circ}C$ for 5 min showed significantly higher total polyphenol content (p<0.05), while those roasted at $250^{\circ}C$ for 10 min showed significantly lower total polyphenol content (2.77 and 2.56 mg TAE/g, respectively). The electron-donating abilities of tartary buckwheat seeds increased with an increase in the roasting time at lower temperatures (p<0.05). However, seeds roasted at a higher temperatures ($250^{\circ}C$) for 10 min showed significantly lower electron-donating abilities (p<0.05). Seeds roasted at $175^{\circ}C$ showed adequate L values, regardless of the roasting time. In contrast, seeds roasted for 10 min at $250^{\circ}C$, showed markedly lower L values. Our results suggest that the roasting temperature and time must be controlled to produce high-quality tartary buckwheat products.
Keywords
tartary buckwheat; roasting condition; total polyphenol; electron donating ability; color value;
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Times Cited By KSCI : 15  (Citation Analysis)
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