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자료유형
학술저널
저자정보
Yang, Xiao Nan (Department of Horticultural Sciences, Kyungpook National University) Xu, Enning (Department of Horticultural Sciences, Kyungpook National University) Park, Mi Jin (Department of Horticultural Sciences, Kyungpook National University) Ha, In Jong (Onion Research Institute, Gyeongnam Agricultural Research and Extension Services) Moon, Jin Seong (Onion Research Institute, Gyeongnam Agricultural Research and Extension Services) Kang, Young-Hwa (Department of Horticultural Sciences, Kyungpook National University)
저널정보
경북대학교 농업생명과학대학 경북대농학지 경북대농학지 제33권 제2호
발행연도
2015.1
수록면
69 - 73 (5page)

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The antioxidant capacities, total phenolic contents (TPC), and total quercetin contents (TQC) of a red (Chenjujuck), a yellow (Sunpower), and a white (Grasier) onion cultivar were determined in this study. Onion was separated into edible portion and dry skin. In the case of edible portion, the yellow onion had the highest antioxidant activity, followed by the red onion. The white onion showed neither antioxidant activity nor quercetin compounds. On the other hand, the dry skin of the red onion showed higher antioxidant activity than yellow onion skin. The white onion skin had slight antioxidant activity, low TPC, and no quercetin compounds. In addition, the flavonoid compounds of the edible portion and dry skins of these colored onions were analyzed by UFLC(ultra-fast liquid chromatography). The major compounds were quercetin 3,4-diglucoside and quercetin 4-glucoside in yellow and red onion edible portion, whereas the major compounds in yellow and red onion skins were quercetin 4-glucoside, quercetin, and quercetin 3,4-diglucoside.

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