KMID : 1134820110400020171
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Journal of the Korean Society of Food Science and Nutrition 2011 Volume.40 No. 2 p.171 ~ p.176
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Comparison of Functional Properties of Black Soybean Pickled in Vinegar (Chokong)
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Seo Ji-Hyung
Jeong Yong-Jin
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Abstract
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This study on functional properties of chokongs produced with black soybeans and three kinds of commercial vinegars was performed to establish the basal preparation condition for chokong. When chokongs were prepared with different vinegars for different soaking times, total phenolic compounds increased significantly and total flavonoids showed a trend of small increasing after 4 days of pickling. The electron donating ability, nitrate scavening ability and antioxidant capacity for chokongs tended to increase along with pickling of black soybeans. Also the values were overall high in 70 % ethanolic extracts compared to water extracts for each chokong. When the chokongs were produced by pickling in 7 days, the electron donating ability, nitrate scavening ability and antioxidant capacity were higher in chokongs prepared with persimmon vinegar.
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KEYWORD
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chokong, black soybean, electron donating ability, nitrate scavening ability, antioxidant capacity
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