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KMID : 1134820110400070942
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Journal of the Korean Society of Food Science and Nutrition
2011 Volume.40 No. 7 p.942 ~ p.948
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Physiological Activities of Extracts from Different Parts of Cudrania tricuspidata
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Lee Hye-Jin
DO Jung-Ryong
Kwon Joong-Ho
Kim Hyun-Ku
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Abstract
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The physiological activities of extracts from the leaf, stem, and fruit of Cudrania tricuspidata were investigated. The electron-donating ability (EDA) of the 70% (v/v) ethanolic extract of stem was 90.20%; this was the highest value of all the extracts tested and higher than the L-ascorbate solutions. The total polyphenol contents were the highest in the leaf extracts under all extraction conditions. Especially, 70% (v/v) methanolic extract of leaf contained the highest total polyphenol content of 224.48 ㎎%. SOD-like activity showed the highest activity in water extract of leaf at 64.53%. Tyrosinase-inhibitory activities were the most effective in all extracts of fruit. ACE inhibitory activities were the highest in water extract of fruit. Nitrite-scavenging abilities under acidic conditions (pH 1.2 and pH 3.0) were the most effective in all the extracts. The results of this study will be useful for understanding the physiological activities of Cudrania tricuspidata extracts.
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KEYWORD
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physiological activities, Cudrania tricuspidata, electron-donating ability, total polyphenol contents, nitrite-scavenging ability
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