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Free Radicals Scavenging Activity of Bulro Kugi (Lycium chinense Mill) Fruit, Leaf and Root  

Kim, Eun-Hae (Department of Food Science and Nutrition, The Catholic University of Korea)
Kim, Hyeon-Wee (Ottogi Research Center)
Kim, Su-Dong (Cheongyang Boxthorn Experiment Station)
Lee, Bo-Hee (Cheongyang Boxthorn Experiment Station)
Lee, Cherl-Ho (Department of Food Engineering, Graduate School of Life Science and Biotechnology, Korea University)
Koh, Kyung-Hee (Department of Food Science and Nutrition, The Catholic University of Korea)
Publication Information
Korean Journal of Food Science and Technology / v.37, no.1, 2005 , pp. 6-10 More about this Journal
Abstract
Free radical-scavenging activities of Korean Bulro Kugi (Lycium chinense Mill) fruit, leaf, and root were evaluated. Total phenolic contents of fruit, leaf, and root were $1,078.4{\pm}61.0$, $939.9{\pm}19.8$, and $3,792.2{\pm}106.6mg/L$, and their flavonoids were $396.7{\pm}15.2$, $1,952.9{\pm}21.3$, and $425.3{\pm}13.5mg/L$, respectively (p<0.001). HPLC revealed main polyphenolic compounds in fruit were p-coumaric and syringic acids in fruit, p-coumaric, syringic, and procatechuic acids in leaf, and p-coumaric, syringic, caffeic, and procatechuic acids in root. Highest radical-scavenging activities of superoxide anion and hydroxyl were found in leaf and root, respectively (p<0.001).
Keywords
Bulro Kugi (Lycium chinense Mill); polyphenol and flavonoid compounds; radical scavenging activity; ESR;
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