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http://dx.doi.org/10.3839/jabc.2009.013

Antioxidant Activities and Antioxidant Constituents of Pepper Leaves from Various Cultivars and Correlation between Antioxidant Activities and Antioxidant Constituents  

Ku, Kang-Mo (Division of Plant Biosciences, College of Agriculture and Life Science, Kyungpook National University)
Kim, He-Sook (Division of Plant Biosciences, College of Agriculture and Life Science, Kyungpook National University)
Kim, Byung-Su (Division of Plant Biosciences, College of Agriculture and Life Science, Kyungpook National University)
Kang, Young-Hwa (Division of Plant Biosciences, College of Agriculture and Life Science, Kyungpook National University)
Publication Information
Journal of Applied Biological Chemistry / v.52, no.2, 2009 , pp. 70-76 More about this Journal
Abstract
In order to find out antioxidant principle in pepper leaves, the contents of total ascorbic acid, total phenolic, and total flavonoid compounds from thirteen cultivars were measured by spectrophotometer. The contents of total phenolic and flavonoid compounds ranged from 231 mg/100 g to 516 mg/100 g and from 251 mg/100 g to 689 mg/100 g respectively. Antioxidant effects of pepper leaves were determined by three different in vitro bioassays including DPPH, ABTS, and FRAP. The relationship between ascorbic acid and antioxidant activity showed a positive correlation and significantly high correlation coefficients were observed between the contents of total phenolic and antioxidant assays including DPPH, ABTS, and FRAP. Especially, the antioxidant effect of pepper leaves was in parallel with the contents of flavonoid. These results suggest that flavonoid contents considerably affect antioxidant activity of pepper leaves. Among the various pepper cultivars, pepper leaves showed different level of antioxidant activity. This study will provide good information about antioxidant activity and their compounds of pepper leaves.
Keywords
antioxidant activity; cultivar; functional substances; pepper leaves;
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Times Cited By KSCI : 3  (Citation Analysis)
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