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KMID : 0352720160400010068
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Journal of Ginseng Research
2016 Volume.40 No. 1 p.68 ~ p.75
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Comparative phenolic compound profiles and antioxidative activity of the fruit, leaves, and roots of Korean ginseng (Panax ginseng Meyer) according to cultivation years
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Chung Ill-Min
Lim Ju-Jin
Ahn Mun-Seob
Jeong Haet-Nim
An Tae-Jin
Kim Seung-Hyun
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Abstract
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Background: The study of phenolic compounds profiles and antioxidative activity in ginseng fruit, leaves,
and roots with respect to cultivation years, and has been little reported to date. Hence, this study
examined the phenolic compounds profiles and 2, 2-diphenyl-1-picrylhydrazyl (DPPH) free-radicalscavenging activities in the fruit, leaves, and roots of Korean ginseng (Panax ginseng Meyer) as a function of cultivation year.
Methods: Profiling of 23 phenolic compounds in ginseng fruit, leaves, and roots was investigated using ultra-high performance liquid chromatography with the external calibration method. Antioxidative activity of ginseng fruit, leaves, and roots were evaluated using the method of DPPH free-radicalscavenging activity.
Results: The total phenol content in ginseng fruit and leaves was higher than in ginseng roots (p < 0.05), and the phenol content in the ginseng samples was significantly correlated to the DPPH free-radicalscavenging activity (r ¼ 0.928****). In particular, p-coumaric acid (r ¼ 0.847****) and ferulic acid (r ¼ 0.742****) greatly affected the DPPH activity. Among the 23 phenolic compounds studied, phenolic acids were more abundant in ginseng fruit, leaves, and roots than the flavonoids and other compounds (p < 0.05). In particular, chlorogenic acid, gentisic acid, p- and m-coumaric acid, and rutin were the major phenolic compounds in 3e6-yr-old ginseng fruit, leaves, and roots.
Conclusion: This study provides basic information about the antioxidative activity and phenolic compounds profiles in fruit, leaves, and roots of Korean ginseng with cultivation years. This information is potentially useful to ginseng growers and industries involved in the production of high-quality and nutritional ginseng products.
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KEYWORD
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antioxidant activity, cultivation years, ginseng parts, Panax ginseng, phenolic profiles
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