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KMID : 1098420190270060427
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Korean Journal of Medicinal Crop Science
2019 Volume.27 No. 6 p.427 ~ p.436
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Radical Scavenging Effects of 10 Plant Essential Oils and Active Compound Screening Analysis
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Kim A-Young
Pyo Byoung-Sik
Kim Sun-Min
Park Mi-Jin
Lee Sung-Sook
Lee Kyoung-In
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Abstract
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Background: A growing interest in health has increased the need for the development of potent antioxidant materials known to play a role in various physiological activities. Currently research and development of non-toxic natural antioxidants with high activity is ongoing.
Methods and Results: In this study, we measured 2,2′-azinobis- (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging ability of 10 plant essential oils, selecting samples of Dendranthema indicum, Dendranthema zawadskii, and Citrus sunki essential oils. The samples were analyzed using liquid chromatography (LC) and the radical scavenging activity on LC-based systems with the same conditions. In the LC-mass spectroscopy (MS)/MS analysis of the active compound peak, 2-methoxy-4-vinylphenol with a molecular weight of 150.1 g/㏖ was identified in C. sunki essential oils. Eugenol or isoeugenol with a molecular weight of 164.1 g/㏖ as identified in D. indicum and D. zawadskii essential oils as radical scavenging active compounds.
Conclusions: In the LC-based measurement system, the active ingredient can be identified by simultaneously conducting profile analysis and the radical scavenging activity of essential oil samples.
In addition, LC-MS/MS analysis of the active compound peaks can be performed under the same separation conditions to obtain data that can identify the active compounds in the sample.
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KEYWORD
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Essential Oil, ABTS Radical, DPPH Radical, Antioxidant, LC, Mass Spectroscopy
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