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http://dx.doi.org/10.9721/KJFST.2013.45.2.206

Antioxidant Activity and Inhibitory Effect of Taraxacum officinale Extracts on Nitric Oxide Production  

Min, Kyung-Chun (Department of Animal Products and Food Science, Kangwon National University)
Jhoo, Jin-Woo (Department of Animal Products and Food Science, Kangwon National University)
Publication Information
Korean Journal of Food Science and Technology / v.45, no.2, 2013 , pp. 206-212 More about this Journal
Abstract
In the current study, antioxidant properties of extracts from different parts of Taraxacum officinale were determined by measuring the radical scavenging activity of 1,1-diphenyl-2-picryl hydrazyl(DPPH) and 2,2'-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS). The antioxidant activity of aerial and root parts of this plant was measured in extracts obtained from various solvents, e.g., water, 50, 70, 100% ethanol, and hot-water. The hot-water extracts had the highest radical scavenging activities. A further study was conducted to determine the total antioxidant activity of hot-water extract fractions obtained from different solvents, e.g., chloroform, ethyl acetate, n-butanol, and water. The ethyl acetate fraction of this extract displayed the strongest DPPH and ABTS radical scavenging activity and the highest total phenolic contents. The inhibitory effect of individual solvent fractions on the production of nitric oxide in LPS-stimulated RAW 264.7 cells was measured. The results indicated that the ethyl acetate fraction of aerial and roots part extracts significantly reduced nitric oxide productions.
Keywords
antioxidant activity; nitric oxide; radical scavenging activity; RAW 264.7 murine macrophage; Taraxacum officinale;
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Times Cited By KSCI : 5  (Citation Analysis)
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