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http://dx.doi.org/10.3839/jabc.2019.023

In Vitro antioxidant effect of ethanol extract from Pennisetum purpureum  

Kwon, Young Ji (Department of Chemical Engineering, Chungwoon University)
Kim, Dong Chung (Department of Chemical Engineering, Chungwoon University)
Publication Information
Journal of Applied Biological Chemistry / v.62, no.2, 2019 , pp. 167-172 More about this Journal
Abstract
In vitro antioxidant effect of 50% ethanol extract from Napier grass (Penninsetum purpureum) was investigated. The yield and polyphenol content of the Napier grass extract were $6.3{\pm}0.35%$ and $79.6{\pm}3.65{\mu}g$ gallic acid equivalents/mg-extract, respectively. Antioxidant ability of the Napier grass extract such as fee radical and cation radical scavenging activities, reducing power, nitrite scavenging activity, and lipid peroxidation inhibitory activity proportionally increased as concentration of the extract increased. $EC_{50}$ values of the Napier grass extract for free radical scavenging, cation radical scavenging, reducing power, and nitrite scavenging were 1,930.0, 350.0, 840.0, and $1,470.0{\mu}g/mL$, respectively. In the presence of $85.0{\mu}g/mL$ of the Napier grass extract, lipid peroxidation was potently inhibited by 74.6%.
Keywords
Antioxidant effect; Ethanol extract; Napier grass (Penninsetum purpureum); Polyphenol;
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