• Title/Summary/Keyword: Napier grass (Penninsetum purpureum)

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In Vitro antioxidant effect of ethanol extract from Pennisetum purpureum (Napier grass (Penninsetum purpureum) 에탄올 추출물의 in vitro 항산화 효과)

  • Kwon, Young Ji;Kim, Dong Chung
    • Journal of Applied Biological Chemistry
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    • v.62 no.2
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    • pp.167-172
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    • 2019
  • 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%.