Journal of
Medicinal Plants Research

  • Abbreviation: J. Med. Plants Res.
  • Language: English
  • ISSN: 1996-0875
  • DOI: 10.5897/JMPR
  • Start Year: 2007
  • Published Articles: 3761

Full Length Research Paper

Antioxidant potential of ethanol extract of Brassica rapa L. root

Jung Pyo Ryu1, Dong Chung Kim2*, Man-Jin In2, Hee Jeong Chae3 and Sung Dong Lee1*
1Department of Food and Nutrition, College of Health Science, Korea University, Seoul 136-703, Korea. 2Department of Human Nutrition and Food Science, International Institute of Bio and Health Science, Chungwoon University, Hongseong 350-701, Korea. 3Department of Food and Biotechnology, Center for Food Function and Safety, Hoseo University, Asan 336-795, Korea.
Email: [email protected],[email protected]

  •  Accepted: 03 February 2012
  •  Published: 09 March 2012

Abstract

Brassica rapa L. (turnip) roots were extracted with 70% ethanol, and then sequentially fractionated into n-hexane, chloroform, and ethyl acetate fractions. The ethanol extract possessed antioxidant potentials such as free radical scavenging, nitrite scavenging, and lipid peroxidation inhibitory activities as well as reducing power. Among solvent fractions of turnip roots extract, ethyl acetate fraction exhibited significantly high activities in free radical scavenging (p < 0.05), reducing power (p < 0.001), and lipid peroxidation inhibition (p < 0.05) due to the highest level of total phenolic content. The antioxidant potential showed a positive correlation with total phenolic content.

 

Key wordsBrassica rapa L., ethanol extract, antioxidant potential, total phenolic content.