Journal of
Medicinal Plants Research

  • Abbreviation: J. Med. Plants Res.
  • Language: English
  • ISSN: 1996-0875
  • DOI: 10.5897/JMPR
  • Start Year: 2007
  • Published Articles: 3812

Full Length Research Paper

Bioactive compounds and antioxidant activity of different extracts from Vitex negundo leaf

M. Zargar1, A. H. Azizah1, 2*, A. M. Roheeyati1, A. B. Fatimah1, F. Jahanshiri3 and M. S. Pak-Dek1
1Department of Food Science, Faculty of Food Science and Technology, University Putra Malaysia, 43400, Selangor, Malaysia. 2Agro-Biotechnology Institute, Ministry of Science, Technology and Innovation of Malaysia. 3Faculty of Biotechnology and Biomolecular Science, University Putra Malaysia, 43400, Selangor, Malaysia.
Email: azizah@ food. upm. edu.My /[email protected]

  •  Accepted: 10 February 2011
  •  Published: 18 June 2011


The study was conducted to assess the antioxidant activity of methanol and hexane extract and essential oil from Vitex negundo leaf using different in vitro antioxidant assays. Antioxidant property was tested using 2,2-diphenyl-1-picrylhydrozyl (DPPH) free radical scavenging capacity, ferric ion reducing antioxidant power (FRAP) and β-carotene-linoleic acid assays. Total phenolic contents (TPC) were measured using Folin-Ciocalteu method. Flavonoids, tocopherols, β-carotene and lycopene were analyzed using high performance liquid chromatography (HPLC). Results of the present study showed that methanol extract of V. negundo leaf exhibited significantly (p < 0.05) higher antioxidant activity in terms of measurements of DPPH free radical (IC50), FRAP and β-carotene-linoleic assays than those of hexane extract and essential oil. Methanol extract of V. negundo leaf also contained high amounts of bioactive compounds including total phenolic compounds (363 mg GAE/g), epicatechin (16.98 mg/g), quercetin (13.45 mg/g), catechin (8.95 mg/g) and myricetin (3.32 mg/g) while the concentrations of tocopherol, β-carotene and lycopene were found to be lower.


Key words: Vitex negundo leaf, antioxidant activity, bioactive compounds, methanol extract, essential oil.