Bulletin of the Chemical Society of Ethiopia
Journal / Bulletin of the Chemical Society of Ethiopia / Vol. 20 No. 2 (2006) / Articles
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DOI:
10.4314/bcse.v20i2.61409
Keywords:
Garcinia smeathmanii Xanthone Antioxidant

Article Details

Issue
Vol. 20 No. 2 (2006)
Section
Articles

Main Article Content

Antioxidant benzophenones and xanthones from the root bark of Garcinia smeathmannii


Alain Meli Lannang
Department of Organic Chemistry, Faculty of Sciences, University of Yaounde I, P.O. Box 812 Cameroon
Justin Komguem
Department of Organic Chemistry, Faculty of Sciences, University of Yaounde I, P.O. Box 812 Cameroon
Fernande Ngounou Ngninzeko
Department of Organic Chemistry, Faculty of Sciences, University of Yaounde I, P.O. Box 812 Cameroon
Jean Gustave Tangmouo
Department of Organic Chemistry, Faculty of Sciences, University of Yaounde I, P.O. Box 812 Cameroon
David Lontsi
Department of Organic Chemistry, Faculty of Sciences, University of Yaounde I, P.O. Box 812 Cameroon
Asma Ajaz
H.E.J. Research Institute of Chemistry, International Center for Chemical Sciences, University of Karachi, Karachi-75270, Pakistan
Muhammad Iqbal Choudhary
H.E.J. Research Institute of Chemistry, International Center for Chemical Sciences, University of Karachi, Karachi-75270, Pakistan
Beiban Luc Sondengam
Department of Organic Chemistry, Faculty of Sciences, University of Yaounde I, P.O. Box 812 Cameroon
Atta -ur-Rahman
H.E.J. Research Institute of Chemistry, International Center for Chemical Sciences, University of Karachi, Karachi-75270, Pakistan

Abstract

A new geranylated xanthone (1) was isolated from the root bark extract of Garcinia smeathmannii Oliver along with known guttiferone I, isoxanthochymol, smeathxanthones A and B, and triacontanyl caffeate. The structures of these compounds were elucidated by spectral analysis and by comparison with the reported data. These compounds showed significant antioxidant DPPH radical scavenging activities. 

 

KEY WORDS: Garcinia smeathmanii, Xanthone, Antioxidant

 

 

Bull. Chem. Soc. Ethiop. 2006, 20(2), 247-252.

Journal Identifiers


eISSN: 1726-801X
print ISSN: 1011-3924
 
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