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Antimicrobial activity of Gynura segetum's leaf extracts and its active fractions
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  • Journal title : TANG [HUMANITAS MEDICINE]
  • Volume 2, Issue 2,  2012, pp.20.1-20.5
  • Publisher : Association of Humanitas Medicine
  • DOI : 10.5667/tang.2012.0010
 Title & Authors
Antimicrobial activity of Gynura segetum's leaf extracts and its active fractions
Seow, Lay-Jing; Beh, Hooi-Kheng; Ibrahim, Pazilah; Sadikun, Amirin; Asmawi, Mohd Zaini;
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 Abstract
(Lour.) Merr. () is a well recognized medicinal plant in Indonesia and Malaysia. It is believed to have an anticoagulant effect and is used in treating snake-bites, inflammations and other skin afflictions. This study was carried out to evaluate the antimicrobial effects of leaves extracts and its fractions. The chemical compositions of the active extracts were also determined. The antimicrobial activities of different solvent extracts of leaves of were evaluated using the agar well-diffusion method. The Minimum Inhibitory Concentration (MIC) of the active subfractions was determined by the tube dilution method. Gas Chromatography-mass spectrometry (GC-MS) analysis was carried out to identify the chemical compositions of the active extracts. The ethyl acetate fraction and its subfraction E4 performed potent antimicrobial activities and fifteen known chemical constituents were identified by GCMS analysis as 4-vinylphenol, 1-tetradecene, phenol, 2,4-bis(1,1-dimethylethyl), 1-hexadecene, E-15-heptadecenal, hexadecanoic acid, 1,2-benzenedicarboxylic acid, dibutyl ester, 1-docosene, octadecanoic acid, 1-eicosene, cyclotetracosane, 1,2-benzenedicarboxylic acid, bis(2-ethylhexyl)ester, butanedioic acid, monomethyl ester, niacin and 4-hydroxy-benzoic acid. The results of this study suggested a connection between the antimicrobial activities and the chemical structures. The plant may be used as a potential source for antimicrobial agents.
 Keywords
agar well-diffusion;antimicrobial;gas chromatography-mass spectrometry;Gynura segetum;minimum inhibitory concentration;
 Language
English
 Cited by
1.
Anti-inflammatory and antioxidant activities of the methanol extract of Gynura segetum leaf, International Immunopharmacology, 2014, 23, 1, 186  crossref(new windwow)
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