Identification and Antibacterial Evaluation of Bioactive Compounds from Garcinia kola (Heckel) Seeds
AbstractWe assessed the bioactivity of G. kola seeds on Streptococcus pyogenes, Staphylococcus aureus, Plesiomonas shigelloides and Salmonella typhimurium. The crude ethyl acetate, ethanol, methanol, acetone and aqueous extracts were screened by the agar-well diffusion method and their activities were further determined by Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) assays. The extracts were fractionated by Thin Layer Chromatography (TLC). Bioautography was used to assess the activity of the possible classes of compounds present in the more active extracts. Column chromatography was used to purify the active compounds from the mixture, while GC-MS was used to identify the phytocomponents of the fractions. The inhibition zone diameters of the extracts ranged from 0–24 ± 1.1 mm, while MIC and MBC values ranged between 0.04–1.25 mg/mL and 0.081–2.5 mg/mL, respectively. The chloroform/ethyl acetate/formic acid (CEF) solvent system separated more active compounds. The MIC of the fractions ranged between 0.0006–2.5 mg/mL. CEF 3 (F3), CEF 11 (F11) and CEF 12 (F12) revealed the presence of high levels of linoleic acid, 1,2-benzenedicarboxylic acid and 2,3-dihydro-3,5-dihydroxy-6-methyl ester, respectively. The results obtained from this study justify the use of this plant in traditional medicine and provide leads which could be further exploited for the development of new and potent antimicrobials.
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Seanego, C.T.; Ndip, R.N. Identification and Antibacterial Evaluation of Bioactive Compounds from Garcinia kola (Heckel) Seeds. Molecules 2012, 17, 6569-6584.
Seanego CT, Ndip RN. Identification and Antibacterial Evaluation of Bioactive Compounds from Garcinia kola (Heckel) Seeds. Molecules. 2012; 17(6):6569-6584.Chicago/Turabian Style
Seanego, Christinah T.; Ndip, Roland N. 2012. "Identification and Antibacterial Evaluation of Bioactive Compounds from Garcinia kola (Heckel) Seeds." Molecules 17, no. 6: 6569-6584.