Abstract
Syzygium cumini (L.) has been traditionally used as an antimicrobial agent and is potential to be developed. The ethanol extract of S. cumini seed was obtained through maceration and assessed for its antibacterial activity using a dilution method, with extract concentrations of 1.625; 3.125; 6.25; 12.5, and 25mg/ml. The minimum inhibitory concentration (MIC) and fractional inhibitory concentration index (FICI) of the extract-antibiotic combination against Methicillin-Resistant Staphylococcus aureus were determined. Phytochemical screening was performed using Gas Chromatography-Mass Spectrometry (GC-MS) and the result revealed the presence of 22 compounds in S. cumini ethanolic seed extract, including fatty acids (69.63%), sesquiterpenes (11.29%), monoterpenes (2.94%), steroids (6.06%), and others (8.59%). The MIC of the single extract and vancomycin against the tested bacteria was 0.78mg/ml and 2µg/ml, respectively. The lowest concentration (MIC) of the extract-vancomycin combination inhibiting the growth of MRSA was 0.39mg/ml. The FICI value was 1.5, suggesting indifferent interaction between the extract and antibiotic.
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