Antibacterial Activity of Combination of Kaffir Lime Leaf (Citrus hystrix DC) and Cherry Leaf (Muntingia calabura L.) Extracts Against Staphylococcus aureus Bacteria

  • Luthfita Putri Az-Zahra Setia Budi University

Abstract

The bacterial infection caused by Staphylococcus aureus can be treated with antibiotics. Kaffir lime (Citrus hystrix) and cherry (Muntingia calabura) leaves contain alkaloids, flavonoids, tannins, saponins, and terpenoids, known for their antibacterial properties. This study aimed to evaluate the antibacterial activity of a combination of kaffir lime and cherry leaf extracts against S. aureus. The kaffir lime leaves were extracted by maceration using 70% ethanol, while cherry leaves were extracted using 96% ethanol. The chemical compounds were identified, and antibacterial activity was tested by the dilution method to determine the Minimum Inhibitory Concentration (MIC). MIC values were combined in ratios of (1:1), (1:2), and (2:1). Antibacterial activity of the combinations was evaluated by the disk diffusion method. The most effective combination was further tested using the paper disc method for combination patterns. Data were analyzed statistically using the Shapiro-Wilk test, followed by one-way ANOVA and Post Hoc tests. The results showed the MIC for the kaffir lime leaf extract was 5%, and for cherry leaf extract, it was 10%. The disk diffusion test revealed the most effective combination was at a ratio of (2:1), with an inhibition zone of 19.35±0.33 mm, indicating a synergistic effect.

Keywords: Staphylococcus aureus, Citrus hystrix DC, Muntingia calabura L., Extracts combination, Antibacterial activity

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Published
2025-07-25
How to Cite
Az-Zahra, L. (2025). Antibacterial Activity of Combination of Kaffir Lime Leaf (Citrus hystrix DC) and Cherry Leaf (Muntingia calabura L.) Extracts Against Staphylococcus aureus Bacteria. Journal of Pharmaceutical Researchers, 3(2). https://doi.org/https://doi.org/10.31001/jpr.v2i2.2648