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All Journal Jurnal Kedokteran Brawijaya Medical and Health Journal
Handini, Tri Okmawati
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Medicine & Pharmacology

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Anti-Methicillin-Resistant Staphylococcus aureus (MRSA) of Ethanol Extract of God's Crown (Phaleria macrocarpa) Leaves, Peel, and Fruit Flesh Hestiyani, Rani Afifah Nur; Handini, Tri Okmawati
Jurnal Kedokteran Brawijaya Vol 31, No 2 (2020)
Publisher : Fakultas Kedokteran Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jkb.2020.031.02.2

Abstract

Methicillin-resistant Staphylococcus aureus (MRSA) is a pathogen that becomes the main concern since it is a multidrug-resistant organism and causes high morbidity and mortality. This study aimed to investigate the antibacterial activity of ethanolic extract of Phaleria macrocarpa leaves, peel, and fruit flesh on MRSA. This study was an experimental laboratory study with a post-test only control group design to assess the antibacterial activity of ethanolic extract from leaves, peel, and fruit flesh of Phaleria macrocarpa against MRSA ATCC 43300 and MRSA clinical isolates using a disk diffusion method. Extracts from the leaves, peel, and flesh of Phaleria macrocarpa had potential as an antibacterial agent against MRSA ATCC 43300 at a concentration of 40%, although not yet equivalent to antibiotic control. The ethanol extract of Phaleria macrocarpa peel at a concentration of 30-40% had potential as an antibacterial agent against MRSA clinical isolates, although not yet equivalent to antibiotic control. Further research needs to be performed so that Phaleria macrocarpa extract can be a potential source of subsequent antibacterial development against MRSA.
Comparative Antibacterial Effects of Honey Bee Propolis on Gram Negative Bacteria Escherichia coli and Gram Positive Bacteria Staphylococcus aureus Hestiyani, Rani Afifah Nur; Handini, Tri Okmawati; Nitihapsari, Galuh Yulieta; Ning Widhi, Anriani Puspita Karunia; Wahyudin, Wahyudin
Medical and Health Journal Vol 5 No 1 (2025): August
Publisher : Fakultas Kedokteran Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mhj.2025.5.1.15814

Abstract

Antimicrobial resistance in pathogens such as Escherichia coli and Staphylococcus aureus poses an urgent global health challenge. Honeybee propolis is known for its promising antibacterial potential.This study aimed to compare the antibacterial effectiveness of propolis against E. coli (Gram-negative) and S. aureus (Gram-positive) using the in vitro disk diffusion method. Propolis was tested at concentrations of 6.25%, 12.5%, 25%, 50%, and 100% against both bacterial species. Disk diffusion assays were conducted on Mueller Hinton Agar, and inhibition zones were measured using a vernier caliper. Data were analyzed using one-way ANOVA. The results showed the Inhibition zone diameters increased with higher propolis concentrations. At 100% concentration, S. aureus showed a 15 mm inhibition zone, while E. coli showed only 7 mm. One-way ANOVA indicated significant differences (p < 0.05) in both bacteria. These findings indicate that propolis exhibits antibacterial activity against both S. aureus and E. coli, with greater effectiveness against Gram-positive S. aureus. These findings support the potential use of propolis as a natural antibacterial agent, particularly for Gram-positive infections.
Co-Authors Ning Widhi, Anriani Puspita Karunia Nitihapsari, Galuh Yulieta Rani Afifah Nur Histiyani Wahyudin Wahyudin