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All Journal Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati JFMR (Journal of Fisheries and Marine Research)
Alim Isnansetyo
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Engineering Environmental Science

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Metode Antagonistik Langsung untuk Skrining Bakteri Laut Penghasil Senyawa Anti-methicillin-resistant Staphylococcus aureus (MRSA) Alim Isnansetyo; Yuto Kamei
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 10, No 3 (2005): October 2005
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v10i3.2873

Abstract

Metode yang berbasis antagonistik langsung antara bakteri laut dan Staphylococcus aureus resistan metisilin (Methicillin-resistant Staphylococcus aureus, MRSA) berhasil digunakan untuk skrining bakteri laut penghasil senyawa anti-MRSA. Metode ini menggunakan medium agar lapis ganda untuk mendukung pertumbuhan bakteri laut dan MRSA. Beberapa bakteri laut penghasil senyawa anti-MRSA berhasil diisolasi dengan metode ini. Suatu bakteri laut, strain O-BC30 merupakan bakteri yang paling kuat menghambat pertumbuhan MRSA. Isolat-isolat bakteri yang didapat menunjukkan aktivitas yang stabil terhadap MRSA dan aktivitas ini juga konsisten dengan aktivitas ekstrak yang diperoleh dari sel bakteri yang dikultur pada medium agar. Metode ini sangat berguna dan efisien untuk skrining bukan hanya bakteri penghasil senyawa anti-MRSA tetapi juga bakteri penghasil antibiotik.
In Vitro Anti-Vibrio Activity of Miana Leaves (Coleus scutellarioides (L) Benth) Basir, Buana; Alim Isnansetyo; Indah Istiqomah
JFMR (Journal of Fisheries and Marine Research) Vol. 8 No. 1 (2024): JFMR on March
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2024.008.01.7

Abstract

The aim of this research is to determine the bioactive compounds of miana leaves of Coleus scutellarioides (L) Benth against Vibrio spp.. This research was carried out from April to August 2018 at the Fish Pests and Diseases Laboratory, Department of Fisheries, Gadjah Mada University. Miana leaf samples were dried at room temperature, macerated with ethanol solvent and tested for antibacterial activity. Separation of bioactive compounds was carried out using liquid partition and silica gel using the column chromatography method. MIC (minimum inhibitory concentration) is applied to evaluate antibacterial activity. The results showed that the highest antibacterial activity was found in the chloroform fraction with inhibitory zone diameters for V. parahaemolitycus, V. alginolitycus, and V. harveyii of 25 mm, 26 mm, and 20 mm at a dose of 20 µg/disk. These findings indicate that the antibacterial activity of miana leaf crude extract is comparable to oxytetracycline with inhibition zones of 25 mm, 31 mm and 20 mm respectively against similar bacterial strains at 20 µg/disk. Therefore, miana leaves are a prospective natural source of anti-vibrio compounds.
Co-Authors Buana Basir Indah Istiqomah Yuto Kamei