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http://repository.ipb.ac.id/handle/123456789/12962| Title: | Kemampuan Anti--Laktamase Streptomyces lavendulae IVNF1-1 Sebagai Senyawa Pendukung -Laktam Penghambat Sintesis Dinding Sel EPEC K1-1. Ability of anti-β-lactamase Streptomyces lavendulae IVNF1-1 as a supporting compound for β-lactam to inhibit EPEC K1-1 cell wall synthesis. |
| Authors: | Lestari, Yulin Budiarti, Sri Prakoso, Haryo Tejo |
| Issue Date: | 2009 |
| Publisher: | IPB (Bogor Agricultural University) |
| Abstract: | Enteropathogenic Escherichia coli (EPEC) is a causing agent of diarrhea because it can adhere to apical plasma membrane of enterocyte cell and disrupt the electrolyte balance inside it. Widely used of β-lactam antibiotics against EPEC has stimulated resistance of it through β-lactamase formation. It has been known that Streptomyces lavendulae IVNF1-1 has anti-β-lactamases comprise of β-Lactamase Inhibitory Protein (βLIP) and clavulanic acid. The anti-b-lactamase compounds probably can be used as a supporting compounds for β-lactam antibiotics to control the growth of β-lactam-resistant-EPEC. The aim of this study was to examine the ability of anti-β-lactamase produced by S. lavendulae IVNF1-1 in supporting the function of β-lactam antibiotic in inhibiting EPEC cell wall synthesis. Clavulanic acid as well as βLIP inhibited the growth of EPEC K1-1. Adding of βLIP and clavulanic acid to 5 ml NB media which contain 100 μg/ml ampicilin and EPEC with 12 hour incubation in 37° C lowered the cell number of EPEC K1-1, indicating that combining the two anti-β-lactamase compounds increased their effectiveness. Synergism effect occured when both βLIP and clavulanic acid were combined at 4.7% (b/v) and 2% (v/v), respectively. Addition of two anti-β-lactamase compounds either separately or mixedly, has made the cell morphology of EPEC K1-1 longer in shape and broken in its cell appearance. Its cell wall has lysed. Anti-β-lactamase compounds of S. lavendulae IVNF1-1 are proven to be supporting compounds for ampicillin during inhibition of EPEC K1-1 cell. Enteropathogenic Escherichia coli (EPEC) merupakan bakteri yang dapat menyebabkan diare karena mampu menempel pada membran plasma apikal sel usus dan merusak keseimbangan cairan elektrolit di dalamnya. Penggunaan antibiotik ᵦ-laktam secara luas untuk menanggulangi pertumbuhan bakteri ini telah menimbulkan resistensi terhadap antibiotik tersebut melalui pembentukan enzim ᵦ-laktamase. Streptomyces lavendulae IVNF1-1 diketahui memiliki senyawa anti-ᵦ-laktamase yang terdiri dari ᵦ-lactamase Inhibitory Protein (ᵦLIP) dan asam klavulanat sehingga diduga dapat digunakan sebagai senyawa pendukung kerja antibiotik ᵦ-laktam dalam mengendalikan pertumbuhan EPEC yang resisten ᵦ-laktam. Penelitian ini bertujuan mengkaji kemampuan senyawa anti-ᵦ-laktamase yang dihasilkan oleh S. lavendulae IVNF1-1 dalam membantu kerja antibiotik ᵦ-laktam penghambat sintesis dinding sel EPEC K1-1. Asam klavulanat maupun ᵦLIP mampu menghambat pertumbuhan EPEC K1-1. Penambahan ᵦLIP dan asam klavulanat ke dalam 5 ml media NB berisi 100 μg/ml ampisilin dan biakan EPEC umur 12 jam yang diinkubasi pada suhu 37° C dapat menurunkan lebih banyak jumlah sel EPEC K1-1 yang mengindikasikan kombinasi kedua senyawa anti-ᵦ-laktamase tersebut kerjanya menjadi lebih efektif. Efek sinergisme terjadi pada kombinasi ᵦLIP dengan konsentrasi 4.7% (b/v) dan asam klavulanat dengan konsentrasi 2% (v/v). Penambahan kedua senyawa anti-ᵦ-laktamase tersebut, secara terpisah ataupun kombinasi, menyebabkan morfologi sel EPEC K1-1 menjadi memanjang dan beberapa selnya nampak rusak. Dinding sel EPEC K1-1 ada yang robek yang mengakibatkan sel menjadi lisis. Senyawa anti-ᵦ-laktamase S. lavendulae IVNF1-1 terbukti mampu mendukung kerja ampisilin dalam menghambat pertumbuhan sel EPEC K1-1. |
| URI: | http://repository.ipb.ac.id/handle/123456789/12962 |
| Appears in Collections: | UT - Biology |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| G09htp.pdf Restricted Access | Full Text | 883.62 kB | Adobe PDF | View/Open |
| Cover G09htp.pdf Restricted Access | Cover | 362.1 kB | Adobe PDF | View/Open |
| Abstract G09htp.pdf Restricted Access | Abstract | 118.78 kB | Adobe PDF | View/Open |
| Abstract G09htp.ps Restricted Access | Postscript | 2.25 MB | Postscript | View/Open |
| Bab I. Pendahuluan G09htp.pdf Restricted Access | Bab I | 400.22 kB | Adobe PDF | View/Open |
| Bab II. Bahan & Metode G09htp.pdf Restricted Access | Bab II | 474.32 kB | Adobe PDF | View/Open |
| Bab III. Hasil G09htp.pdf Restricted Access | Bab III | 421.5 kB | Adobe PDF | View/Open |
| Bab IV. Pembahasan G09htp.pdf Restricted Access | Bab IV | 725.56 kB | Adobe PDF | View/Open |
| Bab V. Simpulan G09htp.pdf Restricted Access | Bab V | 377.94 kB | Adobe PDF | View/Open |
| Daftar Pustaka G09htp.pdf Restricted Access | Daftar Pustaka | 390 kB | Adobe PDF | View/Open |
| Lampiran G09htp.pdf Restricted Access | Lampiran | 417.32 kB | Adobe PDF | View/Open |
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