scholarly journals Isolasi Bakteri Asam Laktat (BAL) dari Saluran Pencernaan Ikan Nila (Oreochromis niloticus) dan Kemampuannya Dalam Menghambat Staphylococcus aureus dan Shigella sp.

2020 ◽  
Vol 2 (1) ◽  
pp. 23-31
Author(s):  
Alpina Bukhori ◽  
Sartini Sartini ◽  
Rahmiati Rahmiati
Keyword(s):  
Staphylococcus Aureus ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Digestive Tract ◽  
Oreochromis Niloticus ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Isolation And Characterization ◽  
Inhibitory Power

Lactic acid bakteria have characteristics that are able to ferment sugars or carbohydrates and produce lactic acid as the final product of fermentation. The purpose of this research was to isolates the lactic acid bacteria from the digestive tract of tilapia fish and to investigate the inhibitory power produced by lactic acid bacteria in inhibiting the growth of Staphylococcus aureus and Shigella sp. Isolation of lactic acid bacteria was done by using MRSA medium and to see the ability of lactic acid bacteria isolates in inhibiting the growth of Staphylococcus aureus and Shigella sp then used disc diffusion method. The isolates obtained were then characterized by morphology and biochemistry. From the research obtained two lactic acid bacteria that is sp1 and sp2. Lactic acid bacteria sp1 and sp2 are able to inhibit Staphylococcus aureus and Shigella sp with the biggest inhibition to Staphylococcus aureus by sp2 of 8.75 mm and the biggest inhibition of Shigella sp is shown by sp2 that is equal to 7.16 mm. Based on the results of isolation and characterization done in this research can be concluded that lactic acid bacteria of the digestive tract of fish tilapia sp1 and sp2 capable in inhibiting Staphylococcus aureus with a the number of 8.75 mm and Shigella sp with a of 7.16 mm.

scholarly journals Isolation of Lactic Acid Bacteria That Produce Protease and Bacteriocin-Like Substance From Mud Crab (Scylla sp.) Digestive Tract (Isolasi Bakteri Asam Laktat yang Menghasilkan Protease dan Senyawa Bacteriocin-Like dari Saluran Pencernaan Kepiting

2015 ◽  
Vol 20 (1) ◽  
pp. 33 ◽  
Author(s):  
Heru Pramono ◽  
Pipin Suciati ◽  
Sapto Andriyono
Keyword(s):  
Staphylococcus Aureus ◽  
Bacillus Subtilis ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Digestive Tract ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Mud Crab ◽  
Isolation And Characterization ◽  
Spoilage Bacteria

Saluran pencernaan merupakan lingkungan kompleks yang terdiri atas berbagai spesies bakteri. Saluran pencernaan biota perairan terdiri atas bakteri aerob dan anaerob yang mampu memproduksi senyawa antibakteri dan enzim. Tujuan penelitian ini adalah untuk mengisolasi bakteri asam laktat yang menghasilkan protease dan senyawa bakteriosin-like dari saluran pencernaan kepiting bakau. Isolasi dan karakterisasi isolat dilakukan menggunakan media MRS. Supernatan netral bebas sel isolat telah diuji dengan menggunakan disc difusi agar terhadap bakteri patogen dan pembusuk. Uji produksi enzim protease telah diuji dengan metode disc diffusion agar menggunakan media kasein agar. Di antara seratus isolat, terdapat 96 isolat menunjukkan zona bening di MRS + CaCO3,, katalase negatif, dan bakteri Gram positif. Tiga puluh empat isolat bakteri asam laktat menghasilkkan protease dan hanya empat isolat (yaitu IKP29, IKP30, IKP52, dan IKP94) menunjukkan penghambatan yang kuat terhadap bakteri patogen dan pembusuk. Terdapat tiga pola inhibisi dari keempat isolate terhadap Bacillus subtilis, Staphylococcus aureus, Eschericia coli, dan Salmonella sp. Empat isolat tersebut berpotensi untuk dimanfaatkan sebagai starter pada produksi fermentasi produk hasil perikanan. Penelitian ini adalah penelitian pertama terkait isolasi bakteri asam laktat yang menghasilkan protease dan bakteriosin dari saluran pencernaan dari kepiting bakau.Kata kunci: Bakteri Asam Laktat, Bakteriosin-like substance, Protease, Scylla  sp. Digestive tract is complex environment consist of large amount of bacteria’s species. Fish intestine bacteria consist of aerobic or facultative anaerob bacteria which can produce antibacterial and enzym. The objectives of this research were to isolated lactic acid bacteria that produce bacteriocin-like and protease from mud crab digestive tract. Isolation and characterization of isolates were conducted employing media MRS.  Neutralized cell free supernatant of isolates were tested using disc diffusion agar of against pathogenic and spoilage bacteria to indicate bacteriocin-like-producing lactic acid bacteria. Protease-producing isolate was tested using disc diffusion method in casein agar. Among a hundred isolates, 96 isolates were showed clear zone in MRS+CaCO3,, catalase negative, and Gram positive bacteria. Thirty four isolates produced protease and only four isolates (i.e. IKP29, IKP30, IKP52, and IKP94) showed strong inhibition against pathogenic and spoilage bacteria. There were three patterns of inhibition among three isolates against Bacillus subtilis, Staphylococcus aureus, Eschericia coli, and Salmonella sp. All three isolates showed potential uses for produce starter culture for fishery product fermentation purpose. This is the first report of isolation lactic acid bacteria that produced protease and bacteriocin-like from digestive tract of mud crab. Keywords: Lactic acid bacteria, Bacteriocin-like substance, Protease, Scylla  sp.

scholarly journals ISOLASI DAN AKTIVITAS ANTI MIKROBA BAKTERI ASAM LAKTAT DARI FERMENTASI NIRA KELAPA SAWIT

2018 ◽  
Vol 5 (1) ◽  
pp. 51 ◽  
Author(s):  
Edy Fachrial ◽  
Harmileni Harmileni
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Palm Oil ◽  
Pathogenic Bacteria ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method

<p><em>The aim of the study was to isolate lactic acid bacteria (LAB) from palm oil sap and to investigate the anti microbial activity of LAB against pathogen bacteria, Staphylococcus aureus and Escherichia coli using disc diffusion method. Palm oil sap were enriched using spesific medium MRS (Man Rogosa Sharpe) broth overnight, serial dilution were conducted and the culture were spread on the surface of MRS agar and then incubated for 48 hours. The result showed the total colonies of LAB were 1,4 x 107 CFU/mL. 6 colonies were randomly selected namely EHN1, EHN2, EHN3, EHN4, EHN5 and EHN6. The selected colonies are classified as Gram positive and bacilli in morphology. Antimicrobial activity against pathogenic bacteria was investigated using disc diffusion method. Antimicrobial activity of isolates against E.coli and S.aureus were 12,2 mm; 9mm; 11mm; 11mm; 10,5mm; 12 mm dan 13,5mm; 11mm; 12mm; 11,5mm; 12mm; 12,5mm respectively. from these result it can be concluded that LAB isolated from oil palm sap has potential as probiotic.</em></p>

scholarly journals Uji Aktivitas Antibakteri Ekstrak Etanol Daun Pare (Momordica charantia L.) Terhadap Bakteri Staphylococcus aureus ATCC 25923

2021 ◽  
Vol 1 ◽  
pp. 1598-1604
Author(s):  
Kholila Rizqiana ◽  
Dwi Bagus Pambudi
Keyword(s):  
Staphylococcus Aureus ◽  
Leaf Extract ◽  
Momordica Charantia ◽  
Diffusion Method ◽  
Bitter Melon ◽  
Disc Diffusion ◽  
Clear Zone ◽  
Disc Diffusion Method ◽  
Chemical Content ◽  
Inhibitory Power

AbstractBitter gourd as a traditional medicine has a chemical content in its leaves that are useful as antimicrobials and as antioxidants. According to research by Tessa Undap, 2017 shows that bitter melon leaves have an inhibitory power against the growth of Staphylococcus aureus bacteria by inhibiting protein synthesis. The purpose of this study was to determine the antibacterial activity of bitter melon leaf extract (Momordica charantia L.). The research method used in this study is the disc diffusion method. Data was collected by measuring the diameter of the clear zone formed in each treatment. The antibacterial results showed that the 9% extract concentration had the highest inhibitory power.Keywords: Antibacterial, Pare Leaf Extract, Granules, Staphylococcus aureus. AbstrakTanaman pare sebagai obat tradisional memiliki kandungan kimia dalam daunnya yang bermanfaat sebagai antimikroba dan sebagai antioksidan. Menurut penelitian oleh Tessa Undap, 2017 menunjukkan bahwa daun pare mempunyai daya hambat terhadap pertumbuhan bakteri Staphylococcus aureus dengan cara menghambat sintesis protein. Adanya kandungan flavonoid dalam daun pare dapat menghambat pertumbuhan bakteri Staphylococcus aureus yang dapat mengkoagulasi protein pada sel bakteri. Tujuan dari penelitian ini yaitu untuk mengetahui aktivitas antibakteri yang terkandung dalam ekstrak daun pare (Momordica charantia L.). Metode penelitian yang digunakan dalam penelitian ini yaitu metode difusi cakram disk. Pengumpulan data dilakukan dengan cara mengukur diameter zona bening yang terbentuk pada setiap perlakuan. Hasil antibakteri yaitu menunjukkan bahwa konsentrasi ekstrak 9% mempunyai daya hambat paling tinggi.Kata kunci: Antibakteri, Ekstrak Daun Pare, Granul, Staphylococcus aureus.

scholarly journals Isolasi Bakteri Asam Laktat dari Usus Sapi (Bos taurus) serta Kemampuannya dalam Menghambat Pertumbuhan Bakteri Eschericia coli dan Shigella sp

2019 ◽  
Vol 1 (1) ◽  
pp. 21-27
Author(s):  
Lulu Fatma Dewi ◽  
Sartini Sartini ◽  
Rahmiati Rahmiati
Keyword(s):  
Escherichia Coli ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Bos Taurus ◽  
Inhibition Zone ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Positive Results ◽  
Paper Disc

The purpose of this research was to determine the ability of BAL from cattle intestine (Bos taurus) in inhibiting the growth of Eschericia coli and Shigella sp. Testing of BAL capability in inhibiting growth of Escherichia coli and Shigella sp. using the disc-diffusion method or the Kirby-Bauer method, which was done by measuring the inhibit zone around the paper disc. Data were analyzed descriptively by displaying data in table and picture form. The results obtained 2 isolates of BAL from the cow intestine. All isolates showed positive results when tested for antibacterial against Escherichia coli and Shigella sp. In isolate BAL with code sp1 has inhibition zone against Escherichia coli equal to 7.5 mm and to Shigella sp. of 6.8 mm, whereas in isolate BAL with code sp2 has inhibition zone against Escherichia coli equal to 8.9 mm and to Shigella sp. of 8.0 mm. Based on the results obtained, it can be concluded that isolates of lactic acid bacteria with sp2 code has inhibition zone 8.9 mm in inhibiting Eschericia coli while against bacteria Shigella sp. has a diameter of 8.0 mm.

scholarly journals Interpretive criteria to differentiate low- and high-level mupirocin resistance in Staphylococcus aureus

2007 ◽  
Vol 56 (7) ◽  
pp. 937-939 ◽  
Author(s):  
Naira Elane Moreira de Oliveira ◽  
Ana Paula Couto Marques Cardozo ◽  
Elizabeth de Andrade Marques ◽  
Kátia Regina Netto dos Santos ◽  
Marcia Giambiagi deMarval
Keyword(s):  
Staphylococcus Aureus ◽  
High Resistance ◽  
The Other ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Zone Diameter ◽  
Resistant Strains ◽  
Mupirocin Resistance ◽  
High Level

Meticillin-resistant Staphylococcus aureus isolates were classified into three mupirocin susceptibility groups by the disc diffusion method using 5 and 200 μg mupirocin discs. The zone diameter observed for a 5 μg disc distinguished MupS from the resistant strains (either MupRL or MupRH). On the other hand, a 200 μg disc distinguished the high-resistance MupRH strains from the other two (MupS or MupRL). Thus, the concomitant use of 5 and 200 μg mupirocin discs allowed the clear distinction among the three mupirocin susceptibility groups, MupS, MupRL or MupRH.

scholarly journals Screening of the antimicrobial activity of marine sponge extracts from Martinique

2021 ◽  
Author(s):  
Julie Piron ◽  
Jessica Pastour ◽  
Niklas Tysklind ◽  
Juliette Smith-Ravin ◽  
Fabienne Priam
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Inhibitory Concentration ◽  
Minimum Bactericidal Concentration ◽  
Marine Sponges ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Bacterial Strains ◽  
Disc Diffusion Method ◽  
Staphylococcus Saprophyticus

AbstractMarine sponges are known for their antimicrobial, antifungal, and cytotoxic activity. In this study, the activity of aqueous and ethanoic extracts of 3 sponges from Martinique were tested on 5 bacterial strains: Bascillus cereus (CIP 783), Echerichia coli (CIP 54127), Pseudomonas aeruginosa (CIP A22), Staphylococcus aureus (CIP 67.8) and Staphylococcus saprophyticus (CIP 76125). The antimicrobial activity of Agelas clathrodes, Desmapsamma anchorata, and Verongula rigida, was demonstrated using the disc diffusion method and by determining the minimum inhibitory concentration and the minimum bactericidal concentration. The ethanoic extract of Agelas clathrodes had an inhibitory activity specifically on Staphylococcus aureus and Staphylococcus saprophyticus. No activity was observed for the other extracts. Further chemical analyses will be carried out in order to identify the active molecules of these sponges.

scholarly journals Isolation, Characterization and Antibacterial Activity of Ergosta-5, 7, 22-triene-3β, 14α – diol (22Z) from Kenyan Ganoderma lucidum

2020 ◽  
pp. 48-57
Author(s):  
Ebrahim Sande ◽  
Danstone Lilechi Baraza ◽  
Selline Ooko ◽  
Peter Kuloba Nyongesa
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Streptococcus Pyogenes ◽  
Ganoderma Lucidum ◽  
Methicillin Resistance ◽  
Hexane Extract ◽  
Diffusion Method ◽  
Significant Activity ◽  
Disc Diffusion ◽  
Disc Diffusion Method

Aims: To determine the chemical composition and antibacterial activity of Kenyan Ganoderma lucidum. Study Design: Structural determination of the isolated compound was done using spectral evidences and in comparison with literature. The antibacterial properties of the compound was done using disc diffusion method. Place and Duration of Study: Department of Pure and Applied Chemistry, Masinde Muliro University of Science and Technology, between January and November, 2019. Methodology: Sequential extraction of dried samples of Kenyan G. lucidum were done using solvents hexane, ethyl acetate and methanol. Chromatographic separation of hexane extract of Ganoderma lucidum was done using spectroscopic data. The compound was assayed against Escherichia coli, Klebsiella pneumoniae, Methicillin–Resistant Staphylococcus aureus (MRSA), Pseudomonas aeruginosa and Streptococcus pyogenes. Standard antibiotic namely; ampicillin was used as the control. Disc diffusion method was used and zones of inhibition, after respective incubation periods, were used to quantify antibacterial activity. Results: From hexane extract of Ganoderma lucidum, Ergosta-5, 7, 22-triene-3β, 14α – diol (22Z) was isolated. Ethylacetate and methanol extracts produced a mixture of complex compounds. Ergosta-5,7,22-triene-3β,14α-diol (22Z) exhibited significant activity against Methicillin-Resistance Staphylococcus aureus (MRSA) (p=0.022) and Streptococcus pyogenes (p = 0.05). The most sensitive microbe was Streptococcus pyogenes. Conclusion: One major compound, Ergosta-5, 7, 22-triene-3β, 14α – diol (22Z) was isolated, characterized and antibacterial activity determined.

scholarly journals Antimicrobial Activity of some Honey Samples against Pathogenic Bacteria

2015 ◽  
Vol 34 ◽  
pp. 15-20 ◽  
Author(s):  
S. Mahendran ◽  
D. Kumarasamy
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Antibacterial Activity ◽  
Streptococcus Pyogenes ◽  
Western Ghats ◽  
Pathogenic Bacteria ◽  
Research Work ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method

The aim of the present research work to investigate antimicrobial activity of some honey samples six winter honeys six summer honeys collected from different regions of Western Ghats. The microbes used in this study are Staphylococcus aureus, Streptococcus pyogenes, Escherichia coli, Pseudomonas aeruginosa, and Proteus mirabilis. Antibacterial activity of the honeys was assayed using the Disc diffusion method. Noticeable variations in the antibacterial activity of the different honey samples were observed. Among the microbes Staphylococcus aureus is the most sensitive against all honey samples shows the maximum inhibitor zone compare to summer honeys.

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