scholarly journals ISOLASI DAN UJI ANTIBAKTERI DARI BAKTERI YANG BERASOSIASI DENGAN SPONS Phyllospongia lamellose SERTA IDENTIFIKASI SECARA BIOKIMIA

PHARMACON ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 252
Author(s):  
Sela S Lempoy ◽  
Widya A Lolo ◽  
Paulina V. Y. Yamlean

ABSTRACT Sponges are one source of producing bioactive components from the sea. Bacteria Symbiosis with sponges are thought to have the potential to produce bioactive compounds that have been isolated from sponges. One of the potential of bioactive compounds which have been found and developed from sponges was antibacterial. The aim of this study was to determine the antibacterial activity of bacteria associated with Phyllospongia lamellose sponges against pathogenic bacteria namely Staphylococcus aureus and Esherichia coli and then proceed with identification of biochemistry in isolates which showed the greatest inhibitory activity. Three isolates of sponges symbiont bacteria were obtained through the isolation and purification stage which were then followed by testing of antibacterial activity with paper disk diffusion method. The antibacterial test results showed the diameter of the inhibitory zone against Staphylococcus aureus, were: SL1(8.67 mm), SL2 (9.33 mm) and SL3(9.00 mm) categorized as medium. Whereas the inhibiotion zone shown on Esherichia coli bacteria is also classified as medium, were: SL1(9.67 mm), SL2 (9.00 mm) and SL3 (9.33 mm). The three isolates continued to the identification stage biochemically. Each isolation was assumed as follows: Desulfotomaculum (SL1), Brochothrix (SL2) and Sulfidobacillus (SL3). Keyword         :Phyllospongia lamellose, isolation, biochemically identification ABSTRAK Spons merupakan salah satu sumber penghasil komponen bioaktif yang berasal dari laut. Bakteri yang bersimbiosis dengan spons diduga memiliki potensi dalam menghasilkan senyawa-senyawa bioaktif yang telah diisolasi dari spons. Potensi senyawa bioaktif yang telah ditemukan dan dikembangkan dari spons salah satunya ialah sebagai antibakteri. Penelitian ini bertujuan untuk mengetahui aktivitas antibakteri dari bakteri yang berasosiasi dengan spons Phyllospongia lamellose terhadap bakteri patogen yakni Staphylococcus aureus dan Escherichia coli dan kemudian dilanjutkan dengan identifikasi secara biokimia pada isolat yang menunjukkan daya hambat terbesar. Diperoleh 3 isolat bakteri simbion spons melalui tahap isolasi dan purifikasi yang kemudian dilanjutkan dengan pengujian aktivitas antibakteri melalui metode difusi kertas cakram. Hasil uji antibakteri menunjukkan diameter zona hambat terhadap bakteri Staphylococcus aureus yaitu: SL1(8.67 mm), SL2(9.33 mm) dan SL3 (9.00 mm) termasuk dalam kategori sedang. Sedangkan zona hambat yang ditunjukkan terhadap bakteri Escherichia coli juga tergolong kategori sedang yaitu: SL1(9.67 mm), SL2(9.00 mm) dan SL3 (9.33 mm). Ketiga isolat dilanjutkan ke tahap identifikasi secara biokimia. Masing-masing isolat diduga sebagai berikut: Desulfotomaculum (SL1), Brochothrix (SL2) dan Sulfidobacillus (SL3). Kata kunci          :Phyllospongia lamellose, isolasi, identifikasi biokimia.

2015 ◽  
Vol 3 (1) ◽  
pp. 90
Author(s):  
M. Taufik Ekaprasada ◽  
Hazli Nurdin ◽  
Sanusi Ibrahim ◽  
Dachriyanus

 ABSTRACT The essential oil composition of the Toona sureni (Blume) Merr leaf was analyzed by GC-MS. More than 68 peaks, representing 99.99% of total oil, forty three components were identified, this represents 80.65% of the total oil component. The major components were α-terpinene (9.58%), α-copaene (8.39%), bicyclogermacrene (7.61%), δ-cadinene (6.65%), β-elemene (4.88%), germacrene-D (4.65%), δ-selinene (3.58%), caralene (3.10%), β-caryophyllene (2.88%), α-cubebene (2.82%), δ-gurjunene (2.20%), and (-)-isoledene (2.05%). The antibacterial activity of the essential oil of Toona sureni (Blume) Merr leaf was evaluated using disk diffusion method. The oil was effective on the inactivation of Escherichia coli, Staphylococcus aureus and Bacillus subtilis. Keywords: Toona sureni (Blume) Merr, antibacterial activity, GC-MS, essential oil


Author(s):  
ZAMHARIRA MUSLIM ◽  
YONANIKO DEPHINTO

Objective: This research aims to analyze the ability of robusta coffee leaves fraction extract to inhibit the growth of Staphylococcus aureus and Escherichia coli and also determine the minimum inhibitory concentration (MIC). Methods: Antibacterial activity evaluated by the disc diffusion method observed in four types of fraction of extract robusta coffee leaves (n-hexane, ethyl acetate, ethanol, and water). Each extract divided into three various concentrations, 5%, 10%, and 15%. Determination of antimicrobial activity in vitro by the disk diffusion method. Results: Ethyl acetate fraction of coffee leaves extract produced the largest diameter zone of inhibition of bacterial growth compared to other extraction fractions of 17.28 mm in E. coli and 18.58 mm in S. aureus. The MIC of coffee leaves extract fraction water, ethyl acetate, and n-hexane on E. coli and S. aureus is 5%, while the fraction ethanol MIC is 10%. Conclusion: The antibacterial effect of ethyl acetate fraction of coffee leaves extract showed an antibacterial effect that was better than the fraction of n-hexane, ethanol, and water.


PHARMACON ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 351
Author(s):  
Cicilia Kosasi ◽  
Widya A. Lolo ◽  
Sri Sudewi

ABSTRACT Algae are a place to live for various microorganisms’ symbiosis with them, and some of them were known to be used as antibacterial. This study aims to determine the antibacterial activity of associated bacteria isolates from Turbinaria ornata algae obtained from the Bay of Manado against Staphylococcus aureus and Escherichia coli bacteria. In the course of testing the isolation and purification of symbiotic bacteria from Turbinaria ornata algae, then antibacterial activity was testing using agar diffusion method, then gram staining and biochemical tests were carried out including motility test,  tets, carbohydrate fermentation test, citrate test, lysine test, indole test and catalase test. The result showed  that there were 3 bacterial isolates, which had antibacterial activity in medium category against S.aureus and E.coli bacteria. Based on the results of biochemical identification, the isolates that have the greatest inhibitory power, they were thought to belong to genus Bacillus and the genus Yersinia.Keywords : Antibacterial, Symbionic bacteria, Turbinaria ornata (Turner) J.   Agardh. ABSTRAK Alga merupakan tempat hidup berbagai mikroorganisme yang bersimbiosis dengannya, dan beberapa dari spesies alga diketahui sering dimanfaatkan salah satunya  sebagai antibakteri. Penelitian ini bertujuan untuk mengetahui adanya aktivitas antibakteri dari isolat bakteri yang berasosiasi dengan alga Turbinaria ornata yang diperoleh dari Teluk Manado terhadap bakteri  Staphylococcus aureus dan Escherichia coli. Dalam pengujian dilakukan isolasi dan purfifikasi bakteri simbion dari alga Turbinari ornata, kemudian dilakukan pengujian aktivitas antibakteri menggunakan metode difusi agar, selanjutnya silakukan pewarnaan gram dan uji biokimia meliputi uji motilitas, uji H2S, uji fermentasi karbohidrat, uji sitrat, uji lisin, uji indol dan uji katalase. Hasil penelitian menunjukkan bahwa terdapat 3 isolat bakteri yang mempunyai daya aktivitas antibakteri dalam kategori sedang terhadap bakteri S. aureus dan E. coli. Berdasarkan hasil identifikasi secara biokimia isolat yang mempunyai daya hambat paling besar diduga termasuk dalam genus Bacillus dan genus Yersinia. Kata kunci : Antibakteri, Bakteri simbion, Turbinaria ornata (Turner) J. Agardh.


Author(s):  
Julia Nanda Puspita ◽  
Rikhsan Kurniatuhadi ◽  
Rahmawati Rahmawati

Bacteria of the genus Thermoactinomyces have the ability to produce antibacterial bioactive compounds. This bioactive compound can be used for combating diarrheal agents such as Escherichia coli and Staphylococcus aureus. This study aims to determine the antibacterial activity of the metabolite extract from Thermoactinomyces sp. (H24) against Escherichia coli and Staphylococcus aureus. Methanol was used as a solvent for the extraction of bacterial bioactive compounds. Antibacterial activity was analyzed by the diffusion method with several extract concentrations (0.75 mL, 1.5 mL, 2.25 mL, and 3 mL), 10% DMSO as the negative control, and ciprofloxacin as the positive control. Our result shows that Termoactinomyces sp. (H24) extract has an inhibitory effect on the growth of  E. coli and S. aureus with an effective concentration of 2.25 mL (inhibition strength: very strong).


2018 ◽  
Vol 6 ◽  
pp. 24-27
Author(s):  
Pramod Kumar Yadav

Two azo-compounds, azobenzene-4, 4′-dicarboxylic acid 1 and 4-(2-hydroxy-naphthalen-1-ylazo)-benzoic acid 2 were synthesized for study of their antibacterial activity. Structures of the two compounds were confirmed by NMR, IR and elemental analysis. Antibacterial activity of the compounds was tested by disk diffusion method against the bacteria strains Staphylococcus aureus and Escherichia coli. The compound 1 was moderately active while 2 was highly active against all the bacteria species tested.Academic Voices Vol.6 2016: 24-27


2014 ◽  
Vol 19 (1) ◽  
Author(s):  
Ekawati Purwijantiningsih

AbstractFermented milk products could be found on the marketplace in great quantities of brand and type. Fermented milk has potentials for functional food because it has health benefits for human body and acts as antimicrobial. However from all brands and types, the viability of lactic acid bacteria (LAB) and antibacterial activity is not surely known, especially in Yogyakarta. The aim of this study was to determine the viability of lactic acid bacteria and antibacterial effect to three enteric pathogenic bacteria. Tests were carried out on 18 samples of fermented milk from supermarkets in Yogyakarta. Base on LAB viability test, 12 samples fulfilled the concentration of probiotic bacteria, number of viable bacteria at least 108 CFU/ml. Antibacterial activity from 18 brands against Staphylococcus aureus, Escherichia coli and Salmonella sp. by using well diffusion method. Fermented milk products have different antibacterial activities. Brand R showed the maximum antibacterial effect against the pathogens. It was determined that the most sensitive pathogenic bacteria to milk fermented products were S. aureus, whereas the least sensitive pathogen was Salmonella sp.Keywords: Antibacterial, fermented milk, viability of lactic acid bacteriaAbstrakProduk susu fermentasi dapat ditemukan di pasaran dalam berbagai merk dan jenis. Susu fermentasi tersebut berpotensi sebagai pangan fungsional karena memiliki manfaat kesehatan bagi manusia dan berperan sebagai antimikrobia. Akan tetapi dari berbagai merk dan jenis yang ada belum diketahui secara pasti mengenai viabilitas bakteri asam laktat (BAL) dan aktivitas antibakterinya terutama yang beredar di wilayah Yogyakarta. Penelitian ini bertujuan mengetahui viabilitas BAL dan efek antibakteri terhadap tiga bakteri patogen enterik. Uji dilakukan pada 18 sampel susu fermentasi yang berasal dari supermaket di kota Yogyakarta. Berdasarkan uji viabilitas BAL, ada 12 sampel yang memenuhi standar konsentrasi bakteri probiotik,paling tidak mengandung 108 CFU/ml. Aktivitas antibakteri dari 18 merk diuji terhadap Staphylococcus aureus, Escherichia coli dan Salmonella sp. menggunakan metode difusi sumuran. Produk minuman susu fermentasi memiliki kemampuan antibakteri yang berbeda. Merk R menunjukkan efek antibakteri paling tinggi terhadap beberapa bakteri patogen. Bakteri patogen yang paling sensitif terhadap produk susu fermentasi adalah S. aureus, yang paling tidak sensitif adalah Salmonella sp.Kata kunci: Antibakteri, susu fermentasi, viabilitas BAL


2019 ◽  
Author(s):  
KINDU GETA

Abstract Background: Infectious diseases caused by bacteria have a large impact on public health. Increasing in resistant microbial infections intensified the search for new, safer, and more efficacious agents to combat serious microbial infections. Plants have played a central part in combating many diseases in human and domestic animal in many local communities, including Africa. Rhamnus prinoides is Ethiopian medicinal plants that have been used traditionally for the treatment of diverse infectious diseases. Therefore, this research was carried out to evaluate antibacterial activity Rhamnus prinoides extracts against pathogenic bacteria. Methods: The antimicrobial activity tests were carried out by the agar well diffusion method. Broth dilution and streak plate methods were used to determine MIC and MBC of extracts respectively. Results: The results revealed that ethanol extracts of fruits showed the highest antibacterial activity against standard strains of S.aureus with mean inhibition zone of 26±0.58, 28.33±1.2 and 33.33±0.9mm at 25, 50 and 100mg/ml respectively. The lowest mean MIC value (1.04 mg/ml) was recorded with ethanol extract of fruits against standard strains of S. aureus and the lowest mean MBC value (2.08 mg/ml) was recorded with ethanol extract of fruits against standard strains and clinical isolates of S. aureu. Conclusion: On the basis of the current findings, Rhamnus prinoides could be a good candidate in the search for new antibacterial agents from natural products against bacterial pathogens. Therefore, further studies are needed to study their toxicology and isolate the bio- active components from this plant. Key words: Antibacterial activity, Escherichia coli, MBC, MIC, Rhamnus prinoides, Staphylococcus aureus


Author(s):  
Bindu D ◽  
Vinoth Kumar T ◽  
Geetharamani D

Objective: Marine sponges are a rich source of new antimicrobial drugs. The present study was aimed to evaluate the antibacterial activity of the marine sponge (Callyspongia diffusa) against human pathogenic bacteria and to analyze the presence of bioactive compounds in the sponge.Methods: Antibacterial activity of the marine sponge C. diffuser was examined using petroleum ether, chloroform, n-butanol, methanol, ethanol, and water as solvents and tested against human pathogenic bacteria such as Esherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus by agar well diffusion method. Zoochemical analysis was performed to screen for the presence of secondary metabolites. Bioactive compounds were purified by thin layer chromatography (TLC) and were identified by gas chromatography-mass spectrometry (GC-MS) analysis.Results: The results obtained show that the sponge extracts had significant antibacterial activity against the tested strains. The methanol extract was found to be the most effective and exhibited the highest potency against all pathogens tested. Zoochemical analysis revealed the presence of alkaloids, terpenoids, and sterols. In TLC, spots corresponding to a Rf value of 0.67 were found to possess antibacterial activity against the test bacteria. GC-MS chromatogram showed seven major peaks at retention time of 12.69, 13.81, 24.21, 24.65, 28.01, 28.93, 30.87 minutes. The mass of the compounds and fragments were matched with the National Institute of Standard and Technology (NIST) database for identification of probable compounds present in the sample. GC-MS analysis revealed the presence of bioactive compounds in the sponge.Conclusion: This study confirms the marine natural species provides an excellent source of bioactive metabolites that can exploit to develop novel and potential therapeutic agents.


Author(s):  
Bindu D ◽  
Vinoth Kumar T ◽  
Geetharamani D

Objective: Marine sponges are a rich source of new antimicrobial drugs. The present study was aimed to evaluate the antibacterial activity of the marine sponge (Callyspongia diffusa) against human pathogenic bacteria and to analyze the presence of bioactive compounds in the sponge.Methods: Antibacterial activity of the marine sponge C. diffuser was examined using petroleum ether, chloroform, n-butanol, methanol, ethanol, and water as solvents and tested against human pathogenic bacteria such as Esherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus by agar well diffusion method. Zoochemical analysis was performed to screen for the presence of secondary metabolites. Bioactive compounds were purified by thin layer chromatography (TLC) and were identified by gas chromatography-mass spectrometry (GC-MS) analysis.Results: The results obtained show that the sponge extracts had significant antibacterial activity against the tested strains. The methanol extract was found to be the most effective and exhibited the highest potency against all pathogens tested. Zoochemical analysis revealed the presence of alkaloids, terpenoids, and sterols. In TLC, spots corresponding to a Rf value of 0.67 were found to possess antibacterial activity against the test bacteria. GC-MS chromatogram showed seven major peaks at retention time of 12.69, 13.81, 24.21, 24.65, 28.01, 28.93, 30.87 minutes. The mass of the compounds and fragments were matched with the National Institute of Standard and Technology (NIST) database for identification of probable compounds present in the sample. GC-MS analysis revealed the presence of bioactive compounds in the sponge.Conclusion: This study confirms the marine natural species provides an excellent source of bioactive metabolites that can exploit to develop novel and potential therapeutic agents.


2020 ◽  
Vol 2 (2) ◽  
pp. 49-54
Author(s):  
Kasta Gurning ◽  
Dameria Siahaan ◽  
Iksen Iksen

Jackfruit leaves (Artocarpus heterophyllus Lamk.) have health benefits as an antimicrobial. The leaves contain flavonoids, tannins, saponins which act as antimicrobials. The purpose of this study was to study the potential antibacterial activity of ethanol extract of jackfruit leaves (Artocarpus heterophyllus Lamk.) On the bacteria Staphylococcus aureus, Escherichia coli, Staphylococcus epidermidis, and Salmonella typhi. This research conducted with an experimental method that included the collection and processing of samples, the examination of the simplicia characterization and phytochemical screening. The concentration of jackfruit leaf ethanol extract. Used was at a concentration of 500 mg mL, 400 mg/mL, 300 mg/mL, 200 mg/mL, 100 mg/mL, 100 mg/mL, 50 mg/mL , 25 mg/mL, 10 mg/mL 30 mg/ml chloramphenicol and blanks. Using the disk diffusion method to measure the clear zone against the bacteria Staphylococcus aureus, Escherichia coli, Staphylococcus epidermidis, and Salmonella typhi. Antimicrobial inhibition of ethanol extract of jackfruit leaves against Staphylococcus aureus bacteria at a concentration of 500 mg/mL has a strong antibacterial inhibition with a diameter of 10.8 mm. The bacteria Escherichia coli, Staphylococcus epidermidis, and Salmonella typhi at a concentration of 500 mg/mL have inhibitory power, 9.2 mm, 9.6 mm, and 8.8 mm in the medium category. Positive control chloramphenicol has powerful antibacterial inhibition with an inhibition zone diameter of 28.6 mm.


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