UJI AKTIVITAS ANTIBAKTERI EKSTRAK ETANOL DAUN KEREHAU (Callicarpa longifolia Lam) TERHADAP Escherichia coli dan Staphylococcus aureus

2017 ◽  
Vol 2 (2) ◽  
pp. 166
Author(s):  
Eko Kusumawati ◽  
Anita Apriliana ◽  
Khusnul Khatimah

Kerehau (Callicarpa longifolia Lam) is a plant that has traditionally efficacious as a cure colds and diarrhea. Part used as medicine are the leaves. This study aims to determine the antibacterial activity of ethanol extract of leaves kerehau on Escherichia coli and Staphylococcus aureus. Kerehau leaf extract prepared by maceration method using ethanol 70%, with a test concentration of 10%, 25%, 50%, and 100% and chloramphenicol 0.1% (w / v) as a positive control and dimethyl sulfoxide 1% (v / v) as a negative control. The results of antibacterial activity test with extract concentrations of 25%, 50% and 100% in Escherichia coli is 9.45 mm, 12.21 mm and 17.38 mm, for the positive control is 21.85 mm. The results of antibacterial activity test with extract concentrations of 10%, 25%, 50% and 100% in Staphylococcus aureus was 7.3 mm, 9.85 mm, 13.65 mm and 20.58 mm, for the positive control was 24.05 mm. The antibacterial activity was analyzed by One Way ANOVA showed significant differences between treatments

Biocelebes ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 90-97
Author(s):  
Gaby Maulida Nurdin

This study aimed to determine the effect of concentration ethanol extract from tembelakan leaf (Lantana camara Linn)  on bacteria growth of Staphylococcus aureus and Escherichia coli. Extraction was done by maceration using ethanol 96% and then separated using rotary evaporator. Antibacterial activity test of the ethanol extract by Well agar diffusion method. Variation in crude extract saponin used in this study was 5%, 10%, 15%, 20%, 25% and positive controls were used for comparison with Amoxicilin and Chloramphenicole concentration of 25 µg/mL and DMSO as a negative control. The results of antibacterial activity test is indicated by the formation of growth inhibitory region S. aureus and E. coli. The result of growth inhibitory regions was analyzed by One way ANOVA. One way ANOVA test results indicate that there are effects of ethanol extract concentration of tembelekan leaf (L. camara Linn) against S. aureus and E. coli. Effective concentration of ethanol extract tembelekan leaf (L. camara Linn) when compared with positive control to inhibit the growth of S. aureus and E. coli is at 25% with a relatively strong antibacterial activity. Test with phytochemicals screening method which is showed that tembelekan leaf contains the flavanoid, saponins, and tannins compounds as antibacterial


PHARMACON ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 114
Author(s):  
Lyone Katiandagho ◽  
Defny S Wewengkang ◽  
Sri Sudewi

ABSTRACT Soft Coral Sinularia sp.has been shown to have antibacterial activity. This research aims to determine the antibacterial activity of marine  organisms obtained from Manado bay. The method in this study is the diffusion method with positive control chloramphenicol and negative control of methanol in Escerichia coli and Sthaphylococcus aureus. The result showed that extracts, chloroform fraction and methanol-water fraction were obtained inhibiting category of Sthapylococcus aureus bacteria, but in the chloroform fraction and ethanol extract can inhibit Escerichia coli bacteria categorized as strong. With it can be conlueded that the extract and fraction of soft Sinularia sp. have bioactive compounds with a broth spectrum of antibacterial activity.Keywords: Sinularia sp., Chloramphenicol, Escerichia coli, Sthaphylococcus aureus, and antibacterial. ABSTRAK Karang lunak Sinularia sp. telah terbukti memiliki aktivitas antibakteri. Penelitian ini bertujuan untuk mengetahui aktivitas antibakteri pada organisme biota laut yang diperoleh dari teluk Manado. Metode dalam penelitian ini adalah metode difusi agar dengan kontrol positif kloramfenikol dan kontrol negatit metanol pada Escherichia coli dan Staphylococcus aureus. Hasil penelitian menunjukkan bahwa ekstrak, fraksi kloroform, dan fraksi metanol-air dapat menghambat bakteri Staphylococcus aereus dikategorikan sedang, namun pada fraksi kloroform dan ekstrak etanol dapat menghambat bakteri Escerichia coli dikategorikan kuat. Dengan demikian dapat disimpulkan bahwa ekstrak dan fraksi karang lunak Sinularia sp.memiliki senyawa bioaktif dengan spektrum yang luas terhadap aktivitas antibakteri.Kata kunci: Sinularia sp, Kloramfenikol, Escherichia coli, Staphylococcus aureus, dan antibakteri


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).


PHARMACON ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 818
Author(s):  
Albrita Pehino ◽  
Fatimawali Fatimawali ◽  
Elly J. Suoth

ABSTRACT Duku (Lansium domesticum) provides many benefits for the community. Apart from the fruit which has high nutritional value, duku is believed by the community to have benefits. The study aims to learn about the antibacterial extract of my seed against the staphylococus aureus and escherichia coli. This study used the meseration method with ethanol as a solvent. The antibacterial activity test used the well diffusion method with a concentration of 10%, 20%, 30%, 40%. The positive control used was Ciprofloxacin and the negative control used was the CMC solution. Studies show that the suppression of extract is 10%, 20%, 30%, and 40% staphylococus aureus, the average drip zone is 11.3mm, 13.3mm, 13.6mm, 11,3mm, and escherichia coli, on average, 10 mm,  9,3mm, 10,3mm, 12,6 mm. The results suggest that the extract of the duku fruit has antibacterial activity against the growth of the staphylococcus aureus and escherichia coli. Keywords: Duku seed, Antibacterial, Antibacterial activity ABSTRAK Duku (Lansium domesticum) banyak memberikan manfaat bagi masyarakat. Selain buahnya yang mempunyai nilai gizi tinggi, duku dipercaya masyarakat memiliki manfaat untuk kesehatan. Penelitian ini bertujuan untuk mengetahui aktivitas antibakteri ekstrak biji duku terhadap bakteri staphylococus aureus  dan Escherichia coli. Penelitian ini menggunakan metode maserasi dengan pelarut etanol. Uji aktivitas antibakteri menggunakan metode difusi sumuran  dengan konsentrasi 10%, 20%, 30%, 40%. Kontrol positif yang digunakan adalah  Ciprofloxacin dan kontrol negatif yang digunakan adalah larutan CMC.  Hasil penelitian menunjukan bahwa daya hambat ekstrak dengan konsentrasi 10%, 20%, 30%, dan 40% Staphylococcus aureus rata-rata  zona beningnya 11,3mm, 13,3mm, 13,6mm, 11,3mm, dan Escherichia coli rata-rata  zona beningnya 10 mm, 9,3mm, 10,3mm, 12,6 mm. Dari hasil yang didapatkan  disimpulkan bahwa ekstrak biji buah duku memiliki aktivitas antibakteri terhadap pertumbuhan bakteri Staphylococcus aureus dan Escherichia coli. Kata Kunci:Biji buah duku, Antibakteri, Aktivitas antibakteri


2019 ◽  
Vol 2 (1) ◽  
pp. 14-18
Author(s):  
Firdaus Fahdi ◽  
Harwitavia Harwitavia ◽  
Herviani Sari

The discovery of new antibiotic drugs is getting more and more reactive. The plant of the peria laut leaf is one of the drugs that is often used as a traditional medicine and contains bioactive compounds of polyphenols, flavonoids, and saponins, which can inhibit antibacterial growth. Purpose of this study was to determine the antibacterial activity of ethanol extract of peria laut leaves (Colubrina asiatica L.) against Staphylococcus aureus and Escherichia coli bacteria. Method the experimental, of the sample used was concentrated marine peria laut leaf extract of 25mg/ml, 50mg/ml, 75mg/ml, 100mg/ml, 200mg/ml, 300mg/ml, 400mg/ml, and 500mg/ml, positive control of amoxicillin tablet 500 mg, negative control of dimethylsulfoxide with the method of disc diffusion testing using media Nutrient Agar. Results the showed thet the peria laut leaf extract positively contained bioactive alkaloid compounds, flavonoids, saponins, steroids, and tannins, and had inhibitory effects on Staphylococcus aureus and Escgerichia coli bacteria with various concentrations which had been tested on the average area of the highest inhibition zone of 18,6 mm in Staphylococcus aureus bacteria, and 10,2 mm in Escherichia coli bacteria. Conclusion peria laut leaf extract (Colubrina asiatica L.) has antibacterial activity against Staphylococcus aureus and Escherichia coli bacteria in the most inhibitory zone at a concentration of 500mg/ml with a diameter of 18,6 in Staphylococcus aureus bacteria and 10,2 in Escherichia coli.


2020 ◽  
Vol 15 (2) ◽  
pp. 228
Author(s):  
Nurfiddin Farid ◽  
Nurhikma Nurhikma ◽  
Suhartina Hamzah ◽  
Muhammad Yusuf ◽  
Rahmania Rahmania

Basil leaves (Ocimum sanctum L) Against to inhibit the growth of Escherichia coli and Staphylococcus aureus bacteria to increase its effectiveness, it is made in practical and easy-to-use preparations. One of the effective dosage forms for topical use is Hand Sanitizer. The factor that influences the quality of gel preparations is Carbopol as a gelling agent. To know the antibacterial effect and ethanol extract concentration of basis leaves (Ocimum sanctum L). preparation of Hand sanitizer, in which the selection and type of carbopol concentration will determine the stability of the gel formed. Basil leaf extract was obtained by maceration method using 96% ethanol solvent. The product is formulation in the form a gel Hand sanitizer with the addition of carbopol as a gelling agent with a concentration of 1,5% this type of research is  laboratory Experiment with Stability Test, Organoleptic Test, pH, Homogeneity and Scattering power and Antibacterial Test on Escherichia coli and Staphylococcus aureus. For testing antibacterial activity the method used is the diffusion method. Form the research results obtained antibacterial Hand sanitizer preparations with concentration of 1%, 3% and 5%  showed changes in odor , color and shape before and after storage at pH 4,8- 6,4. Organoleptic  testing showed no changes in odor, color and shape before and after accelerated storage. pH testing shows charges before and after storage are caused by temperature light factors. Homogeneity testing showed no changes before and after storage. Scatter tests indicate changes before and after storage caused by temperature light factors. Antibacterial activity test shows that the formulation of Hand sanitizer ethanol extract of basil leaves (Ocimum sanctum L) with a concentration of 1%, 3% and 5%. can inhibit the growth of Escherichia coli and Staphylococcus aureus with Medium -Strong inhibitory zones. From the results of research conducted it was concluded that the antibacterial Hand sanitizer ethanol of basis was physically and chemically stable for Organiletic, pH, Homogeneity and Scattering effects.


PHARMACON ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 889
Author(s):  
Brigita Michelle Luntungan ◽  
Defny S. Wewengkang ◽  
Erladys Rumondor

ABSTRACTSponges are multi-cell marine biota whose tissue and organ functions are very simple. In the development of medicine, sponges have been shown to contain active compounds as guiding compounds in the synthesis of the latest drugs. The purpose of this study was to determine the antibacterial activity of the extracts and fractions of the sponge Mycale vansoesti collected from the waters of Mantehage Island against Escherichia coli and Staphylococcus aureus bacteria. The sponge samples were extracted using the maceration method with 95% ethanol. The antibacterial activity test used the disc diffusion agar method of Kirby and Bauer. The results showed that Mycale vansoesti sponge produced antibacterial activity in all extracts and fractions used namely ethanol extract, chloroform fraction, n-hexane fraction, and methanol fraction against Escherichia coli and Staphylococcus aureus bacteria with a value of about 6.63-8.82 mm and included in the moderate category of inhibition, this is proven by the formation of a clear zone around the disc. Keywords: Mycale vansoesti, Antibacterial, Staphylococcus aureus, Escherichia coli ABSTRAKSpons merupakan biota laut multi sel yang fungsi jaringan dan organnya sangat sederhana. Dalam perkembangan pengobatan, spons terbukti mengandung senyawa aktif sebagai senyawa pemandu dalam sintesis obat-obatan terbaru. Tujuan dari penelitian ini untuk mengetahui adanya aktivitas antibakteri dari ekstrak dan fraksi spons Mycale vansoesti yang diperoleh dari perairan Pulau Mantehage terhadap bakteri Escherichia coli dan Staphylococcus aureus. Metode ekstraksi yang digunakan adalah maserasi dengan pelarut etanol 95%. Pengujian Aktivitas Antibakteri menggunakan metode difusi agar Kirby and Bauer. Hasil penelitian menunjukkan bahwa spons Mycale vansoesti menghasilkan aktivitas antibakteri pada semua ekstrak dan fraksi yang digunakan yaitu ekstrak etanol, fraksi kloroform, fraksi n-heksan, dan fraksi metanol terhadap bakteri Escherichia coli dan Staphylococcus aureus dengan nilai sekitar 6,63-8,82 mm dan termasuk dalam daya hambat kategori sedang. Hal ini dibuktikan dengan terbentuknya zona bening disekitar cakram. Kata Kunci : Mycale vansoesti, Antibakteri, Staphylococcus aureus, Escherichia coli


2019 ◽  
Vol 12 (2) ◽  
pp. 84
Author(s):  
Liska Hamzah

This research aims to identify the compound group and determine the antibacterial activity of n-hexane, chloroform, and methanol fractions of Artocarpus integer (Thunb.) Merr stem bark. All fractions contain groups of terpenoid and steroid compounds. Antibacterial activity was detemined using agar diffusion method with MHA (Muller Hinton Agar) media on Escherichia coli (gram negative) and Staphylococcus aureus (gram positive). Ciprofloxacin was used as a positive control and methanol as a negative control. The three fractions were able to inhibit the growth of Escherichia coli and Staphylococcus aureus. The chloroform fraction showed the highest activity after 48 hours incubation with inhibition zones of 10.8 and 10.4 mm respectively.


2019 ◽  
Vol 2 (1) ◽  
pp. 19-23
Author(s):  
Firdaus Fahdi ◽  
Harwitavia Harwitavia ◽  
Herviani Sari

The discovery of new antibiotic drugs is getting more and more reactive. The plant of the peria laut leaf is one of the drugs that is often used as a traditional medicine and contains bioactive compounds of polyphenols, flavonoids, and saponins, which can inhibit antibacterial growth. Purpose of this study was to determine the antibacterial activity of ethanol extract of peria laut leaves (Colubrina asiatica L.) against Staphylococcus aureus and Escherichia coli bacteria. Method the experimental, of the sample used was concentrated marine peria laut leaf extract of 25mg/ml, 50mg/ml, 75mg/ml, 100mg/ml, 200mg/ml, 300mg/ml, 400mg/ml, and 500mg/ml, positive control of amoxicillin tablet 500 mg, negative control of dimethylsulfoxide with the method of disc diffusion testing using media Nutrient Agar. Results the showed thet the peria laut leaf extract positively contained bioactive alkaloid compounds, flavonoids, saponins, steroids, and tannins, and had inhibitory effects on Staphylococcus aureus and Escgerichia coli bacteria with various concentrations which had been tested on the average area of the highest inhibition zone of 18,6 mm in Staphylococcus aureus bacteria, and 10,2 mm in Escherichia coli bacteria. Conclusion peria laut leaf extract (Colubrina asiatica L.) has antibacterial activity against Staphylococcus aureus and Escherichia coli bacteria in the most inhibitory zone at a concentration of 500mg/ml with a diameter of 18,6 in Staphylococcus aureus bacteria and 10,2 in Escherichia coli.


2020 ◽  
Vol 6 (2) ◽  
pp. 246
Author(s):  
Yayuk Bulam Sarifati ◽  
Sjarif Ismail ◽  
Khemasili Kosala

Mekai leaves (Pycnarrhena cauliflora Diels.) (P. cauliflora). Are known to contain flavonoid compounds, tannins and phenolics that act as antibacterial agents and are used in the treatment of eye pain. Staphylococcus aureus (S. aureus) is one of the examples of bacterial diseases of eye pain and also a major cause of many infections in communities and health facilities with cases of resistance to various antimicrobial agents. The purpose of this study was to prove the antibacterial activity of mekai leaves ethanol extract against S. aureus bacteria. This research is an experimental research. The stages of this research began by extracting mekai leaves using maceration method with 96% ethanol solvent. Antibacterial activity was tested by the disc method (Kirby-Bauer) using ethanol extract concentrations of mekai leaves (EPC) 20%, 30%, 40%, 50%, 60%, 70%, and 80%, positive control using 25 μg amoxicillin and negative control using DMSO 10%. The measurement results of inhibition zones of mekai leaf ethanol extract 20%, 30%, 40%, 50%, 60%, 70% and 80% respectively were 8.32 mm, 8.32 mm, 8.32 mm, 8.67 mm, 9.00 mm, 8.67 mm, and 8.33 mm. While the positive control measurement of 25 μg amoxicillin against S. aureus is 28.67 mm and the measurement of 10% negative DMSO control does not produce inhibitory zones, so it can be concluded that the ethanol extract of mekai leaves has antibacterial activity, but the area of ​​inhibition zone produced is smaller than amoxicillin 25 µg. The results of statistical tests using Mann Whitney between negative controls with all EPC concentrations obtained significant differences with p values ​​<0.05, it can be concluded that there is antibacterial activity produced at all EPC concentrations.


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