scholarly journals Antibacterial Activity Tests of N-hexane, Ethyl Acetate, and Methanol Leaves (Vitex) Extract (pinnata) against Streptococcus mutans

2020 ◽  
Vol 8 (A) ◽  
pp. 181-184
Author(s):  
Cut A. Nuraskin ◽  
Marlina Marlina ◽  
R. Idroes ◽  
C. Soraya ◽  
Djufri Djufri
Keyword(s):  
Antibacterial Activity ◽  
Ethyl Acetate ◽  
Streptococcus Mutans ◽  
Leaf Extract ◽  
Methanol Extract ◽  
Standardized Test ◽  
Raw Materials ◽  
Animal Health ◽  
Control Group ◽  
Growth Media

BACKGROUND: Vitex pinnata is known as Laban, which is a medicinal plant used traditionally for generations to generations. Laban leaf extract with various concentrations has antibacterial activity. Laban leaf extract is known to inhibit the formation of Streptococcus mutant in human teeth. AIM: To exam, the minimum inhibitory concentration (MIC) and minimum kill concentration (KBM) extract Laban leaves (V. pinnata) as an antibacterial against Streptococcus mutants. METHODS: This research was purely experimental research with design randomized pretest-posttest and control group. The study was conducted at the Laboratory Microbiology Faculty of Animal Health, Syiah Kuala University, Banda Aceh, from March to June 2019. The sample of this study was the Laban leaf from the Aceh Besar geothermal area. This research included preparation raw materials, chemical characterization of raw materials, determination of minimum and maximum components mixture, determining the optimum formula based on the best inhibitory potential, inhibitory testing antibacterial, standardized test, and test (one-way ANOVA). RESULTS: MIC of n-hexane extract showed the results of calculations; the percentage of bacterial inhibition was at a MIC of 1.56% on average colony −1.45 CFU/ml. In ethyl acetate extract, the MIC was 0.20% on the average colony −0.17 CFU/ml. The methanol extract can inhibit bacteria at the smallest concentration of 0.05% average colony −1.48 CFU/ml. Methanol extract inhibits bacteria more quickly. Concentration results minimum kill was 1.56%, 0.78%, 0.39%, 0.20%, 0.10%, and 0.05%. The smallest concentration of extract (n-hexane, ethyl acetate, and methanol) can kill Streptococcus mutans bacteria that are marked in the absence of bacterial colonies on microbiological growth media. CONCLUSION: Extracts of n-hexane, ethyl acetate, and methanol from Laban leaves have inhibitory activity on the growth of S. mutans bacteria. The smallest concentration of extract (n-hexane, ethyl acetate, and methanol) is able to kill S. mutans bacteria.

scholarly journals Aktivitas Antibakteri Ekstrak Daun Turi (Sesbania grandiflora (L.)Press) terhadap Pertumbuhan Bakteri Salmonella thypi dan Streptococcus mutans (Antibacterial Activity of Turi Leaf Extract (Sesbania grandiflora (L.) Press) against Salmonella thypi and Streptococcus mutans)

MEDULA ◽  
2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Arimaswati Arimaswati ◽  
Wa Ode Amrina Wulan Safitri ◽  
Hartati Hartati
Keyword(s):  
Antibacterial Activity ◽  
Ethyl Acetate ◽  
Streptococcus Mutans ◽  
Bacterial Growth ◽  
Leaf Extract ◽  
Bacteria Growth ◽  
Sesbania Grandiflora ◽  
Post Test ◽  
Minimum Stress ◽  
X 24

Background: Infectious diseases are still one of the important public health issues in developing countries. Most infections are caused by bacteria, fungi, viruses and parasites. The relatively high use of antibiotics gives many problems especially resistance. So the use of traditional medicinal plants is needed as an alternative treatment. One of the traditional medicine that can be used for treatment is turi leaf (Sesbania grandiflora (L.) Pers). The potential of turi leaves is as antibacterial because its have contains alkaloids, flavonoids, saponins and tannins. The purpose of this research is to knowing about antibacterial activity of turi leaf extract (S. grandiflora (L.) Pers) on Salmonella thypi and Streptococcus mutans bacteria growth. Methods: This research uses post test only control design, independent variable is turi leaf extract and dependent variable is bacterial growth inhibition zone. Lean ethanol extract of turi leaf was obtained by maceration method after waiting for 3 x 24 hours. Testing of antibacterial activity using wells diffusion method. Results: showed that the fraction of ethyl acetate and n-hexane of turi leaves of had antibacterial activity on S. thypi and S. mutans growth with the gratest concentration value capable of inhibiting bacterial growth of 100%. The fraction of ethyl acetate and n-hexane of turi leaves inhibited S. thypi bacteria growth of 11 mm and 4 mm, while for S. mutans were 4.67 mm and 4mm. Minimum Stress Levels of ethyl acetate and n-hexane fractions on groeth of S. thypi and S. mutans bacteria were at concentrations of 10%. Conclusion: From this research it can be concluded that the fraction of ethyl acetate and turi leaf n-hexane fraction (S. grandiflora (L.) Pers) has antibacterial activity against S. thypi and S. mutans growth. with Minimum Stress Levels being at a concentration of 10%. The antibacterial activity is more sensitive to S. thypi than S. mutans. Keywords: Minimum Inhibitory, Turi Leaf (Sesbania grandiflora (L.) Pers), Salmonella typhi, Streptococcus mutans Latar Belakang: Penyakit infeksi masih merupakan salah satu masalah kesehatan masyarakat yang penting, khususnya di negara berkembang. Sebagian besar infeksi disebabkan oleh bakteri, fungi, virus dan parasit. Penggunaan antibiotik yang relatif tinggi menimbulkan berbagai permasalahan global terutama resistensi. Sehingga penggunaan tanaman obat tradisional diperlukan sebagai pengobatan alternatif. Salah satunya adalah S. grandiflora (L.) Pers. Potensi daun turi sebagai antibakteri karena mengandung alkaloid, flavonoid, saponin dan tanin. Tujuan: Tujuan dari penelitian ini adalah mengetahui aktivitas antibakteri ekstrak S. grandiflora (L.) Pers terhadap pertumbuhan bakteri S. thypi dan S. mutans. Metode: Penelitian ini menggunakan desain post test only control, variabel bebas adalah ekstrak daun turi dan variabel terikat adalah zona hambat pertumbuhan bakteri. Ekstrak etanol daun turi diperoleh dengan metode maserasi selama 3 x 24 jam. Pengujian aktivitas antibakteri menggunakan metode difusi sumuran. Hasil: Hasil penelitian menunjukkan fraksi etil asetat dan fraksi n-heksan S. grandiflora (L.) Pers memiliki aktivitas antibakteri terhadap pertumbuhan bakteri S. thypi dan S. mutans dengan nilai konsentrasi terbesar yang mampu menghambat pertumbuhan bakteri yaitu 100%. Fraksi etil asetat dan n-heksan daun turi menghambat pertumbuhan bakteri S. thypi sebesar 11 mm dan 4 mm, sedangkan untuk S. mutans berturut-turut sebesar 4,67 mm dan 4 mm. Kadar Hambat Minimum dari fraksi etil asetat dan n-heksan terhadap pertumbuhan bakteri S. thypi dan S. mutans berada pada konsentrasi 10%. Simpulan: Dari penelitian ini dapat disimpulkan bahwa fraksi etil asetat dan fraksi n-heksan S. grandiflora (L.) Pers memiliki aktivitas antibakteri terhadap pertumbuhan S. thypi dan S. mutans dengan Kadar hambat Minimum berada pada konsentrasi 10%.Aktivitas antibakteri lebih peka pada S. thypi dibandingkan S. mutans.Kata kunci:  daun turi (Sesbania grandiflora (L.) Pers), Salmonella thypi, Streptococcus mutans, kadar hambat minimum

Effects of Papaya Leaf Extract (Carica papaya L.) on Cellular Proliferation and Apoptosis in Cervical Cancer Mice Model

2019 ◽  
Vol 17 (5) ◽  
pp. 265-275
Author(s):  
Y. Peristiowati ◽  
Y. Puspitasari ◽  
Indasah
Keyword(s):  
Cervical Cancer ◽  
Cell Proliferation ◽  
Hela Cells ◽  
Leaf Extract ◽  
Caspase 3 ◽  
Methanol Extract ◽  
Negative Control ◽  
Proliferation Index ◽  
Control Group ◽  
P53 Expression

This study is aimed at analyzing the anticancer properties of papaya leaf extract, specifically the inhibition of cell proliferation and apoptotic induction through nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and p53 pathways. Twenty-five mice (Mus musculus), aged 2 months and weighing 20–30 g, was injected with 0.5 mg dexamethasone for 7 days. The mice were then injected intracutaneously with 1 ml of HeLa cells (8 × 106 HeLa cells/microliter). The mice were divided into five groups (5 each): negative control (P1) (5% CMC-Na, sodium carboxymethyl cellulose), treatment II (225 mg/kg BW (body weight) papaya leaves methanol extract), treatment III (450 mg/kg BW), treatment IV (750 mg/kg BW), and treatment PV (2 mg alcohol anticancer drug). Papaya leaf extract treatments were applied for 2 weeks. Then, the tumor tissue was isolated for hematoxylin and eosin staining. Immunohistochemical imaging was used to detect Ki-67, caspase-3, NF-κB, and p53 expression. Further analysis was undertaken using the ImmunoRatio software program. The results indicated that administration of papaya leaf methanol extract significantly increased the expression of NF-κB and p53 at a dose of 450 mg/kg BW. Our results also showed that the mice treated with 450 mg of papaya leaf extract per kg of BW (P3) had the largest increase of caspase-3 expression compared to the negative control group. Papaya leaf ethanol extract decreased the cancer cell proliferation index and increased apoptosis of cancer cells in animal models of cervical cancer; it may also work to increase NF-kB expression and expression of the p53 gene.

scholarly journals Antiplasmodial, Hepatic and Nephritic Effects of Fractions of Methanol Leaf Extract of Glyphaea brevis in Plasmodium berghei-Infected Mice

2019 ◽  
pp. 1-8
Author(s):  
Tayo Micheal Anjuwon ◽  
Oluwafemi Abiodun Adepoju ◽  
Olufemi Adewale Adeniran
Keyword(s):  
Leaf Extract ◽  
Methanol Extract ◽  
Positive Control ◽  
Oral Route ◽  
Antiplasmodial Activity ◽  
Control Group ◽  
Serum Total Protein ◽  
Infected Blood ◽  
Control Serum ◽  
Positive Control Serum

This study evaluated the antiplasmodial, hepatic and nephritic effects of fractions of Glyphaea brevis methanol leaf extract in P. berghei infected mice. Mice weighing between 15-30 g were infested intraperitoneally with 0.2ml plasmodium infected blood and left for 3 hours before treatment. Infected test groups were treated via oral route of administration with varying doses (200, 300 and 400 mg/kg body weight) of ethylacetate, N-butanol and residual aqueous portion fractions of the Glyphaea brevis methanol extract and Artemisinin (5 mg/kg b.wt) for four days. N-butanol fraction showed the highest antiplasmodial activity (76.64%), followed by residual aqueous portion (73.25%) and ethylacetate (72.99%); Artemisinin has 86.13%. Serum bilirubin (total and conjugated) concentrations of the untreated group (0.82 ± 0.20, 0.51 ± 0.12) were significantly lower (P<0.05) than those in the infected group treated with 300 mg/kg of the residual aqueous portion (1.36 ± 0.20, 0.76 ± 0.05) respectively. Serum albumin levels showed significant (P<0.05) increase in all the groups treated compared to the positive control. Serum total protein, urea and creatinine levels of test groups were not significantly (P>0.05) different from the positive control group. Conclusively, Glyphaea brevis has substantial antiplasmodial activity and could provide a lead for new antimalarial drug development.

scholarly journals Uji Aktivitas Antibakteri Ekstrak Metanol dan Fraksi Daun Kenikir (Cosmos caudatus Kunth) terhadap Salmonella typhi

2020 ◽  
Vol 8 (3) ◽  
pp. 177
Author(s):  
Achmad Syarifudin Noor ◽  
Bawon Triatmoko ◽  
Nuri Nuri
Keyword(s):  
Antibacterial Activity ◽  
Typhoid Fever ◽  
Ethyl Acetate ◽  
Methanol Extract ◽  
Inhibition Zone ◽  
Salmonella Typhi ◽  
Diffusion Method ◽  
Disk Diffusion Method ◽  
Water Fraction ◽  
Zone Diameter

The leaves of kenikir are known to have many benefits, one of which can be used as medicine. Kenikir leaves are reported to have antibacterial activity against the bacteria Salmonella typhi (S.typhi). S. typhi is a bacterium that causes typhoid fever. Typhoid fever is still an endemic disease in Asian countries, especially Indonesia. Typhoid fever became the third largest disease in Indonesia in 2010. The study related to the antibacterial activity of kenikir leaf fraction to S. typhi has never been reported. Therefore, it is necessary to conduct research related to the antibacterial activity of extracts and leaf fractions of kenikir to compare their potential against S. typhi. The study was conducted using the disk diffusion method using 5 series of concentrations namely 5%, 10%, 15%, 20%, and 30%. Tests were carried out on methanol extract, hexane, ethyl acetate, and methanol-water fraction. The results showed that highest inhibition zone diameter is 7,75 mm which is reached by methanol extract. The order of the highest inhibiting zone diameter are extract, hexane, ethyl acetate, and methanol-water fraction.

scholarly journals Bioactive Compounds Isolated from Indonesian Epiphytic Plant of Sarang Semut and Their Antibacterial Activity against Pathogenic Oral Bacteria

2017 ◽  
Vol 12 (8) ◽  
pp. 1934578X1701200 ◽  
Author(s):  
Dikdik Kurnia ◽  
Dadan Sumiarsa ◽  
Hendra D.A. Dharsono ◽  
Mieke H. Satari
Keyword(s):  
Antibacterial Activity ◽  
Ethyl Acetate ◽  
Streptococcus Mutans ◽  
Enterococcus Faecalis ◽  
Porphyromonas Gingivalis ◽  
Ethyl Acetate Extract ◽  
Inhibition Zone ◽  
Steroid Glycoside ◽  
Oral Bacteria ◽  
Epiphytic Plant

A new phenolic compound (1), a steroid (2), a new steroid glycoside (4), two triterpenoids (3 & 6) and a new phloroglucinol-sesquiterpene (5) have been isolated from the ethyl acetate extract of Sarang Semut ( Myrmecodia pendans) and their structures were determined on the basis of the spectral data. The bioactivity evaluation was conducted with the inhibition zone of compounds (mm) using Kirby-Bauer method at concentrations of 1000 and 5000 ppm for compound 1 against pathogenic oral bacteria Enterococcus faecalis, was 8.55 and 8.05 mm, respectively. Compounds 2–3 against Streptococcus mutans were 9.00 and 8.45 mm (2) and 10.24 and 9.35 mm (3), respectively. Compound 5 against Porphyromonas gingivalis was 11.5 and 10.8 mm, respectively.

scholarly journals Effectivity of Jatropha multifida L. Leaves Extract as Antibacterial on Streptococcus mutans using In Vitro Testing Methods

2021 ◽  
Vol 7 (2) ◽  
pp. 415-421
Author(s):  
Listyaning Kartiko Kinasih ◽  
Idamawati Nababan ◽  
Suci Erawati ◽  
Rouli Natasia M Simanjuntak
Keyword(s):  
Dental Caries ◽  
Streptococcus Mutans ◽  
Leaf Extract ◽  
Control Group ◽  
Entire Body ◽  
Body Parts ◽  
Control Group Design ◽  
The Individual ◽  
Jatropha Multifida

Intoduction: Health is the condition of the entire body and body parts of an individual who is free from disease both physically, mentally and socially, thus enabling the individual to be able to carry out daily activities more productively. However, many people neglect their own health, especially in the field of dental and oral health. Caries is one of the most common oral and dental problems. The prevalence of dental caries in Indonesia is high, namely 88.8%. Dental caries is caused by Streptococcus mutans bacteria which plays a role in the conversion of sucrose to lactic acid. Infection due to Streptococcus mutans bacteria can be treated by taking antibiotics. Apart from drugs, antibiotics can also be obtained from natural ingredients, one of which is the tintir castor plant (Jatropha multifida Linn) or commonly known as the betadine. Objective: To see the effect of the antibacterial content of tintir leaves against Streptococcus mutans bacteria and to determine the differences in the antibacterial effect of betadine leaf extract (Jatropha multifida L.) from a concentration of 25%, 50%, 75%, and 100% against Streptococcus mutans. Methods: The type of research used in this study was a laboratory experimental study with a post-test-only control group design as the research design and to test the sensitivity of bacteria using the paper disc diffusion test. Data analysis using One-Way ANOVA. Result: The results of this study indicate the effect of tintir castor leaf extract (Jatropha multifida L.) in inhibiting the growth of Streptococcus mutans bacteria.

scholarly journals Antibacterial Activity of Parijoto (Medinilla speciosa Blume) Fruit Against Serratia marcescens and Staphylococcus aureus

2021 ◽  
Vol 8 (2) ◽  
pp. 76
Author(s):  
Tiana Milanda ◽  
Keri Lestari ◽  
Nimas T. I. Tarina
Keyword(s):  
Antibacterial Activity ◽  
Ethyl Acetate ◽  
Serratia Marcescens ◽  
Local Community ◽  
Inhibitory Concentration ◽  
Methanol Extract ◽  
Clinical Isolates ◽  
Central Java ◽  
Anti Cancer ◽  
And Staphylococcus Aureus

Parijoto (Medinilla speciosa Blume) is a plant found in Mount Muria, Kudus, Central Java. The local community often uses its fruit to treat various diseases, as well as antibacterial, anti-inflammatory, antioxidant, and anti-cancer. This study aimed to determine the antibacterial activity of n-hexane, ethyl acetate and methanol extract from parijoto fruit against Staphyococcus aureus ATCC 29213 and Serratia marcescens clinical isolates. Gradual maceration of simplicial and antibacterial activity testing of the extracts was performed, followed by determining the Minimum Inhibitory Concentration (MIC), Minimum Bactericidal Concentration (MBC) and comparative antibacterial activity most active extract against ampicillin and cefadroxil. The results showed that all extracts exhibited activity against S. aureus ATCC 29213, but only ethyl acetate and methanol extracts had activity against S. marcescens clinical isolates. The highest antibacterial activity was shown by the methanol extract, which was more effective against S. aureus ATCC 29213, having the largest inhibition diameter and lowest MIC and MBC values (6.25 and 12.5 mg/mL). The comparative analysis indicated that the methanol extract demonstrated lower antibacterial activity against S. aureus ATCC 29213 than cefadroxil (72,511: 1). This antibacterial activity is presumed to be generated from alkaloids, polyphenols, tannins, flavonoids, quinones and saponina in the extract.Keywords: Amoxicillin, Cefadroxil, MIC, MBC 

scholarly journals Uji Konsentrasi Hambat Minimum Ekstrak Daun Gedi (Abelmoschus manihot L.) terhadap Pertumbuhan Bakteri Streptococcus Mutans

e-GIGI ◽  
2018 ◽  
Vol 6 (1) ◽  
Author(s):  
Helen N. Sekeon ◽  
Heriyannis Homenta ◽  
Michael A. Leman
Keyword(s):  
Dental Caries ◽  
Streptococcus Mutans ◽  
Leaf Extract ◽  
Inhibitory Concentration ◽  
Inhibitory Effect ◽  
Tooth Surface ◽  
Control Group ◽  
Control Group Design ◽  
Cariogenic Bacteria ◽  
Group Design

Abstract: Streptococcus mutans is the most common bacterium that causes dental caries due to its ability to ferment carbohydrates into acid resulting in the decreased pH on the tooth surface. Prevention of dental caries could be achieved by inhibiting the growth of cariogenic bacteria. Various efforts to control and prevent the cariogenic bacteria include the usage of herbal ingredients; one of them is gedi leaves (Abelmoschus manihot L.). These gedi leaves contain bioactive compounds such as flavonoids, alkaloids, steroids, and saponins. This study was aimed to prove that gedi leaf extract had inhibitory effect on the growth of S.mutans and to obtain the minimum inhibitory concentration (MIC) of this extract on the growth of S. mutans. This was a true experimental design with a randomized pretest-posttest control group design. Gedi leaf extract was obtained by maceration method in 96% ethanol. The results showed that gedi leaf extract had an antibacterial effect on the growth of S. mutans. We used turbidimetry, UV-Vis spectrophotometer, and two times of treatment to obtain the MIC of gedi leaf extract on Streptococcus mutans which was 6.25%. Conclusion: Gedi leaf extract could inhibit the growth of S. mutans with a MIC of 6.25%.Keywords: dental caries, gedi leaf extract (Abelmoschus manihot L.), Streptococcus mutans Abstrak: Streptococcus mutans merupakan bakteri yang paling banyak menyebabkan karies gigi karena bakteri ini berkemampuan memfermentasi karbohidrat menjadi asam yang berakibat turunnya pH pada permukaan gigi. Pencegahan karies gigi dapat dicapai dengan menghambat pertumbuhan bakteri kariogenik. Berbagai upaya dilakukan untuk mengen-dalikan dan mencegah bakteri kariogenik, antara lain dengan menggunakan bahan herbal; salah satunya yaitu tanaman gedi (Abelmoschus manihot L.). Daun gedi mengandung senyawa bioaktif antara lain flavonoid, alkaloid, steroid, dan saponin. Penelitian ini bertujuan untuk membuktikan efek inhibisi ekstrak daun gedi terhadap pertumbuhan S. mutans dan mendapatkan konsentrasi hambat minimum (KHM) ekstrak daun gedi terhadap pertumbuhan bakteri S. mutans. Jenis penelitian ini ialah eksperimental murni dengan randomized pretest-posttest control group design. Ekstrak daun gedi dibuat dengan metode maserasi dengan menggunakan etanol 96%. Hasil penelitian menunjukkan bahwa ekstrak daun gedi (Abelmoschus manihot L.) memiliki efek antibakteri dalam menghambat pertumbuhan bakteri Streptococcus mutans. Dengan menggunakan metode turbidimetri dan spektrofotometer UV-Vis dalam 2 (dua) kali perlakuan maka diperoleh KHM ekstrak daun gedi (Abelmoschus manihot L.) terhadap bakteri Streptococcus mutans terdapat pada konsentrasi 6,25%. Simpulan: Ekstrak daun gedi dapat meghambat pertumbuhan Streptococcus mutans dengan KHM pada konsentrasi 6,25%.Kata kunci: karies gigi, ekstrak daun gedi (Abelmoschus manihot L.), Streptococcus mutans

scholarly journals Antibacterial Activity of Buah Merah (Pandanus conoideus Lam.) Against Bacterial Oral Pathogen of Streptococcus sanguinis ATCC10556, Streptococcus mutans ATCC 25175, and Enterococcus faecalis ATCC 29212: An in Vitro Study

2020 ◽  
Vol 14 (1) ◽  
pp. 113-119 ◽  
Author(s):  
Lisda Damayanti ◽  
Ida Ayu Evaangelina ◽  
Avi Laviana ◽  
Yetty Herdiyati ◽  
Dikdik Kurnia
Keyword(s):  
Antibacterial Activity ◽  
Ethyl Acetate ◽  
Methanol Extract ◽  
Synergistic Effects ◽  
In Vitro Study ◽  
Inhibition Zone ◽  
Oral Bacteria ◽  
Inhibition Zones

Background: Caries and periodontitis are dental diseases caused by bacteria of S. sanguinis, S. mutans, and E. faecalis with three main etiological factors of the host, substrate, and time. Objective: This study proposed to investigate the antibacterial effects of Buah Merah (Pandanus conoideus Lam.) against oral bacteria of E.faecalis, S. mutans, and S. sanguinis. Materials and Methods: The Buah Merah was extracted with different solvents to yield n-hexane, ethyl acetate, methanol, and H2O extracts. The concentrations of single and mixture extracts were adjusted for antibacterial assay against bacteria of E. faecalis, S. mutans, and S. sanguinis strains through agar well diffusion assay with chlorhexidine, fosfomycin, and quercetin used as positive controls. Results: The ethyl acetate extract showed highest antibacterial activity against three oral bacterial of E. faecalis, S. mutans, and S. sanguinis with inhibition zones values of 9.3, 12.3, and 17.9 mm at 40%, respectively, together with their MIC and MBC values of 1250 & 2500, 0.312 & 0.625, and 0.312 & 0.625 ppm, respectively. For the formulation of extracts, combinations samples test gave various effects to different bacteria, with the best activity showed by methanol-ethyl acetate (M-Ea) extracts against S. mutans with an inhibition zone of 16.25 mm at 40 ppm. The strong and synergistic effect of methanol extract against S. mutans was supported by inhibition zones of the formulation of methanol extract-fosfomycin which showed an inhibition zone of 25.9 mm at 10 ppm. Conclusion: The extracts of Buah Merah demonstrated antibacterial activity against oral bacteria of E. faecalis, S. mutans, and S. sanguinis and gave important information for further in vivo clinical studies to determine the exact dosages and its effectiveness in practical application. These results prove the antimicrobial effects of Buah Merah extracts as alternative natural drugs with synergistic effects of active constituents.

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