scholarly journals ISOLASI DAN UJI AKTIVITAS DAYA HAMBAT EKSTRAK ETANOL BIJI PINANG (Areca catechu L.) TERHADAP BAKTERI PADA LIDAH

2019 ◽  
Vol 1 (3) ◽  
pp. 177-188
Author(s):  
Meiriza Djohari ◽  
Wulandari Yulia Putri ◽  
Erniza Pratiwi
Keyword(s):  
Antibacterial Activity ◽  
Staphylococcus Epidermidis ◽  
Ethanol Extract ◽  
Diffusion Method ◽  
Natural Material ◽  
Betel Nut ◽  
Areca Catechu ◽  
Inhibitory Power ◽  
Branhamella Catarrhalis ◽  
And Staphylococcus Aureus

Betel  nut (Areca catechu L.) is a natural material that has antibacterial activity in treating diseased on teeth, halitosis and can inhibit of dental caries. The objective of this research is type of bacteria based on morphology, the results of bacterial identification tests on the tongue and to determine the effect of the inhibitory power of betel nut ethanol extract (Areca catechu L.) to bacteria of the tongue. Antibacterial activity testing using disc diffusion method with various concentrations of 10%, 20% and 30%. Secondary metabolite contents  are alkaloid, terpenoid and flavonoid.The results obtained from the identification test based on the color of bacteria Branhamella catarrhalis, Staphylococcus epidermidis and Straphylococcus aureus. Ethanol extract of areca nut (Areca catechu L.) is better to inhibiting the growth of Staphylococcus epidermidis and Staphylococcus aureus compared to Branhamella catarrhalis. Based on Two Way Anova statistical data on inhibitory zone diameters, there were differences between the concentration groups of 10%, 20% and 30% and there were significant differences in the inhibitory activity of Branhamella catarrhalis bacteria compared to Staphylococcus epidermidis and Straphylococcus aureus bacteria but not significantly different between Staphylococcus epidermidis and Straphylococcus aureus bacteria

scholarly journals UJI AKTIVITAS ANTIBAKTERI PASTA GIGI EKSTRAK BIJI PINANG (Areca catechu L.) TERHADAP Streptococcus mutans DAN Staphylococcus aureus

2015 ◽  
Vol 1 (1) ◽  
pp. 48-58
Author(s):  
Nur Afni ◽  
Nasrah Said ◽  
Yuliet Yuliet
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Streptococcus Mutans ◽  
Natural Material ◽  
Betel Nut ◽  
Test Results ◽  
Physical Quality ◽  
Areca Catechu ◽  
And Staphylococcus Aureus

Betel nut (Areca catechu L.) is a natural material that has antibacterial activity content against Streptococcus mutans and Staphylococcus aureus. Under these conditions, betel nuts were formulated in a toothpaste that has antibacterial activity.This study aims to determine the antibacterial activity of betel nut extract in toothpaste with various concentrations of 1.5%, 3% and 4.5% and to determine the effective concentration of betel nut extract in toothpaste that meets the physical quality of chemical and antibacterial activity against Streptococcus mutans and Staphylococcus aureus. The research design used was a completely randomized design (CRD). Extraction was done by maceration using ethanol 96%. Viscous extract obtained in the preparation of toothpaste formulated with a concentrations of 1.5%, 3% and 4.5%. All tested formula toothpaste physical quality of chemical (organoleptic, homogeneity, pH, viscosity and foaming) and antibacterial activity. The data obtained in the physical quality of chemical testing were analyzed descriptively and antibacterial activity data were statistically analyzed using One Way ANOVA at 95% confidence level, followed by Duncan test using SPSS. The test results show that the antibacterial toothpaste with betel nut extract concentrations of 1.5%, 3% and 4.5% show antibacterial activity against Streptococcus mutans and Staphylococcus aureus. Formula toothpaste as an antibacterial effective against bacteria test is F3 with betel nut extract concentration of 4.5%, which result in the diameter of the inhibition of Streptococcus mutans by 11.37 mm and 20.03 mm for Staphylococcus aureus. The test results show all the physical quality of chemical toothpaste betel nut extracts meet the physical quality of chemical toothpaste

scholarly journals AKTIVITAS ANTIBAKTERI EKSTRAK ETANOL DAN FRAKSI KULIT BATANG BELIMBING WULUH (Averrhoa bilimbi Linn.) TERHADAP BAKTERI Klebsiella pneumoniae DAN Staphylococcus epidermidis BESERTA BIOAUTOGRAFINYA

Biomedika ◽  
2012 ◽  
Vol 4 (2) ◽  
Author(s):  
Dr. Muhtadi , MSi. ◽  
Ria Ambarwati ◽  
Ratna Yuliani
Keyword(s):  
Antibacterial Activity ◽  
Klebsiella Pneumoniae ◽  
Ethyl Acetate ◽  
Staphylococcus Epidermidis ◽  
Antibacterial Properties ◽  
Ethanol Extract ◽  
Ethyl Acetate Fraction ◽  
Diffusion Method ◽  
Disk Diffusion Method ◽  
Water Fraction

Belimbing wuluh (Averrhoa bilimbi Linn.) is a tropical plant that has antibacterial properties. The purpose of this study was to test the antibacterial activity of bark Belimbing wuluh against Klebsiella pneumoniae and Staphylococcus epidermidis and their bioautography. Extraction methods used to research is method maceration with a solvent ethanol 96 %. Fractinations done by method partition liquid-liquid with a separating funnel. Test performed in this research covering identi� cation bacteria, the sensitivity bacteria, antibacterial activity, thin layer chromatography, bioautography. The result of antibacterial activity ethanol extract of disk diffusion method with concentrations 400 μg/disk, 800 μg/disk, 1600 μg/disk is 8±0,5; 10,34±0,58; 12,17±0,76 on Klebsiella pneumoniae, 10,17±0,29; 11±0; 11.5±0 on Staphylococcus epidermidis, n-hexane fraction with concentration 400 μg/disk, 800 μg/disk, 1600 μg/disk is 8,34±0,29; 9,34±0,29; 10,84±0,76 on Klebsialla pneumoniae, 8,5±0,5; 9,34±0,29; 10,67±0,29 on Staphylococcus epidermidis, ethyl acetate fraction with concentration 400 μg/disk, 800 μg/disk, 1600 μg/disk is 9,17±0,29; 10,34±0,29; 11,17±0,29 on Klebsiella pneumoniae and 9,5±0,5; 10,67±0,29; 12,67±1,26 on Staphylococcus epidermidis, ethanol-water fractions with concentration 400 μg/disk, 800 μg/ disk, 1600 μg/disk is 8,17±0,29; 9,17±0,29; 10±0 on Klebsiella pneumoniae, 9±0; 9,67±0,29; 10,34±0,29 on Staphylococcus epidermidis. The TLC show chemical compounds contained in the ethanol extract, n-heksan fraction, ethyl acetate fraction, and ethanol-water fraction is a compound of the saponins, alkaloids, � avonoids and phenolic. Bioautography showed that ethanol extracts, n-heksan faction, ethyl acetate fraction, and etanol-airfaction Belimbing wuluh (Averrhoa bilimbi Linn.) bark have not antibacterial activity because there is no clear area around on plate TLC.Keywords: Belimbing wuluh (Averrhoa bilimbi Linn.), ethanol extract, fractination, antibacterial, bioautogra� .

scholarly journals Aktivitas Antibakteri Ekstrak Daun Jarak Pagar (Jatropha Curcas L) Terhadap Staphylococcus Epidermidis Dan Staphylococcus Aureus Secara In Vitro

2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Susilo Yulianto ◽  
Sunarmi Sunarmi
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Jatropha Curcas ◽  
Staphylococcus Epidermidis ◽  
Leaf Extract ◽  
Inhibitory Zone ◽  
Zone Diameter ◽  
Jatropha Curcas L ◽  
Inhibitory Power ◽  
And Staphylococcus Aureus

Abstract: Jatropha Leaves, Staphylococcus Epidermidis, Staphylococcus Aureus. Jatropha curcas L leaves contain tannins, saponins and flavonoids. According to some studies, tannins, saponins and flavonoids have antibacterial power. Based on these indications, it is important to do research on antibacterial potency of jatropha leaf extract (Jatropha curcas L) against Staphylococcus epidermidis and Staphylococcus aureus bacteria. The aim of this research is to know Antibacterial Activity of Jatropha curcas L Extract on Staphylococcus epidermidis and Staphylococcus aureus". This research. An experimental study by testing the antibacterial activity of leaf extract and jatropha result of maceration, infundation and reflux as measured by Minimal Inhibitory Concentration (KHM) on growth of Staphylococcus epidermidis and Staphylococcus aureus bacteria. From the results of the research, it was found that the extract of the reflux was brownish green and the characteristic of jatropha leaves. The amount of extract produced was 17.03 g, so the yield was 17.03%. Jatropha leaf extract of maceration has no inhibitory power to S. epidermidis in 4 series concentrations starting from 3.125 ppm to 25.000 ppm. Inhibitory zones begin to appear at concentrations of 50,000 ppm and increase at concentrations of 100,000 ppm. The drag zone diameter in the Jatropha curcas extract of the reflux showed the inhibitory power in all series of concentrations. The smallest inhibitory zone was shown at a concentration of 3,125 ppm (9.33 mm) and increased with increasing concentrations. The diameter of the inhibit zone was greatest at 100,000 ppm concentrations of 22.67 mm. Description of inhibitory zone diameter of methanol leaf extract of jatropha result of maceration and reflux to S. epidermidis. The conclusion of this research is extract of reflux result giving bigger resistance than maceration extract to S. epidermidis and S. aureus. Methanol extract of jatropha from the maceration and reflux have strong antibacterial activity against S. epidermidis and S. aureus but still under Klindamycin.

scholarly journals ANTIBACTERIAL ACTIVITY OF Samanea saman LEAF ETHANOL EXTRACT AGAINST Escherichia coli AND Staphylococcus aureus AND ITS TOTAL FLAVONOID AND PHENOLIC CONTENTS

Jurnal Kimia ◽  
2018 ◽  
pp. 121
Author(s):  
W. S. Rita ◽  
I M. D. Swantara ◽  
I. A. R. Astiti Asih ◽  
N.K. Sinarsih
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Ethanol Extract ◽  
Total Flavonoid ◽  
Diffusion Method ◽  
E Coli ◽  
Phenolic Contents ◽  
Agar Disc ◽  
Samanea Saman ◽  
And Staphylococcus Aureus

Antibacterial activity of Samanea saman usually shows a positif correlation to the flavonoid and phenolic contents.  The aim of this study was to evaluate the antibacterial activity of the ethanol extract of Samanea saman against Escherechia coli and Staphylococcus aureus and determine the total flavonoid and phenolic contents of the extract. The extraction was done by ethanol 96% at room temperature. The antibacterial assay was conducted by agar disc diffusion method. The total flavonoid and phenolic contents were determined by UV-Vis Spectrofotometer with the standard of quersetin and galic acid, respectively. The extraction of 250 g of Samanea saman leaves resulted in 24.5 g of ethanol extracts. The ethanol extract showed a moderate inhibition of 8.33 mm towards E. coli and a strong inhibition of 13.6 mm towards S. aureus at the concentration of 4%. The Minimum Inhibitory Concentration (MIC) of the extract against E. coli and S.aureus were of 3% and 0.3%”, respectively. The total flavonoid and phenolic contents were successively 1233.2991 mg QE/100g and 2544.6154 mg GAE/100g. Keywords: Escherechia coli, flavonoid and phenolic content,  Samanea saman, Staphylococcus aureus

scholarly journals Antibacterial activity test of Simargaolgaol (Aglaonema modestum Schott ex Engl) leaves extract against Escherichia coli and Salmonella typhi bacteria

2021 ◽  
Vol 13 (2) ◽  
pp. 151-158
Author(s):  
Tiurma Solomasi Zega ◽  
◽  
Putri Mandaoni Pakpahan ◽  
Rahmayani Siregar ◽  
Givinda Sitompul ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Antibacterial Activity ◽  
Ethyl Acetate ◽  
Leaf Extract ◽  
Ethanol Extract ◽  
Salmonella Typhi ◽  
Diffusion Method ◽  
Activity Test ◽  
Inhibitory Power ◽  
Ethanol Extracts

The Simargaolgaol (Aglaonema modestum Schott ex Engl) plant is a plant that grows wild in Barus District, Central Tapanuli, North Sumatra which is used by the community as a medicinal plant. This study aims to determine the antibacterial activity of n-hexane, ethyl acetate and ethanol extracts from Simargaolgaol leaves against Escherichia coli and Salmonella typhi bacteria. The antibacterial activity test of Simargaolgaol leaves was carried out using the disc diffusion method. The results of antibacterial activity showed that the highest inhibitory power of Simargaolgaol leaf extract was ethanol extract (polar), ethyl acetate extract (semi polar) and n-hexane extract (non polar). The inhibitory power of ethanol extract, ethyl acetate, and n-hexane against Escherichia coli bacteria was 13.1 mm (strong); 9.7 mm (medium); 8.0 mm (medium) and for Salmonella typhi bacteria respectively 11.2 mm (strong); 10.7 mm (strong) and 9.3 mm (medium). With the concentration of the extract in the diameter is 10%. Based on this, it can be concluded that Simargaolgaol leaf extract has potential as an antibacterial. Keywords: Aglaonema modestum Schott ex Engl, Antibacterial activity, Escherichia coli, Salmonella typhi

scholarly journals Antibacterial Activity Test of Ethanol Extract from Dried Simplicia Garlic (Allium sativum L.) Against Bacillus cereus Bacteria

2020 ◽  
Vol 3 (2) ◽  
pp. 93-99
Author(s):  
Athaillah Athaillah ◽  
Ugi Diana Lestari
Keyword(s):  
Antibacterial Activity ◽  
Bacillus Cereus ◽  
Allium Sativum ◽  
Ethanol Extract ◽  
Diffusion Method ◽  
Phytochemical Screening ◽  
Disk Diffusion Method ◽  
Activity Test ◽  
Inhibitory Power ◽  
Dried Extract

This research is aimed to find out the extract activity dried simplisia of garlic (Allium sativum L.) as an antibacterial which is capable to inhibiting growth of Bacillus cereus bacterium, to find out the alkaloid secondary of metabolites, flavonoid, tannin and saponin that contained in dried extract of garlic and to find out a concentration that has the most antibacterial activity which is capable to inhibiting growth of Bacillus cereus bacterium. Garlic was extracted by maceration method using a solvent ethanol 96%. After the extract obtaned, then phtochemical screening and standardization test. Thickening technique by evaporation used vacum rotary evaporator until thick extarct was obtained. Antibacterial activity thest by using disk diffusion method. This research was used seven concentrations which were 20% (b/v), 30% (b/v). 40% (b/v), 50% (b/v), 60% (b/v), 80% (b/v)and100% (b/v). The result of phytochemical screening test, ethanol extract garlic (Allium sativum L.) positive contained compound alkaloid, flavonoid, saponin and tannin. Standardization of power simplisia fulfill the requirements set by Depkes RI 2000. The result of activity test of optimum antibacterial was obtained inhibitory power with the number 27 mm on 40% (b/v) concentration. This proves that garlic (Allium sativum L.) have antibacterial affects against Bacillus cereus bacterium

scholarly journals FORMULATION OF OINTMENT OF ANTIBACTERY ETHANOL EXTRACT OF TORCH GINGER (Etlingera elatior) AGAINST BACTERIA Staphylococcus aureus

2018 ◽  
Vol 1 (1) ◽  
pp. 1-5
Author(s):  
Ainil Fithri Pulungan ◽  
Debi Dinha Octora Sitepu ◽  
Devi Mariana Sinaga
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Physical Stability ◽  
Ethanol Extract ◽  
Diffusion Method ◽  
Ointment Base ◽  
Ointment Formulation ◽  
Inhibitory Power ◽  
Made In ◽  
Etlingera Elatior

One of the causes of infection was bacteria, such as Staphylococcus aureus. Torch ginger has been widely used to treat dwaseases caused by bacteria. Torch ginger has been studied to have antibacterial activity against Staphylococcus aureus bacteria. The purpose of thwas study was to formulate an ointment preparation of ethanol extract of torch ginger and to see if the ointment preparations had antibacterial activity against Staphylococcus aureus bacteria. The research method used in thwas research was experimental True, covering the stages: making of ethanol extract of kecombrang flower with maceration method using 96% ethanol solvent, ointment formulation made with ointment base: vaseline, adeps lanae, and propylene glycol. Made in three concentrations of extracts namely: F I with 100 mg, F II with 200 mg, and F III with 300 mg. Furthermore, the evaluation of the preparation of evaluation of physical stability and homogeneity, and test of antibacterial activity against Staphylococcus aureus bacteria with diffusion method to use Kirby odor dwasc paper. The results showed that the ointment had good physical stability and homogeneity for 30 days of storage at room temperature. The antibacterial activity test of the ointment shows that the inhibitory diameter F I has an average of 16.45 mm, F II has an average of 18.60 mm and F III has an average of 21.12 mm. Based on the results obtained it can be concluded that the preparation of the ethanol extract of torch ginger has an inhibitory power to Staphylococcus aureus bacteria. In the next research was expected to pay attention to the growing area of ​​torch ginger  and to compare the antibacterial activity between petal flowers and flower seeds using Staphylococcus aureus bacteria.

FORMULASI EKSTRAK ETANOL GAMBIR (Uncaria gambir Roxb.) DALAM BEDAK ANTI JERAWAT

2017 ◽  
Vol 2 (1) ◽  
pp. 99
Author(s):  
Husnul Warnida ◽  
Agustiani Masliyana ◽  
Sapri Sapri
Keyword(s):  
Particle Size ◽  
Staphylococcus Epidermidis ◽  
Average Particle Size ◽  
Ethanol Extract ◽  
Inhibition Zone ◽  
Diffusion Method ◽  
Average Particle ◽  
Oil Glands ◽  
Fine Size ◽  
And Staphylococcus Aureus

Acne occurs due to blockage of pilosebaseus (oil glands) and inflammation causing by Propionibacterium acne, Staphylococcus epidermidis and Staphylococcus aureus. The purpose of the study was to test the antibacterial activity of gambir (Uncaria gambier Roxb.) ethanol extract toward Staphylococcus epidermidis and to formulate gambir ethanol extract into a loose powder dosage form that meets the standards of physical powder quality. Gambir was macerated with 95% ethanol. Activity of gambir ethanol extract against Staphylococcus epidermidis was tested by diffusion method using varying concentrations 3%, 6% and 9% of gambir etanol extract. Afterward, gambir ethanol extract formulated into powder. Analyze of powder physical properties including organoleptic test, homogeneity and particle size distribution. The results showed gambirethanol extract 3%, 6%, 9% has inhibition zone diameter 3.6 mm, 4.2 mm, and 6.8 mm respectively. Gambir ethanol extract powder has a homogeneous, fine size with a light brown color and a distinctive gambir aroma. The average particle size of the powder is 236.17 μm

scholarly journals AKTIVITAS ANTIBAKTERI EKSTRAK MIKROALGA Thalassiosira sp TERHADAP BAKTERI Staphylococcus aureus, Staphylococcus epidermidis dan Propionibacterium Acne

2019 ◽  
Vol 4 (1) ◽  
pp. 62
Author(s):  
Vina Juliana Anggraeni ◽  
Titis Setyaning Wahyu ◽  
Herni Kusriani ◽  
Dewi Kurnia
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Ethyl Acetate ◽  
Staphylococcus Epidermidis ◽  
Ethanol Extract ◽  
Diffusion Method ◽  
Marine Biota ◽  
Disc Diffusion ◽  
Propionibacterium Acne ◽  
X 24

AbstrakPengembangan obat dan kosmetik dari biota laut kini tengah terjadi di dunia farmasi. Mikroalga Thalassiosira sp merupakan jenis mikroalga yang memiliki kandungan senyawa-senyawa bioaktif. Beberapa penelitian sebelumnya menunjukkan bawa mikroalga memiliki aktivitas antibakteri.  Penelitian ini bertujuan untuk mengetahui aktivitas antibakteri dari ekstrak mikroalga Thalassiosira sp  terhadap 3 bakteri  yaitu staphylococcus aureus, staphylococcus epidermidis dan propionibakterium Acne di fasa n-heksan, etil asetat dan etanol. Ketiga bakteri ini dapat menyebabkan infeksi kulit. Mikroalga Thalassiosira sp dikultivasi menggunakan medium walne dan di panen pada hari ke-6 setelah penanaman. Pemanen mikroalga dilakukan dengan teknik sentrifuga. Ektrak dilakukan dengan cara  maserasi bertingkat selama 3 x 24 jam. Pengujian antibakteri dilakukan dengan metode difusi kertas cakram atau metode disc diffusion menurut Kirby-Bauer. Hasil ekstrak mikroalga Thalassiosira sp diperoleh paling banyak pada ekstrak etanol sebanyak 24,24%(b/b), ektrak etil asetat sebanyak 19,75%(b/b) dan paling sedikit adalah ekstrak heksan sebanyak 8,64% (b/b). Hasil uji difusi menunjukkan ekstrak n-heksan, etil asetat dan etanol mikroalga Thalassiosira sp memiliki aktivitas terhadap bakteri staphylococcus aureus, staphylococcus epidermidis dan propionibakterium Acne yang ditunjukan dengan adanya zona bening. Kata kunci: mikroalga, Thalassiosira sp, antibakteri, infeksi kulit, metode difusi Abstract Development drugs and cosmetics from marine biota is now being happened in pharmacy word. Microalgae Thalassiosira sp is a type of microalgae that has a bioactive compounds. Several previous studies have shown the existence of microalgae which have antibacterial activity. This study aimed to study the antibacterial activity of extracts of microalgae Thalassiosira sp against 3 bacteria which is staphylococcus aureus, staphylococcus epidermidis and propionibacterium acne in the n-hexane, ethyl acetate and ethanol phases. These three bacteria can cause skin infections. Microalgae Thalassiosira sp was cultivated using walne medium and harvested on the 7th day after planting. Microalgae harvesters are carried out by centrifuge techniques. The extract is done by multilevel maceration for 3 x 24 hours. Antibacterial testing was carried out by the paper diffusion method or Kirby-Bauer's disc diffusion method. The results of the crude extract of microalgae Thalassiosira sp were obtained at most in ethanol extract as much as 24.24% (w/w), extract of ethyl acetate at 19.75% (w / w) and at least hexane extract at 8.64% (w/w). The diffusion test results for n-hexane, ethyl acetate, and ethanol microalgae Thalassiosira sp extract have activity on  staphylococcus aureus, staphylococcus epidermidis and propionibacterium acne which are supported by clear zones. Keywords: mikroalge, Thalassiosira sp, antibacteria, skin infection, diffusion method

scholarly journals Antibacterial Activity Test of Ethanol Extract and SAP of Betung Bamboo Shoot (Dendrocalamus asper) Against Klebsiella pneumoniae and Pseudomonas aeruginosa Bacteria

2021 ◽  
Vol 1 (1) ◽  
pp. 11
Author(s):  
Anif Nur Artanti ◽  
Farikatul Sufi Mujahidah
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Antibacterial Activity ◽  
Klebsiella Pneumoniae ◽  
Ethanol Extract ◽  
Diffusion Method ◽  
Bamboo Shoot ◽  
Activity Test ◽  
Bamboo Shoots ◽  
Dendrocalamus Asper ◽  
Inhibitory Power

<p>Boiled water from bamboo shoots is often used for pneumonia and a cleanser for the wound. It is known that bamboo can be an antibacterial agent because it has saponin, alkaloid, and flavonoid. This research aims to study whether ethanol extract and sap from bamboo betung shoot (<em>Dendrocalamus asper</em>) has secondary metabolism and antibacterial activity against <em>Klebsiella pneumoniae</em> and <em>Pseudomonas aeruginosa</em>. The extract was taken by maceration method using ethanol 96%, and the sap was taken from the water of bamboo shoot. Antibacterial activity test was conducted using disc diffusion method to measure the magnitude of inhibitory power at six concentration ratios of b/v solutions (10%; 20%; 30%; 40%; 50%; 60%). The result showed that ethanol extract and sap of bamboo betung shoot contained saponin, quercetin, and quinine which were supposed to have antibacterial activity against <em>Klebsiella pneumoniae</em> and <em>Pseudomonas aeruginosa</em>. The largest inhibitory zone diameter was found in ethanol extract 60% with the category of moderate inhibition of 9.05 ± 0.12 mm against <em>Kliebsiella pneumoniae</em> and 5.07 ± 0.13 mm against <em>Pseudomonas aeruginosa</em>. While the sap with a concentration of 60% was included in the weak inhibitory category, which was 5.65 ± 0.05 mm in the <em>Kliebsiella pneumoniae</em> and 4.81 ± 0.22 mm in <em>Pseudomonas aeruginosa</em>.<strong></strong></p><p> </p>Keywords: antibacterial; bamboo shoot; betung bamboo.

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