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Journal articles on the topic 'Antibacterial activity Inhibition zone'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Damongilala, Lena Jeane, Fitje Losung, and Verly Dotulong. "Aktivitas Antibakteri Ekstrak Rumput Laut Eucheuma spinosum Segar dari Perairan Pulau Nain Sulawesi Utara." JURNAL ILMIAH SAINS 21, no. 1 (2021): 91. http://dx.doi.org/10.35799/jis.21.1.2021.33881.

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Penelitian terhadap ekstrak metanol, fraksi etil asetat, dan fraksi butanol dari rumput laut Eucheuma spinosum menggunakan metode Disc Diffusion Test dilakukan untuk mengetahui peranannya sebagai antibakteri Escherichia coli ATCC 25922, dan Staphylococcus aureus ATCC 6538. Sebagai kontrol digunakan ekstrak (negatif) pelarut metanol, dan Amoxicilin. Konsentrasi sampel uji ditetapkan 10.000 ppm. Hasil pengujian menunjukkan adanya aktivitas antibakteri yang ditandai dengan terbentuknya zona hambat terhadap bakteri Escherichia coli ATCC 25922. Besarnya zona hambat secara berurutan untuk ekstrak me

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2

Hertina, Silaban, Elisabeth Bakujai Esther, and Joyce Pohan Dame. "Effectiveness test of African leaf ethanol extract against Salmonella typhi bacteria." World Journal of Biology Pharmacy and Health Sciences 13, no. 1 (2023): 056–64. https://doi.org/10.5281/zenodo.7939834.

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<em>Salmonella typhi</em> is a gram-negative bacterium that is a pathogen that causes dangerous infectious diseases. The bacteria resist almost all antibiotics, such as penicillin, chloramphenicol, and methicillin. The problem of resistance has become a global problem, so new antibacterial materials are needed that can inhibit the growth of <em>Salmonella typhi</em>. One of the plants originating from the continent of Africa is used as a medicine to treat diarrhea, diabetes, and malaria. Where to previous studies, African leaves contain flavonoids and tannins, which can inhibit the g

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3

Nerdy, Nerdy, Palas Tarigan, Elysa Elysa, Puji Lestari, and Siti Nurmalisa. "ANTIBACTERIAL ACTIVITY TEST OF LIME JUICE EXTRACT AGAINST ESCHERICHIA COLI." Jurnal Penelitian Farmasi & Herbal 3, no. 1 (2020): 135–39. http://dx.doi.org/10.36656/jpfh.v3i1.387.

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Lime (Citrus aurantifolia Swingle) is known to have seceral phytochemical contents (flavonoids and saponins) that can be memiliki berbagai aktivitas farmakologis yang bermanfaat. Salah satu aktivitas farmaokologis yang diberikan oleh flavonoid adalah sebagai antibacterial activity. The aims of this research was to determine the antibacterial activity of lime juice against Escherichia coli bacteria. This research used an experimental laboratory research method using antibacterial effectiveness trials against the growth of Escherichia coli bacteria. The research design for antibacterial effectiv

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Deng, Jing, Wen Li, Jian Xin Tang, Ruo Mei Wu, and Xiao Yuan Zhou. "Antibacterial Activity of Nano Silver and it’s Application in Antibacterial Paper." Applied Mechanics and Materials 200 (October 2012): 393–96. http://dx.doi.org/10.4028/www.scientific.net/amm.200.393.

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The antibacterial activity of nano silver against Escherichia coli was measured by the inhibition zone and minimal inhibitory concentrations. Results showed that the inhibition zone of nano silver was improved with the increase in concentration, and the MIC of nano silver was 15.6ppm. In addition, the antibacterial activity of the antibacterial paper was determined by inhibition zone method. The paper prepared by polyvinyl alcohol(PVA), sodium carboxymethylcellulose(CMC-Na) and starch adhesive had the greatest activity at a nano silver concentration of 400,800,600ppm respectively. The paper ba

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Chairunisa, Fernanda, Mega Safithri, and Maria Bintang. "Antibacterial Activity of Ethanol Extract of Red Betel Leaves (Piper crocatum) and Its Fractions against Escherichia coli pBR322." Current Biochemistry 9, no. 1 (2022): 1–15. http://dx.doi.org/10.29244/cb.9.1.1.

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Red betel leaf (Piper crocatum) is one of the typical Indonesian herbal plants that has an antibacterial function. This study aimed to test and measure the activity of 70% ethanol extract of red betel leaf and its fractions (n-hexane, ethyl acetate, and water fractions) as antibacterial against specific bacteria Escherichia coli pBR322 based on activity and minimum inhibitory concentration. Extraction was carried out using the maceration method and continued with fractionation based on the level of solvent polarity. Antibacterial activity was indicated by the presence of inhibition zones. The

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Satri Situmorang, Rati, Haris Munandar Nasution, Minda Sari Lubis, and Yayuk Putri Rahayu. "Bioautographic Analysis And Antibacterial Activity Test Of Mengkudu Leaf (Morinda Citrifolia L.) Ethanol Extract On The Bacteria Propionibacterium Acnes." International Journal of Health and Pharmaceutical (IJHP) 3, no. 1 (2022): 173–77. http://dx.doi.org/10.51601/ijhp.v3i1.129.

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Noni contains alkaloids, flavonoids, tripertinoid, protein, lime, iron, carotene, glycosides antarkiron. The content of anthraquinin, scaloptin, flavonoid and adaptogen compounds are active compounds that have antifungal and antimicrobial effects. The antibiotics commonly used are antibiotics such as tetracycline, clindamycin and others. These chemical-based antibacterials have many negative side effects, therefore other alternatives are needed as antibacterials, one of which is by using noni. This study aims to analyze bioautography and determine the antibacterial activity of noni leaf ethano

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Andriyono, Sapto, Tatak Dwi Cahyono, and Endang Dewi Masithah. "Antibacterial Activity of Phyllophorus sp. Methanol Crude Extract on Vibrio alginolyticus and Vibrio harveyi." Journal of Marine and Coastal Science 11, no. 3 (2022): 81–89. http://dx.doi.org/10.20473/jmcs.v11i3.37722.

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Utilization of natural materials sourced from the sea is very promising. These natural ingredients can function as antibacterials that are useful in a number of fields. This study aims to explore the extract of sea cucumber Phylloporus sp. as an antibacterial agent for Vibrio alginoliticus and Vibrio harveyi. The diffusion method was carried out with three treatments of sea cucumber extract starting at doses of 500, 1000 and 1500 mg/L with three replications for each treatment. Positive control was antibiotic Chloramphenicol 100 mg/ml (0.01%) and negative control with dimethylsulfoxide (DMSO)

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Diksha, I. Gusti Ngurah Ariestha Satya, I. Gusti Ayu Artini, I. Gusti Made Gde Surya Chandra Trapika, and Ida Ayu Alit Widhiartini. "Antibacterial Activity of Ethanolic Extract of Red Frangipani Flowers (Plumeria rubra L.) on the Growth of the Bacteria Methicillin-resistant Staphylococcus aureus (MRSA)." E-Jurnal Medika Udayana 13, no. 5 (2024): 80. http://dx.doi.org/10.24843/mu.2024.v13.i05.p13.

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Introduction: MRSA is an antibacterial resistance problem that requires serious treatment. The limitations of antibacterials make it difficult to treat infections. The development of alternative antibacterial is needed. Objectives: This study shows the antibacterial effect of ethanol extract of Plumeria rubra L. flowers against MRSA bacteria. Methods: This research is a true experimental research with the only post-test control group design. The Kirby-Bauer test method was used to evaluate the antibacterial activity of ethanol extract of Plumeria rubra L. flowers with concentrations of 20%, 40

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Marjhan, Nargish, and Md Abdul Mannan. "ANTIBACTERIAL ACTIVITY OF LAWSONIAINERMISAGAINST HUMAN PATHOGENIC BACTERIA." International Journal of Advanced Research 12, no. 02 (2024): 619–21. http://dx.doi.org/10.21474/ijar01/18336.

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Natural medicine has been the main source of primary healthcare all over the world. Since ancient times, plants have been used as a rich source of effective and safe medicines.Lawsoniainermishas efficacy on skin disease.Leaves of Lawsoniainermis provide an important cosmetic dye. Henna leaves were extensively used for centuries in the Middle East, the Far Eastand Northern Africa as dye for nails, hands, hair and textile.Lawsoniainermis contained 2-hydroxy-1,4-naphthoquinone (lawsone).Properties of Lawsoniainermis include antimicrobial, antifungal, antitumor, antiangiogenic, larvicidal, antilei

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Muğlu, Halit, Mahmut Gür, Maesm Ahmed Mohamed Ben Hsin, et al. "Synthesis and Characterization of Some New 1,3,4-thiadiazole Compounds Derived from 3,4-(Methylenedioxy)cinnamic Acid and their Antimicrobial Activities." Letters in Organic Chemistry 16, no. 10 (2019): 825–36. http://dx.doi.org/10.2174/1570178616666190118153815.

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Some new 1,3,4-thiadiazole compounds derived from 3,4-(methylenedioxy)cinnamic acid were synthesized in this study. Their structures were determined using UV-Vis, IR, 1H-NMR, and 13C-NMR spectroscopy. Moreover, the antibacterial activities of the new 1,3,4-thiadiazole derivatives were tested against Gram positive (Enterococcus durans, Bacillus subtilis, and Staphylococcus aureus) and gram negative (Salmonella typhimurium, Escherichia coli, Salmonella enteritidis, Salmonella infantis, Salmonella kentucky, Enterobacter aerogenes) bacteria using the disk diffusion method. Furthermore, their antif

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IA Karfi, UU Zango, T Olatinwo, and M Suleiman. "Phytochemical screening and antibacterial activity of Vernonia amygdalina (bitter leaf) on some selected bacterial isolates." International Journal of Biology and Pharmacy Research Archive 1, no. 1 (2021): 006–13. http://dx.doi.org/10.53771/ijbpra.2021.1.1.0013.

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Plants with medicinal value produce certain chemical elements known as phytochemicals that have antibacterial activity. The study was aimed at determining the antibacterial activity of Vernonia amygdalina against bacterial isolates using agar well diffusion method. In addition, the phytochemicals analysis of the extracts was also determined. The phytochemical analysis showed the presence of saponins, steroids, terpenoids, tannins, alkaloids, and flavonoids. The result of Vernonia amygdalina showed that the average zones of inhibitions observed against these bacterial ranges from 6-22mm. The hi

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Mardhiyani, Dini, and Moni Afriani. "Antibacterial Activity Test Of Leaves Bidara (Ziziphus mauritiana Lam) Ethanolic Extracts Against Staphylococcus aureus." JPK : Jurnal Proteksi Kesehatan 10, no. 1 (2021): 44–48. http://dx.doi.org/10.36929/jpk.v10i1.343.

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Infection is the most common ilnness in public. One of the triggers of infection is bacteria. Bidara leaf (Ziziphus mauritiana L) is a plant that has antibacterial compounds is phenolics, saponins and triterpenoids/steroids. The study aims to test antibacterial potency Staphylococcus. antibacterial activity testing was carried out using paper disc difussion methode, the etanol extract show antibacterial activity against Staphylococcus Aureus which is characterized by the presence of clear zone on the media. The results of ethanol extract of bidara leaves with concentrations of 30%, 50% and 70%

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Yunita, Yunita, Fitria Lestari, and Yuli Febrianti. "Antibacterial activity lemongrass leaves of Staphylococcus aureus inhibition one." JPBIO (Jurnal Pendidikan Biologi) 5, no. 2 (2020): 176–83. http://dx.doi.org/10.31932/jpbio.v5i2.782.

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Staphylococcus aureus is a nosocomial problem that can cause skin infections. Treatment of skin infections can be done by using citronella (Cymbopogon nardus) which is antibacterial because it contains compounds such as flavonoids, steroids, terpenoids, saponins, and essential oils. This study aims to determine the antibacterial power of Cymbopogon nardus leaf starch essence against Staphylococcus aureus inhibition zone. This type of research is a laboratory experiment using a post-test only control group design. The results showed that the extract of Cymbopogon nardus leaves with a concentrat

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14

Anastasia, Fajar Farra, Itsna Risqii Aziz, Vanny Oktaviola, and Arya Iswara. "ANTIBACTERIAL ACTIVITY of COMBINATION COLD PLASMA and PARIJOTO (Medinilla speciosa) against Staphylococcus aureus and Pseudomonas aeruginosa on DIABETIC ULCER." El-Hayah 7, no. 4 (2020): 133–38. http://dx.doi.org/10.18860/elha.v7i4.10313.

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This study aims to determine the potential of cold plasma (cold plasma) as an antibacterial if combined with Parijoto (Medinilla speciosa) extract against the dominant bacteria in diabetic ulcer infection, namely Gram-positive Staphylococcus aureus and Gram-negative bacteria Pseudomonas aeruginosa with a concentration of 25%, 50 %, 75%, and 100%. This study was an experimental test in vitro using the well diffusion method. The well diffusion method uses an MHA given a 5mm diameter and inserted a 100uL sample then incubates 35 ± 2 ° C for 16-18 hours. The results showed antibacterial activity f

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Hertina Silaban, Esther Elisabeth Bakujai, and Dame Joyce Pohan. "Effectiveness test of African leaf ethanol extract against Salmonella typhi bacteria." World Journal of Biology Pharmacy and Health Sciences 13, no. 1 (2023): 056–64. http://dx.doi.org/10.30574/wjbphs.2023.13.1.0264.

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Salmonella typhi is a gram-negative bacterium that is a pathogen that causes dangerous infectious diseases. The bacteria resist almost all antibiotics, such as penicillin, chloramphenicol, and methicillin. The problem of resistance has become a global problem, so new antibacterial materials are needed that can inhibit the growth of Salmonella typhi. One of the plants originating from the continent of Africa is used as a medicine to treat diarrhea, diabetes, and malaria. Where to previous studies, African leaves contain flavonoids and tannins, which can inhibit the growth of pathogenic bacteria

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16

Priyadi, Muhammad, Nurul Chusna, and Guntur Satrio Pratomo. "UJI AKTIVITAS ANTIBAKTERI EKSTRAK ETIL ASETAT DAUN RAMBUSA DAN DAUN KARAMUNTING TERHADAP Streptococcus mutans." Jurnal Ilmiah Ibnu Sina (JIIS): Ilmu Farmasi dan Kesehatan 7, no. 2 (2022): 232–40. http://dx.doi.org/10.36387/jiis.v7i2.875.

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Empirically, many natural ingredients have been used in preventive care for the treatment of dental and oral disorders. Chronic conditions on the teeth with the appearance of plaque and tooth decay are referred to as dental caries which are characterized by toothache and also digestive disorders. Streptococcus mutans is known as the bacteria that most often causes dental caries. Karamunting and rambusa plants have enough potential as antibacterials because there have been many studies that have shown their potential as antibacterial activities. The purpose of this study was to determine the an

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Ifora, Ifora, Rezlie Bellatasie, and Dicha Efelzita. "Antibacterial activity of Purified Gambier (Uncaria gambir Roxb.)." International Journal of Research Publication and Reviews 03, no. 12 (2022): 1638–41. http://dx.doi.org/10.55248/gengpi.2022.31245.

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The bacterial resistance shown by the microorganisms in the presence of antimicrobial agents has prompted the search for new materials to overcome this public health problem. Gambir (Uncaria gambir, Roxb.) leaves extract has high catechin content thereby potentially antibacterial. This research aimed to examine the effect of purified gambir extract on inhibiting growth and killing bacteria. The antibacterial activity of Purified gambir extract (Uncaria gambir Roxb.) with concentrations of 32%, 16%, and 8% was tested against S. aureus and P. aeruginosa using the agar diffusion method. Purified

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Aji, Oktira Roka, and Mar'atul Azizah. "Antibacterial activity of actinomycetes associated with clove plant (Syzygium aromaticum) against Staphylococcus aureus and Escherichia coli." Journal of Natural Sciences and Mathematics Research 9, no. 2 (2023): 143–50. http://dx.doi.org/10.21580/jnsmr.2023.9.2.16702.

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Actinomycetes form associations with plants through colonizing plant tissues (endophytes) or by residing in the soil around some plants' roots (rhizosphere). Actinomycetes are known to produce antibacterial compounds. This study aimed to investigate the antibacterial activity of actinomycetes associated with the clove plant (Syzygium aromaticum) against Staphylococcus aureus and Escherichia coli. Actinomycetes were isolated from clove plants and the rhizosphere, and their antimicrobial activity against Staphylococcus aureus and Escherichia coli was evaluated using the agar plug method, where t

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Piyamawadee, Chaichana, and Duangdao Aht-Ong. "The Effect of Different Extracting Conditions on the Antibacterial Activity of Moringa oleifera Lam. Leaves Extract for the Development of Antibacterial Meat Tray." Materials Science Forum 990 (May 2020): 183–87. http://dx.doi.org/10.4028/www.scientific.net/msf.990.183.

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Moringa oleifera Lam. leaves is the popular plant which provides an impressive range of medicinal uses because of major phytoconstituents in leaves. Such phytoconstituents contents are highly affected by extraction conditions. Therefore, the effects of different solvent extraction, temperature and time of extraction on antibacterial activity and total phenolic contents (TPC) of M.oleifera Lam. leaves extract were determined. The antibacterial result of all extract against E.coli showed no inhibition zone, while ethanolic extracts significantly affected to S.aureus inhibition that increasing co

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Hitijahubessy, Hendro, and Yuni Irmawati. "Efektifitas Antibakteri Vibrio sp. dari Ekstrak Daun Mangrove Rhizopora apiculata." Biofaal Journal 4, no. 2 (2023): 081–89. http://dx.doi.org/10.30598/biofaal.v4i2pp081-089.

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Research was carried out by analyzing the antibacterial ability of the ethanol extractof mangrove Rhizopora apiculata leaves against Vibrio sp. Maceration using 70%ethanol resulted in an extract yield of 3.09%. The highest average inhibition zoneresults were found in mangrove leaf extract at a concentration of 100% with aninhibition zone of 24.68 mm. The smallest inhibition zone was found in mangrove leafextract with a concentration of 6.25% with an inhibition zone of 3.85 mm, a positivecontrol inhibition zone (30 mg tetracycline) of 26.35 mm and a negative controlinhibition zone (DMSO 10%) of

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Junie, Lia M., Mihaela L. Vică, Mirel Glevitzky, and Horea V. Matei. "Physico-chemical characterization and antibacterial activity of different types of honey tested on strains isolated from hospitalized patients." Journal of Apicultural Science 60, no. 1 (2016): 5–18. http://dx.doi.org/10.1515/jas-2016-0013.

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AbstractThe first aim of the study was to compare the antibacterial activity of several types of honey of different origins, against some bacterial resistant strains. The strains had been isolated from patients. The second aim was to discover the correlations between the antibacterial character of honey and the physico-chemical properties of the honey. Ten honey samples (polyfloral, linden, acacia, manna, and sunflower) from the centre of Romania were tested to determine their antibacterial properties against the following bacterial species: Pseudomonas aeruginosa, Escherichia coli, Staphyloco

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Kashyap, Nand Kumar, Jeetendra Deepak, Arvind Kumar Bhardwaj, Milan Hait, and Dilipkumar Pal. "In-vitro Antibacterial and Antifungal Activity of Curcuma Amada Roxb. against Human Pathogens." Trends in Sciences 19, no. 22 (2022): 4839. http://dx.doi.org/10.48048/tis.2022.4839.

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This investigation was conducted to evaluate the antimicrobial effectiveness of the agar disc diffusion method and to determine the inhibition zone of Curcuma amada (CA) rhizome extracts (petroleum ether, dichloromethane, and chloroform) against 12 bacterial species and 4 fungal species. The inhibition zones of the extracts were compared to those of Ciprofloxacin and Griseofulvin for antibacterial and antifungal activities, respectively. The findings revealed that the organisms under examination showed significant inhibition of bacterial as well as fungal development during the experiment and

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Rosada Sintya Dwi, Diah Tanjung, Shanty Chairani, Rini Bikarindrasari, and Siti Rusdiana Puspa Dewi. "Evaluation of Antibacterial Activity of Cymbopogon Nardus L. on The Growth of Enterococcus Faecalis." DENTA 15, no. 1 (2021): 24–29. http://dx.doi.org/10.30649/denta.v15i1.4.

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Background: Cymbopogon nardus L. known as citronella grass is traditional medicinal plant that contains saponins, polyphenols, alkaloids, flavonoids, and essential oil. Based on the previous study, it is known that it has antibacterial properties. Objective: The aim of this study was to determine antibacterial activity of Cymbopogon nardus L. in inhibiting the growth of Enterococcus faecalis. Methods: The samples were Cymbopogon nardus L. extracts with concentration of 1%, 3%, 5%,7%, 9%, and 5% NaOCl as positive control. Antibacterial activity of citronella extract against E. faecalis was obse

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Fahrul, Muhammad, Ira Sari, and Dian Iriani. "Antibacterial Effectiveness of Seaweed (Eucheuma cottonii) Extract with Different Solvent." JURNAL AGROINDUSTRI HALAL 7, no. 1 (2021): 001–8. http://dx.doi.org/10.30997/jah.v7i1.3253.

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This research was aims to determine the antibacterial characteristics of seaweed extract Eucheuma cottonii with different solvents against bacteria Bacillus cereus and Salmonella typhi, to determine the diameter of the inhibition zone and the minimum inhibition concentration of Bacillus cereus and Salmonella typhi bacteria. The research method used was an experimental method by extraction of Eucheuma cottonii with different solvents, namely ethanol 96% and hexane. The analysis parameters consisted of phytochemical identification tested, antibacterial tested, inhibition zone diameter, and minim

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Dr., Srinivasa Rao Nathani, K. Lakshmi Dr., and V. Nagalakshmi Dr. "Antimicrobial Activity of Benzimidazoles Derivatives." International Journal of Management and Humanities (IJMH) 4, no. 11 (2020): 23–27. https://doi.org/10.35940/ijmh.K1039.0741120.

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The anti-microbial action of benzimidazole of ampicillin, was examined in Vitro beneath a specific conditions, utilizing the disc diffusion method, against different gram-positive and gram-negative pathogenic microorganisms such as Bacillus cereus, Staphylococcus aureus Pseudomonas aeruginosa and Escherichia Coli. An arrangement of these compounds were arranged and have appeared to hinder phthogenic development, the range of the zone of restraint. The zone of Obstacles of compounds founds from 7 mm2 to 46 mm2 Among the synthesized compounds in common. 6-Methoxy-N-phenyl1H-benzo [d]imidazol-2-a

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Karnirius Harefa, Barita Aritonang, and Ahmad Hafizullah Ritonga. "Aktivitas Antibakteri Ekstrak Etanol Kulit Markisa Ungu (Passiflora Edulis Sims) Terhadap Bakteri Propionibacterium Acnes." Jurnal Multidisiplin Madani 2, no. 6 (2022): 2743–58. http://dx.doi.org/10.55927/mudima.v2i6.469.

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Propionibacterium acnes is a gram-positive bacterium that causes acne. This study aimed to determine the antibacterial activity of the ethanolic extract of purple passion fruit peel (Passiflora edulis Sims) against Propionibacterium acnes bacteria. The method used to determine the antibacterial activity of the ethanolic extract of passion fruit peel was a paper disc (Kirby-Bauer test). Based on the results of phytochemical screening, the purple passion fruit peel simplicia powder contains flavonoid compounds, saponins, tannins, steroids, and triterpenoids that function as antimicrobials. Based

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Mangangkung, Nazarrian, Esther Dellayani Angkouw, Veibe Warouw, Remy Emile Petrus Mangindaan, Fitje Losung, and Revol Dulles Monijung. "Anti-Bacterial And Anti-Ultraviolet Activity Test Of Black Cucumber (Holothuria atra) Extract From Tongkaina Waters, Bunaken District, Manado City." Jurnal Ilmiah PLATAX 11, no. 2 (2023): 543–50. http://dx.doi.org/10.35800/jip.v11i2.48018.

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The purpose of this study was to obtain the crude extract of Holothuria atra, test its antibacterial activity against Escherichia coli and Bacillus megaterium strains using the disc diffusion method (Kirby-Bauer disc diffusion), test the anti-UV of Holothuria atra extract taken from Tongkaina Waters, Bunaken District, Manado City. Antibacterial testing was carried out with several different concentrations, from the results of antibacterial testing carried out the average inhibition zone on E. coli bacteria with 100,000 ppm the average inhibition zone was (9.67 mm), for 50,000 ppm the average i

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Praveeen Kumar, G., Kireety Sharma Anumula, and Thupurani Murali Krishna. "ANTIBIOTIC EFFECTS OF SILVER NANOPARTICLES SYNTHESIZED FROM STYCHONS NUX VOMICA ETHYL ACETATE ROOT COLUMN FRACTION AGAINST CLINICAL RESISTANT STAPHYLOCOCCUS STRAINS." International Journal of Advanced Research 10, no. 02 (2022): 1096–99. http://dx.doi.org/10.21474/ijar01/14316.

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The present investigation was carried out to evaluate the antibacterial activity of leaf and root silver nanoparticles synthesized using different solvents. According to our studies the AgNPs of Strychons nux vomica synthesized from different solvent extract of root revealed to possess significant activity comparing to the antibacterial activity exhibited by AgNPs of leaf extract. Among the AgNPS tested, AgNPs synthesized using ethyl acetate extract showed highest inhibitory activity comparing to AgNPs synthesized using acetone and methanol extracts. The ethyl acetate extract based AgNPs showe

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Anita, Anita, Mujahidah Basarang, and Rahmawati Rahmawati. "ANTIBACTERIAL ACTIVITY OF MIANA LEAF ESTRACT (Coleus atropurpereus) ON Steptococcus aureus." Media Kesehatan Politeknik Kesehatan Makassar 15, no. 1 (2020): 1. http://dx.doi.org/10.32382/medkes.v15i1.1033.

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ABSTRACTMiana leaf(Coleus atrropurpureus) is the one of biofarmacology plant which using for antibacterial activity.Miana leaf contains flavonoid, tanin, saponin which can inhibit growth of bacteria. The aims this research were study antibacterial activity of miana leaf extract on Streptococcus aureus.This research used laboratory observation method which used miana leaf extract concentration 250 mg/ml, 125 mg/ml, 62.5 mg/ml, 31,25 mg/ml, and 15,625 mg/ml. This research used tetracylin for positive control and aquadest for negative control which growth 0n 37o C used difusion agar method. The r

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Yulianto, Agus. "Extraction of Active Compounds from Mangrove Snail Meat (Terebralia sulcata) as an Antibacterial Agent Against Escherichia coli." Aquatic Life Sciences 1, no. 1 (2024): 8–12. http://dx.doi.org/10.58920/aqlis0101229.

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Bacterial Resistance is defined as the inability of antibiotics to inhibit bacterial growth systemically, mainly caused by synthetic chemical antibiotics. Therefore, research on pharmacological alternatives to synthetic antibiotics with natural antibacterial agents is needed, one of which is the crude extract of mangrove snail (T. sulcata) tested against Escherichia coli (E. coli) bacteria. This study conducted phytochemical screening and antibacterial potential testing of T. sulcata meat extract. T. sulcata was extracted with a polar solution of Methanol pa 1:4. Antibacterial testing against

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Zhang, Nanxi, and Hui Cao. "Enhancement of the Antibacterial Activity of Natural Rubber Latex Foam by Blending It with Chitin." Materials 13, no. 5 (2020): 1039. http://dx.doi.org/10.3390/ma13051039.

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To enhance the antibacterial activity of natural rubber latex foam (NRLF), chitin was added during the foaming process in amounts of 1–5 phr (per hundred rubber) to prepare an environmentally friendly antibacterial NRLF composite. In this research, NRLF was synthesized by the Dunlop method. The swelling, density, hardness, tensile strength, elongation at break, compressive strength and antibacterial activity of the NRLFs were characterized. FTIR and microscopy were used to evaluate the chemical composition and microstructure of the NRLFs. The mechanical properties and antibacterial activity of

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K V, Bharkhavy, Pushpalatha C, Latha Anandakrishna, Niranjana Prabhu T, Lakshmi Rajamma, and Shashanka H M. "Antimicrobial Activity of Silver Nanoparticles: An In-Vitro Study." ECS Transactions 107, no. 1 (2022): 14755–63. http://dx.doi.org/10.1149/10701.14755ecst.

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To evaluate the antimicrobial activity of the silver nanoparticles suspended in Chitosan against Streptococcus mutans, the important causative pathogen for dental caries. Methodology: Antimicrobial activity was tested by performing the Agar Disc Diffusion test and the diameter of zone of inhibition (ZOI) was taken as the measure of antibacterial activity for the test sample (sample T), positive control, and negative control. The lack of formation of zone inhibition was construed as the absence of antibacterial activity. The antibacterial activity is articulated to be resistant, when a zone of

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Isah, A. I., and A. I. Aminu. "Combined activity of Azadirachta indica and Dodonea viscose leaves extract on some selected pathogens." Bayero Journal of Pure and Applied Sciences 12, no. 1 (2020): 31–38. http://dx.doi.org/10.4314/bajopas.v12i1.6s.

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The study was undertaken to investigate the antimicrobial activity both individually and in combination of two Nigerian plants (Azadirachta indica and Dodonea viscosa) against a variety of pathogenic bacteria. Five bacterial species namely; Staphylococcus aureus, Escherichia coli, Salmonella typhi, Klebsiella pneumoniae and Pseudomonas aeruginosa were selected for the assays. The powdered plant materials of the two plants were extracted using sohxlet extraction technique with methanol water and petroleum ether as solvents. The crude extracts of the two plants were subjected to phytochemical sc

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Yusuf, Nur Annah Achriana, St Rannah, and Alfrida Monica Salasa. "Phytochemical Screening And Activity Test of Maja Fruit Extract (Aegle Marmelos L.) on Growth Salmonella typhi and Vibrio cholerae." Journal Microbiology Science 3, no. 2 (2023): 1–9. http://dx.doi.org/10.56711/jms.v3i2.974.

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Maja fruit (Aegle marmelos L.) contains secondary metabolites that have antibacterial activity in the form of steroids, flavonoids and saponins, which are not used optimally. The target of this study was to observe the antibacterial activity of Maja fruit (Aegle armelos L.) extract on Vibrio cholera and Salmonella typhi. The extraction method formed by maceration and using 96% ethanol solution then the antibacterial activity was tested on the agar diffusion technique. The results of the study show that the range of inhibition zone diameter (mm) is gradual for the Maja Fruit (Aegle marmelos L.)

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عبدالغني محمد ابوبكر, فاطمة خليفة القديري, نادية سالم الرويق, and خليفة المهدي عبدالسلام علي. "Antibacterial Activity of Some Medicinal Plants against Some Bacteria Species and food spoilage bacteria." Journal of Pure & Applied Sciences 22, no. 1 (2023): 41–45. http://dx.doi.org/10.51984/jopas.v22i1.2012.

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In the current study, some plants were selected to screen their potential antibacterial activity. For evaluating antibacterial activity, both aqueous and organic solvents) methanol and acetone (were used. The tested plants were Cymbopogon schoenanthus, Cotula cinerea, and Francoeuria crispa. Agar well diffusion method was used to test the antibacterial activity against two Gram negative (Brucella spp., Proteus spp.) and three Gram positive (Staphylococcus albus, Streptococcus spp., Bacillus subtilis) bacterial species. All extracts were effective antibacterial agents, being capable of inhibiti

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Maharaj, Arvish, Yougasphree Naidoo, Yaser Hassan Dewir, and Hail Rihan. "Phytochemical Screening, and Antibacterial and Antioxidant Activities of Mangifera indica L. Leaves." Horticulturae 8, no. 10 (2022): 909. http://dx.doi.org/10.3390/horticulturae8100909.

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The bio-constituents of medicinal plants are greatly influenced by the environmental conditions and growing seasons. This study aimed to uncover the presence of different metabolites and to investigate the biological properties of the leaves of Mangifera indica during summer and winter seasons. The extract of M. indica leaves for summer and winter using different solvent extracts (hexane, chloroform, and methanol) showed the presence of phenols, flavonoids, tannins, terpenoids, alkaloids, phytosterol, saponins, steroids, and carbohydrates. Antibacterial activity of the methanolic leaf extracts

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Nurbidayah, Nafila, and Nurul Amalia. "ANTIBACTERIAL ACTIVITY OF NAMNAM FRUIT JUICE FROM SOUTH KALIMANTAN AGAINST STAPHYLOCOCCUS AUREUS AND ESCHERICHIA COLI." Journal of Vocational Health Studies 7, no. 1 (2023): 48–54. http://dx.doi.org/10.20473/jvhs.v7.i1.2023.48-54.

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Background: Namnam (Cynometra cauliflora L.) has been reported to contain bioactive compounds that are beneficial as being antifungal, antibacterial, antiviral, and antioxidant. Namnam fruit (Cynometra cauliflora L.) is a herbal plant that has antibacterial properties because it contains chemicals in the form of tannins, saponins, and flavonoids. Purpose: To determine the content of phytochemical compounds contained in them and their activity against Staphylococcus aureus and Eshcerichia coli. Method: The method used in this study was agar diffusion using blank disks and the measurement of the

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Nurhayani, Dinni, and Akhmad Ardian Korda. "Antimicrobial Activity and Hardness of as Cast and as Homogenized Cu-Ti Alloys." Advanced Materials Research 1130 (November 2015): 136–40. http://dx.doi.org/10.4028/www.scientific.net/amr.1130.136.

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Cu-Ti alloy, pure copper, and stainless steel AISI 304 were tested in this study for their microstructure, effect of alloying element to hardness, and antibacterial activity. The antibacterial properties were tested against E. coli suspensions. The titanium in Cu-Ti alloy was varied 1-4 wt. %, and the microstructure was modified by homogenization treatment. The antibacterial susceptibility test was done by inhibition zone measurement and bacterial suspension inoculation methods. Result showed the addition of titanium increased hardness from pure copper (44.93 HV) to 79.68-207.6 HV. No inhibiti

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Sari, Felisa Ananda, Herwin Herwin, and Selpida Handayani. "Antibacterial Activity of Ethanol Extract of Purple Kencana Leaves (Ruellia tuberosa L.) Using TLC-Bioautography and Agar Diffusion Methods." Journal Microbiology Science 3, no. 2 (2023): 30–38. http://dx.doi.org/10.56711/jms.v3i2.982.

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Kencana Ungu Leaf (Ruellia tuberosa L.) is a traditional plant that has antibacterial activity. The purpose of this study was to determine the antibacterial activity of the ethanol extract of Kencana Ungu leaves (Ruellia tuberosa L.) using TLC-Bioautography and Agar Diffusion methods. Simplisia from Kencana Ungu leaves (Ruellia tuberosa L.) was extracted by maceration method and then evaporated to obtain a thick extract. Preliminary testing, namely the antibacterial screening test, active extract at a concentration of 0.5% against Escherichia coli, Shigella dysenteriae, and Salmonella thypi. T

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Chandra, M. Andi, Aristha Novyra Putri, and Sischa Chamella Bachrin. "FORMULASI DAN EVALUASI SABUN CAIR EKSTRAK ETANOL BAWANG DAYAK (Eleutherine Bulbosa (Mill.) Urb) TERHADAP BAKTERI Staphylococcus Epidermidis." Jurnal Insan Farmasi Indonesia 6, no. 3 (2024): 53–63. http://dx.doi.org/10.36387/jifi.v6i3.1640.

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Ethanol extract of dayak onion bulbs has antibacterial activity that can inhibit staphylococcus epidermidis bacteria with an inhibition zone value of 16.9 mm (strong) so that it has the potential to be developed into antibacterial liquid soap preparations. The research method uses experimental by testing the physical evaluation of liquid soap preparations which include organoleptic test, homogeneity, pH test, viscosity test, cleaning power test, foam height test, free alkali test, and stability test (Cycling Test) and antibacterial testing using the disc diffusion method. The results of the ph

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Sapitri, Alfi, Nofita Lara, and Panal Sitorus. "Antibacterial Activity Test of the Ethanol in Leaves Extract of Senduduk (Melastoma malabathricum L.) Against Escherichia coli and Staphylococcus aureus." JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS 6, no. 2 (2020): 139–52. http://dx.doi.org/10.36987/jpbn.v6i2.1766.

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Senduduk (Melastoma malabathricum L.) is one of the wild plants used as traditional medicine. Senduduk leaves are used as a medicine for sprue, boils, diarrhea and smallpox. The purpose of this study was to determine the antibacterial activity of the ethanol extract of senduduk leaves of the against Escherichia coli and Staphylococcus aureus. Senduduk leaves extracted by maceration using 96% ethanol solvent. Antibacterial activity testing is carried out using the diffusion method using paper discs.This experiment was repeated three times using concentrations of 20%, 40%, 60% and 80%.Ethanol ex

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Nurzakiah, Nurzakiah, Desniar Desniar, and Kustiariyah Tarman. "Aktivitas Antimikroba Kapang Endofit Dari Tumbuhan Pesisir Sarang Semut (Hydnophytum Formicarum) Hasil Kultivasi." Barakuda 45: Jurnal Ilmu Perikanan dan Kelautan 2, no. 1 (2020): 35–42. http://dx.doi.org/10.47685/barakuda45.v2i1.59.

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Seven isolates of endophytic fungi from sarang semut plant (Hydnophytum formicarum) was observed for their antibacterial activity. This study aimed to determine the culture period of sarang semut endophytic fungi that has the best antibacterial activity. Screening of endophytic fungi resulted that RS1A isolate showed the widest zone of inhibition, which was 4.7 mm against Escherichia coli and Bacillus subtilis. The highest antibacterial activity of RS1A was shown by the extracts from static culture harvested on day 21. Zone of inhibition against Escherichia coli was 10 mm at a concentration of

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Assegaf, M., and Insafitri. "Potential extract of brown algae Sargassum sp. and Padina sp. as antibacterial Vibrio harveyi." IOP Conference Series: Earth and Environmental Science 1251, no. 1 (2023): 012034. http://dx.doi.org/10.1088/1755-1315/1251/1/012034.

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Abstract Vibrio sp. in shrimp farming ponds cause infection with Vibriosis which results in crop failure. Various efforts have been made, such as the administration of antibiotics derived from chemicals that can cause resistance to bacteria. One of the other efforts that can be done is to use marine organisms as natural antibacterial agents, such as brown algae of the genus Padina and Sargassum which have antibacterial activity. The purpose of this study was to determine the best concentration of Sargassum sp. and Padina sp. in inhibiting the growth of Vibrio harveyi bacteria and knowing which

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Marjhan, Nargish, and Md Abdul Mannan. "ANTIBACTERIAL ACTIVITY OF SMILAX CHINA AGAINST HUMAN PATHOGENIC BACTERIA." International Journal of Advanced Research 12, no. 02 (2024): 39–41. http://dx.doi.org/10.21474/ijar01/18263.

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Many plant species that are employed in herbalism are considered medicinal plants and some of these species even have therapeutic properties. In third world countries, using herbs to cure and control illnesses is common. Pharmacokinetic and metabolic research in conventional medicine have produced a lot of interest among the researchers all over the world. The Plant Smilax china is regarded as a powerful resource for the synthesis and development of drugs. Smilax chinaroot extract has a good antimicrobial activity. In order to detect the antimicrobial activity of the root extract of Smilax chi

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Kartika, Dewi, Romauli Anna Teresia Marbun, and Ayu Puspita Dewi. "ANTIBACTERIAL ACTIVITY OF KERSEN LEAF EXTRACT (MUNTINGIA CALABURA L) AGAINST STAPHYLOCOCCUS AUREUS." JURNAL FARMASIMED (JFM) 4, no. 2 (2022): 59–63. http://dx.doi.org/10.35451/jfm.v4i2.1012.

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Kersen (Muntingia calabura) is a shady plant that is usually used as a shade. Cherry leaves contain several secondary metabolites such as flavonoid, tannin and terpenoid. Flavonoid can inhibit bacterial growth by denaturing proteins and damaging cell membranes and dissolving fats contained in cell walls. According to the World Health Organization as many as 25 million deaths worldwide in 2011, one third were caused by infectious diseases. One of the most common infectious diseases caused by the bacterium Staphyloccus aureus. The purpose of this study was to see whether the 96% ethanol extract

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Nabil, Lulu, and Ally Kafesa. "Variasi Aktivitas Antibakteri Ekstrak Etanol Tumbuhan dengan Kandungan Senyawa Tanin terhadap Bakteri Staphylococcus Aureus." MAHESA : Malahayati Health Student Journal 4, no. 5 (2024): 2094–108. http://dx.doi.org/10.33024/mahesa.v4i5.14687.

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ABSTRACT Staphylococcus aureus is a pathogenic bacteria that causes various health problems. This research focuses on variations in the antibacterial activity of plant ethanol extracts containing tannin compounds against Staphylococcus aureus bacteria. To determine the antibacterial activity of ethanol extracts from plants with tannin compounds. The extraction method using ethanol aims to extract active compounds containing tannin which are known to have antibacterial properties. The results of the research showed that the average inhibition zone on each leaf had an inhibition zone diameter of

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Parnomo, Trimurti. "Effect of Arabica Coffee Bean Extract (Coffea arabica) as a Growth Inhibitor of Enterococcus faecalis ATCC 29212." Journal of Drug Delivery and Therapeutics 11, no. 3 (2021): 89–96. http://dx.doi.org/10.22270/jddt.v11i3.4820.

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Arabica coffee seeds contain a composition of Caffeine, Chlorogenic acid, Flavonoids, and Trigonelline. The purpose of this study is to test the antibacterial of Arabica coffee seed extract against bacterium Enterococcus faecalis at concentrations of 1,5625%, 3,125%, 6,25%, 12,5%, 25%, 50% and 100%. The extraction method using maceration with solvent 96%. Antibacterial activity test was done by using the Kirby and Bauer diffusion test method. The results showed that Arabica coffee seed extract could provide inhibition starting from 3,125% with an average diameter of inhibition zone of 1,16 mm

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Dr., Bheem Rao, Ramana Rao. A. T, and P. Jyothi. "A Comparative Study of Anti Bacterial Activity of Epidermal Secretion of Two Fishes Channa punctatus and H.fossils (Bloch)." A Comparative Study of Anti Bacterial Activity of Epidermal Secretion of Two Fishes Channa punctatus and H.fossils (Bloch) 8, no. 11 (2023): 5. https://doi.org/10.5281/zenodo.10154050.

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The present study carried out to determine the comparative study of antibacterial activity of epidermal secreations of two fishes channa punctatus and Hetetropneustes fossilis, against bacterial strains. i.e Escherchia coli, Klebsiella pneumonia, Staphylococcus aereus, Proteus vulgaris. In Channa punctatus higest Zone of inhibition occurs with Staphylococcus aureus (30mm) and minimum ZOI occurs with Klebsiella pneumoniae (19mm) . In heteropneustes fossilis the higest Zone of inhibition occurs Escherchia coli (30mm)., minimum ZOI with Klebsiella pneumonia (20mm) . The antibacterial activity of

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Dagninet, Yeshiwas, and Mekonnen Alemayehu. "Comparative study of the antioxidant and antibacterial activities of two guava (Psidium guajava) fruit varieties cultivated in Andasa Horticulture Site, Ethiopia." Chemistry International 4, no. 3 (2018): 154–62. https://doi.org/10.5281/zenodo.1475371.

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This investigation was carried out to evaluate the levels of phytochemicals and antioxidant potential as well as antibacterial activity of the two varieties of guava (Psidium guajava) fruit collected from Andasa horticulture site, Ethiopia. The antioxidant potential for guava fruit extracts was assessed using different in-vitro antioxidant assays, namely reducing power, Folin-Ciocalteu (F-C) assay and aluminum chloride methods. Overall, the white flesh guava fruit exhibited the highest levels of TPC, TFC and reducing power than the pink flesh guava. The mg/100g of AEAC (FRAP assay), AEAC (PMA)

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Puspitasari, Eka, Chalies Diah Pratiwi, Dede Rival Novian, and Dora Dayu Rahma Turista. "Antibacterial actifity of kecombrang (Etlingera elatior) leaf ethanol extract to against Klebsiella pneumoniae." Edubiotik : Jurnal Pendidikan, Biologi dan Terapan 7, no. 01 (2025): 36–42. https://doi.org/10.33503/ebio.v7i01.1867.

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Infectious diseases caused by bacteria in generals can be cured using antibacterial. The use of antibacterials tends to cause local hypersensitivity either on the skin or mucous membranes so that their use is starting to be reduced. Therefore, the development of natural antibacterials made from plants to reduce resistance is very necessary. kecombrang (Etlingera elatior) is one of the plants that has been shown to have activity in inhibiting bacterial growth. This research is an experimental study that aims to determine the effectiveness of the ethanol extract of the leaves of kecombrang in in

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