scholarly journals Effects of Flower and Fruit Extracts ofMelastoma malabathricumLinn. on Growth of Pathogenic Bacteria:Listeria monocytogenes, Staphylococcus aureus, Escherichia coli,andSalmonella typhimurium

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Siti Nurhadis Che Omar ◽  
Janna Ong Abdullah ◽  
Khairul Anuar Khairoji ◽  
Sieo Chin Chin ◽  
Muhajir Hamid
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Listeria Monocytogenes ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Melastoma Malabathricum ◽  
Different Temperatures ◽  
Inhibition Zones ◽  
Inhibitory Activities

Melastoma malabathricumLinn. is a shrub that comes with beautiful pink or purple flowers and has berries-like fruits rich in anthocyanins. This study was carried out with the aim to evaluate the inhibitory activities of different concentrations of theM. malabathricumLinn. flower and fruit crude extracts againstListeria monocytogenesIMR L55,Staphylococcus aureusIMR S244,Escherichia coliIMR E30, andSalmonella typhimuriumIMR S100 using the disc diffusion method. The lowest concentrations of the extracts producing inhibition zones against the test microorganisms were used to determine their minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs). In addition, the growth ofListeria monocytogenesIMR L55 andStaphylococcus aureusIMR S244 grown in medium supplemented with the respective extracts at different temperatures (4°C, 25°C, and 37°C) and pHs (4, 6, 7, and 8) was determined.

scholarly journals UJI DAYA HAMBAT EKSTRAK ETANOL DAUN PANGI (Pangium edule Reinw. ex Blume) TERHADAP BAKTERI Staphylococcus aureus, Escherichia coli DAN Pseudomonas aeruginosa

PHARMACON ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 275
Author(s):  
Glorya Sakul ◽  
Herny E. I. Simbala ◽  
Gerald Rundengan
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Ethanol Extract ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
North Sulawesi ◽  
Staphyloccocus Aureus ◽  
Inhibitory Strength

ABSTRACTOne of the natural ingredients that are often used as a medicinal plants is Pangi (Pangium edule Reinw. Ex Blume) plant. The part of pangi that are often used are leaves, which is known have antibacterial activity. North Sulawesi people empirically use this plant as food and to cure various diseases such as treating itching on the skin caused by bacteria found on the skin. The aim of this research was to determine and study the strength of antibacterial inhibition based on the category of inhibition by Davis and Stout of ethanol extract from pangi (Pangium edule Reinw. ex Blume) leaf performed by disc diffusion Kirby and Bauer method againts Staphylococcus aureus, Escherichia coli and Pseudomonos aeruginosa bacterias. The result showed that the ethanol extract from pangi (Pangium edule Reinw. Ex Blume) leaf has medium inhibitory strength at concentrations of 4%, 6% and 8%.Keywords: Pangium edule Reinw. ex Blume leaf, Antibacterial, Disc diffusion method  ABSTRAKSalah satu bahan alam yang sering digunakan sebagai tumbuhan obat adalah tumbuhan pangi (Pangium edule Reinw. ex Blume). Bagian dari tumbuhan pangi yang sering digunakan adalah bagian daun, dimana telah diketahui mempunyai aktivitas antibakteri. Masyarakat Sulawesi Utara secara empiris menggunakan tumbuhan ini sebagai bahan makanan serta untuk menyembuhkan berbagai penyakit seperti mengobati penyakit gatal-gatal pada kulit yang disebabkan oleh bakteri yang terdapat pada kulit. Penelitian ini bertujuan untuk mengetahui kekuatan daya hambat antibakteri berdasarkan kategori penggolongan daya hambat oleh Davis dan Stout dari ekstrak etanol daun Pangium edule Reinw. ex. Blume dengan metode difusi agar (difusi disk Kirby dan Bauer) terhadap bakteri uji Staphyloccocus aureus, Escherichia coli dan Pseudomonas aeruginosa. Hasil penelitian didapati bahwa ekstrak etanol daun Pangium edule Reinw ex. Blume mempunyai kekuatan daya hambat kategori sedang pada konsentrasi 4%, 6% dan 8%.Kata kunci: Daun Pangium edule Reinw. ex Blume, Antibakteri, Metode difusi disk

scholarly journals The Initial Antibacterial Activity Tests of Pliek U Oil and Pliek U: an Acehnese Traditional Food

2008 ◽  
Vol 2 (2) ◽  
Author(s):  
Nurliana Nurliana ◽  
Mirnawati Sudarwanto ◽  
Lisdar I. Sudirman ◽  
A. W. Sanjaya
Keyword(s):  
Escherichia Coli ◽  
Antibacterial Activity ◽  
Methanol Extract ◽  
Diffusion Method ◽  
Traditional Food ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Agar Disc ◽  
Inhibition Zones ◽  
Initial Research

This initial research was intended to detect antibacterial activity of pliek u oil and pliek u. Pliek u oil consist of minyeuk simplah (MS) and minyeuk brok (MB), Pliek u consist of two kinds of solid waste namely wet pliek u (Ap1) and dry pliek u (Ap2). Pliek u was methanol extracted at concentration 10% (w/v). Pliek u oil and methanol extract of pliek u were evaluated for their antibacterial activity, against Bacillus subtilis and four strains of Enterophatogenic Escherichia coli (EPEC) employing agar disc diffusion method. No antibacterial activity was shown by MS. The MB exhibited a little effect 1-2 mm against bacterial tests. The results demonstrated that the higher antibacterial activity was shown by dry pliek u compare with wet pliek u with the inhibition zones from 6.67-10.33 mm and 6.00-7.33 mm respectively.

TLC-contact bioautography and disc diffusion method for investigation of the antibacterial activity of Melastoma malabathricum L. leaves

2021 ◽  
pp. 6463-6470
Author(s):  
Dian Mayasari ◽  
Yosi B. Murti ◽  
Sylvia U. T. Pratiwi ◽  
Sudarsono Sudarsono
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Agents ◽  
Antibacterial Properties ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Microbial Infection ◽  
Bacterial Strains ◽  
Bioactive Substances ◽  
Melastoma Malabathricum ◽  
Inhibition Zones

The emergence of multi-resistant strains of bacteria reinforces the need to discover new antibacterial agents that are able to combat resistant microorganisms. Medicinal plants are a valuable natural source of bioactive substances against various infectious diseases. Melastoma malabathricum L. is an important herb that is traditionally used to treat several ailments associated with microbial infection diseases such as wounds, diarrhea, dysentery, and toothache. This study investigated extracts of M. malabathricum L. for antibacterial properties against Staphylococcus aureus and Methicillin-resistant Staphylococcus aureus (MRSA). Disc diffusion and TLC-contact bioautography techniques were employed to examine antibacterial properties of n-hexane, ethyl acetate, and ethanol extracts with observations of diameter inhibition zones and Rf values. Investigation of active compounds in TLC-bioautography used several reagents including citroboric, cerium (IV) sulfate and 2,2-diphenyl-1-picrylhydrazyl (DPPH), continued by identification of chromatogram profiles through densitometry analysis. The three extracts showed good inhibition against bacterial strains with diameter inhibition zones in the range of 8.0 – 14.0 mm with a number of active spots on TLC-contact bioautography for each extract. This plant may serve as useful source of antibacterial agents for resistant microorganisms and further investigation is needed of its bioactive pure compounds as well as their particular therapeutic potentials and applications.

scholarly journals IN VITRO ANTIBACTERIAL EFFECT OF AQUEOUS EXTRACT OF SIDDHARTAKA SNANA USED IN TREATMENT OF VICARCHIKA (ECZEMA)

2021 ◽  
pp. 94-98
Author(s):  
E.R.H.S.S. Ediriweera ◽  
A.M.H.Y Perera ◽  
R. Senavirathne ◽  
R. Rajapaksha
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Skin Diseases ◽  
Antibacterial Effect ◽  
Inhibition Zone ◽  
Cyperus Rotundus ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method

Vicarchika is a type of Kushta Roga (skin disease). It can be correlated with eczema. Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa are some of the bacteria which cause skin diseases. Siddhartaka Snana is a herbal bath that is described in Charaka Samhita as a treatment for Kushta Roga. Siddhartaka Snana is a herbal preparation which consists ten herbs namely; Cyperus rotundus, Catunaregum spinosa, Phyllanthus emblica, Terminalia chebula, Terminalia bellarica, Cassia fistula, Pongamia pinnata, Holarrhena antidysentrica, Alastonia scholaris and Coscinum fenestratum. Antibacterial effect of Siddhartaka Snana against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa that are responsible for skin diseases was studied using disc diffusion method and well diffusion methods. In disc diffusion method, no inhibition zone was observed with any of the tested bacteria. However, an inhibition zone of 9.67mm was observed against Staphylococcus aureus in well diffusion method with Siddhartaka Snana. Minimum Inhibitory Concentration (MIC) of Siddhartaka Snana against Staphylococcus aureus was 0.9225 mg/1ml. Ingredients of Siddhartaka Snana contain tannins, phenols and flavonoids, all of which possess antibacterial properties. Antibacterial effect of Siddhartaka Snana may have been exhibited due to actions of these phytochemicals. It was concluded that Siddhartaka Snana has an antibacterial effect against Staphylococcus aureus.

scholarly journals AKTIVITAS ANTIBAKTERI INFUSA DAUN LIDAH BUAYA (Aloe vera L) TERHADAP PERTUMBUHAN Staphylococcus aureus DAN Escherichia coli

2019 ◽  
Vol 6 (1) ◽  
pp. 33
Author(s):  
Yuni Widyastuti ◽  
Nia Yuliani ◽  
I.G.A. Manik Widhyastini
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Aloe Vera ◽  
Bacterial Count ◽  
Inhibition Zone ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Escherichia Coli Bacteria

Antibacterial Activity of Infused Aloe Vera Leaf (Aloe Vera L) on Growth Of Stapylococcus aureus and Escherichia coliDisinfectants may act as antibacterials. Aloe vera (Aloe vera L) is one of the plants that is often used by the community as a medicinal plant that has many active compounds such as lignin, saponin and anthraquinone substances that act as antibacterial. This study aims to determine the antibacterial activity of Aloe vera leaf extracted with infusa method on the growth of Staphylococcus aureus and Escherichia coli bacteria. The research method is to see the reduction / reduction of bacterial count (% reduction) after 30 second and 60 second with disc diffusion method. The results showed decrease or decrease of bacteria count (% reduction) to Escherichia coli bacteria found in aloe leaf skin infected by 28,2% after 60 seconds. While decrease or decrease of bacteria amount (% reduction) to Staphyloccocus uareus bacteria infusa mixture of meat and skin of Aloe vera leaves of 27.5% after 60 seconds. Antibacterial test of aloe vera leaf aloe (Aloe veraL) of 100% concentration by disc diffusion method did not show any inhibition zone around cultures of test bacteria.Keywords: Aloe vera, antibacterial activity, Staphylococcus aureus, and Escherichia coli, Infusa.ABSTRAKDesinfektan dapat berfungsi sebagai antibakteri. Lidah buaya (Aloe vera L) merupakan salah satu tanaman yang sering digunakan masyarakat sebagai tanaman obat yang memiliki banyak senyawa aktif seperti lignin, saponin dan antrakuinon yaitu zat yang berfungsi sebagai antibakteri. Penelitian ini bertujuan untuk mengetahui aktivitas antibakteri daun lidah buaya (Aloe vera L) yang diekstrak dengan metode infusa terhadap pertumbuhan bakteri Staphylococcus aureus dan Escherichia coli. Metode penelitian yaitu dengan melihat penurunan/pengurangan jumlah bakteri (% reduksi) setelah waktu 30 detik dan 60 detik dengan metode difusi cakram. Hasil penelitian menunjukkan penurunan atau pengurangan jumlah bakteri (% reduksi) terhadap bakteri Escherichia coli terdapat pada infusa kulit daun lidah buaya yaitu sebesar 28,2 % setelah waktu 60 detik.Sedangkan penurunan atau pengurangan jumlah bakteri (% reduksi) terhadap bakteri Staphyloccocus uareus terdapat pada infusa campuran daging dan kulit daun lidah buaya yaitu sebesar 27,5 % setelah waktu 60 detik. Uji antibakteri infusa daun lidah buaya (Aloe veraL) konsentrasi 100% dengan metode difusi cakram tidak menunjukkan adanya zona penghambatan disekitar biakan bakteri uji.Kata kunci : Lidah buaya, Aktivitas antibakteri, Staphylococcus aureus, dan   Escherichia coli,   Infusa.

scholarly journals What about the Antibacterial Activity of Fresh Ginger Juice (Zingiber officinale)?

2021 ◽  
pp. 163-172
Author(s):  
E. Günaydın ◽  
Gülşen Goncagül ◽  
Çiğdem Güceyü ◽  
Ö. Kardoğan
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Intensive Care ◽  
Antibacterial Effect ◽  
Zingiber Officinale ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Antibacterial Effects ◽  
Disc Diffusion Method

Background: The aim of this study was to determine the antibacterial activity of the juice obtained by squeezing fresh ginger roots (Zingiber officinale) against the standard strains Staphylococcus aureus (ATCC® 25923) and Escherichia coli (ATCC® 25922), as well as Acinetobacter baumannii and Klebsiella pneumoniae isolated from patients hospitalized in intensive care units. Methods: For this purpose, the antibacterial effect of the fresh ginger juice was tested against antibiotics such as ampicillin, cefazolin, cefuroxime, meropenem, colistin, ofloxacin, sulfamethoxazole/trimethoprim, tetracycline, and gentamicin. The antibacterial effects against the tested bacteria were determined by the disc diffusion method using 5 µL, 10 µL, 15 µL and 20 µL amounts of ginger juice impregnated on sterile discs. Results: As a result of the study, it was detected that the antibacterial effect increased in parallel with the increasing amounts of fresh ginger juice in all tested bacteria. Conclusion: Consequently, fresh Zingiber officinale can provide protection to a certain extent against bacterial pathogens due to its antibacterial action.

scholarly journals ISOLASI DAN AKTIVITAS ANTI MIKROBA BAKTERI ASAM LAKTAT DARI FERMENTASI NIRA KELAPA SAWIT

2018 ◽  
Vol 5 (1) ◽  
pp. 51 ◽  
Author(s):  
Edy Fachrial ◽  
Harmileni Harmileni
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Palm Oil ◽  
Pathogenic Bacteria ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method

<p><em>The aim of the study was to isolate lactic acid bacteria (LAB) from palm oil sap and to investigate the anti microbial activity of LAB against pathogen bacteria, Staphylococcus aureus and Escherichia coli using disc diffusion method. Palm oil sap were enriched using spesific medium MRS (Man Rogosa Sharpe) broth overnight, serial dilution were conducted and the culture were spread on the surface of MRS agar and then incubated for 48 hours. The result showed the total colonies of LAB were 1,4 x 107 CFU/mL. 6 colonies were randomly selected namely EHN1, EHN2, EHN3, EHN4, EHN5 and EHN6. The selected colonies are classified as Gram positive and bacilli in morphology. Antimicrobial activity against pathogenic bacteria was investigated using disc diffusion method. Antimicrobial activity of isolates against E.coli and S.aureus were 12,2 mm; 9mm; 11mm; 11mm; 10,5mm; 12 mm dan 13,5mm; 11mm; 12mm; 11,5mm; 12mm; 12,5mm respectively. from these result it can be concluded that LAB isolated from oil palm sap has potential as probiotic.</em></p>

scholarly journals BIOAKTIVITAS JAMUR Aspergillus flavus YANG BERSIMBION DENGAN ASCIDIAN Eudistoma sp.

2020 ◽  
Vol 8 (2) ◽  
pp. 11
Author(s):  
Alfa Mongi ◽  
Deiske A Sumilat ◽  
Fitje Losung ◽  
Remmy E P Mangindaan ◽  
Rosita A Lintang ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Candida Albicans ◽  
Ethyl Acetate ◽  
Aspergillus Flavus ◽  
Marine Invertebrate ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Antibacterial And Antifungal ◽  
Ethyl Acetate Extracts

Ascidian is a marine invertebrate that produce bioactive compounds such as antibacterial and antifungal. The purpose of this study was to obtain symbiotic fungi isolates, ethyl acetate extracts from ascidian symbiotic isolates, and to determine the antibacterial and antifungal activities of ethyl acetate extracts of symbiotic isolates using the diffusion method (disc diffusion Kirby and Bauer) against Escherichia coli, Staphylococcus aureus bacteria and against the Candida albicans fungus. The results obtained 1 ascidian species which was cultured to obtain pure isolates, the pure isolates were tested molecularly and the results showed that the isolate was Aspergillus flavus, then the isolates were grown on rice medium and extracted. The results of the fungal extract showed the presence of antibacterial and antifungal activity against Escherichia coli by 10 mm, Staphylococcus aureus by 19 mm and against the Candida albicans by 13.5 mm. Keywords : Ascidian, Eudistoma sp., Aspergillus flavus, Antibacterial, Antifungal, Symbiotic.                                                  AbstrakAscidian merupakan avertebrata laut yang dapat menghasilkan senyawa bioaktif yang seperti antibakteri dan antijamur. Tujuan dari penelitian ini yaitu mendapatkan isolat jamur simbion dari ascidian, mendapatkan ekstrak etil asetat dari isolat jamur simbion ascidian, dan menguji aktivitas antibakteri dan antijamur ekstrak etil asetat isolat jamur simbion dengan metode difusi agar (disc diffusion Kirby and Bauer) terhadap bakteri Escherichia coli, Staphylococcus aureus dan terhadap jamur Candida albicsans. Hasil penelitian didapatkan 1 jenis ascidian yang kemudian dikultur untuk mendapatkan isolat murni, isolat murni diuji secara molekuler dan didapati hasil bahwa isolat tersebut merupakan jamur Aspergillus flavus. Isolat tersebut kemudian ditumbuhkan pada media nasi dan diekstrak. Hasil ekstrak jamur tersebut menunjukkan adanya aktivitas antibakteri dan antijamur terhadap bakteri Escherichia coli sebesar 10 mm, Staphylococcus aureus sebesar 19 mm dan terhadap jamur Candida albicsans 13,5 mm. Kata kunci : Ascidian, Eudistoma sp., Aspergillus flavus, Antibakteri, Antijamur, Simbion.

scholarly journals EVALUATION OF ANTIBACTERIAL ACTIVITY OF A CYANOBACTERIUM SCYTONEMA SCHMIDTII GOM

2021 ◽  
pp. 77-79
Author(s):  
Janardhan Namdeo Nehul
Keyword(s):  
Escherichia Coli ◽  
Antibacterial Activity ◽  
Methanol Extract ◽  
Axenic Culture ◽  
Soil Samples ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Zone Of Inhibition ◽  
Disc Diffusion Method ◽  
Air Blower

Scytonema schmidtii,a cyanobacterium was isolated from the collected soil samples from different locations of Ahmednagar district of Maharashtra state (India). Identification was carried out using morphological variation and taxonomical approaches according to Desikachary (1959) and Prescott (1962) .The axenic culture of Scytonema schmidtii was obtained by using the method recommended by Bolch and Blackburn (1996). The isolated Scytonema schmidtii was grown autotropically in BG-11 medium as described by Rippka et al.,(1979) and incubated at 30±2°c.After 25 days, biomass was harvested by filtration through double layered muslin cloth and dried using air blower. The biomass of this Scytonema schmidtii species was used for the assessment of antibacterial activity against Escherichia coli, Bacillus subtilis, Staphylococcus aureus, Pseudomonas aeruginosa, Micrococcus flavus and Proteus mirabilis. The antibacterial activity was studied by disc diffusion method (Anonymous,1996).Methanol extract of Scytonema schmidtii showed the activity against all the tested bacterial strains.Maximum zone of inhibition (23±1.9 mm) was recorded with methanol extract of Scytonema schmidtii.

scholarly journals Interpretive criteria to differentiate low- and high-level mupirocin resistance in Staphylococcus aureus

2007 ◽  
Vol 56 (7) ◽  
pp. 937-939 ◽  
Author(s):  
Naira Elane Moreira de Oliveira ◽  
Ana Paula Couto Marques Cardozo ◽  
Elizabeth de Andrade Marques ◽  
Kátia Regina Netto dos Santos ◽  
Marcia Giambiagi deMarval
Keyword(s):  
Staphylococcus Aureus ◽  
High Resistance ◽  
The Other ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Zone Diameter ◽  
Resistant Strains ◽  
Mupirocin Resistance ◽  
High Level

Meticillin-resistant Staphylococcus aureus isolates were classified into three mupirocin susceptibility groups by the disc diffusion method using 5 and 200 μg mupirocin discs. The zone diameter observed for a 5 μg disc distinguished MupS from the resistant strains (either MupRL or MupRH). On the other hand, a 200 μg disc distinguished the high-resistance MupRH strains from the other two (MupS or MupRL). Thus, the concomitant use of 5 and 200 μg mupirocin discs allowed the clear distinction among the three mupirocin susceptibility groups, MupS, MupRL or MupRH.

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