scholarly journals Potential Application of Murraya koenigii Extract as Antibacterial Agent in Liquid Hand Soap Formulation

2021 ◽  
Vol 6 (2) ◽  
pp. 97-100
Author(s):  
Ai Yin Loh ◽  
Khomaizon A.K. Pahirulzaman
Keyword(s):  
Escherichia Coli ◽  
Antibacterial Agent ◽  
Antibacterial Agents ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Murraya Koenigii ◽  
Disc Diffusion Method ◽  
E Coli ◽  
And Staphylococcus Aureus ◽  
Paper Disc

Here we present the efficacies of Murraya koenigii leaves extract as natural antibacterial agents bythe ability to inhibit the growth of Escherichia coli and Staphylococcus aureus. The antibacterialactivities of formulated liquid hand soap with different concentrations (10, 30 and 50 mg/mL) ofM. koenigii extracts were determined by paper disc diffusion method. M. koenigii leaves extract at10 mg/mL concentration had the ability to inhibit the growth of both test microorganisms. Whereas,for liquid hand soap formulated with 10, 30 and 50 mg/mL M. koenigii extracts, inhibition zoneswere observed on S. aureus assay plates but not on E. coli. Hence, the results suggested that liquidhand soap containing M. koenigii extract had therapeutic potentials to prevent spread of skindiseases caused by S. aureus.

Note: Inhibition of Pathogenic Bacteria by Essential Oils at Different Concentrations

2003 ◽  
Vol 9 (2) ◽  
pp. 85-88 ◽  
Author(s):  
G. Özkan ◽  
O. Sağdiç ◽  
M. Özcan
Keyword(s):  
Essential Oils ◽  
Pathogenic Bacteria ◽  
Antibacterial Agents ◽  
Antimicrobial Effect ◽  
Inhibitory Effect ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
E Coli ◽  
Paper Disc

The antimicrobial effect of 11 selected Turkish spice essential oils was investigated against seventeen pathogenic bacteria. The antimicrobial activity of the essential oils of six spices (cumin, fennel, laurel, mint, marjoram, oregano, pickling herb, sage, savory, thyme (black) and thyme) was tested at four concentrations (0.2, 0.4, 1 and 2%) on various microorganisms ( E. aerogenes, E. coli, E. coli O157:H7, K. pneumoniae, P. vulgaris, S. enteritidis, S. gallinarum, S. typhimurium, S. aureus, Y. enterocolitica, A. hydrophila, C. xerosis, M. luteus, M. smegmatis, E. feacalis, P. aeruginosa and P. fluorescens). All preparations showed antibacterial activity against at least one or more bacteria. The inhibitory effect of the essential oils was evaluated through paper disc diffusion method. In general, the essential oils at 1 and 2% levels were effective. The most active essential oils were marjoram, thyme and oregano. According to the results, the studied essential oils potentially might be used as antibacterial agents to prevent the spoilage of food products, although further research is needed.

scholarly journals Antimicrobial resistance of non-clinical Escherichia coli strains from chicken in Nsukka, South-east Nigeria.

2021 ◽  
Vol 30 (1) ◽  
pp. 101-106
Author(s):  
K. F. Chah ◽  
S. C. Okafor ◽  
S. I. Oboegbulem
Keyword(s):  
Escherichia Coli ◽  
Drug Resistance ◽  
Antimicrobial Resistance ◽  
Antimicrobial Agents ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
E Coli ◽  
Sensitivity Tests ◽  
Resistance Patterns

This study was carried out to determine resistance profiles of Escherichia coli strains isolated from clinically healthy chickens in Nsukka, southeast Nigeria. A total of 324 E. coli strains isolated from cloaca swabs from 390 chickens were tested against 16 antimicrobial agents using the disc diffusion method. The antibiotics used in the study were: ampicillin (25µg), amoxycillin-clavulanic acid (30µg), gentamicin (10µg), Streptomycin (30µg). cefuroxime (20µg), cephalexin (10µg), nalidixic acid (30µg), ciprofloxacin (5µg), norfloxacin (10µg), ofloxacin (5µg), pefloxacin (5µg), tetracycline (30µg), chloramphenicol (10µg), cotrimoxazole (50µg), colistin (25µg) and nitrofurantoin (100µg).The strains demonstrated high rates of resistance (34.6%  66.1%) to ampicillin, tetracycline, nitrofurantoin, cefuroxime and cotrimoxazole. None of the isolates was resistant to colistin, ofloxacin and pefloxacin. For each antimicrobial agent (except cephalexin), strains from the intensively reared chickens (layers and broilers) displayed higher resistance frequencies than those from the local birds. A total of 49 resistant patterns were recorded for the 228 strains resistant to at least one antimicrobial drug, with AmTeCoS and AmTeCfN being the predominant patterns. Because of the great variation in the drug resistance patterns of the Escherichia coli strains, use of antimicrobial agents in the management of E. coli infections in the study area should be based on results of sensitivity tests.

scholarly journals Molecular Characterization of Ciprofloxacin Resistant Escherichia coli from Ghana

2020 ◽  
pp. 22-33
Author(s):  
Israel Mensah- Attipoe ◽  
Japheth A. Opintan ◽  
Mercy J. Newman ◽  
Prince Pappoe- Ashong
Keyword(s):  
Escherichia Coli ◽  
Resistance Genes ◽  
Test Method ◽  
Fluoroquinolone Resistance ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
E Coli ◽  
Inhibition Concentration ◽  
Genes Encoding

Aim: This study aimed to characterize ciprofloxacin-resistance genes in clinical Escherichia coli isolates obtained from a six-month antimicrobial resistance (AMR) surveillance from Ghana. Methods: Eighty-three of 440 archived E. coli isolates were confirmed by biochemical reactions and resistance profiles by the disc diffusion method. These isolates were cultured from urine (42), stool (23), vaginal swabs (12), wounds (5) and heart valve (1) during AMR surveillance. Minimum Inhibition Concentration (MIC) by E-test method was performed on all E. coli isolates that were resistant to ciprofloxacin by the disc diffusion method. Additionally, all isolates with reduced MIC to ciprofloxacin (>32 µg/ml) were selected for molecular assays.  Three chromosomal and nine plasmid-mediated resistance genes were screened in all Ciprofloxacin resistant E. coli (CRE) by polymerase chain reaction (PCR). Randomly selected amplified genes were commercially sequenced and analyzed. Results: In total, 47/83 (56.6%) E. coli isolates were resistant to ciprofloxacin and 29 (61.7%) had MIC values greater than 32 µg/ml. Chromosomal mediated genes (gyrA, gyrB and parC) were present in all 29 CRE isolates (100%). Distribution of the plasmid-mediated genes were as follows; qnrA 16/29 (55.1%), qnrB 16/29(55.1%), qnrC 22/29(75.8%), qnrS 26/29(89.6%), qepA 5/29(17.2%) and oqxB 19/29(65.5%). Genes encoding for altered aminoglycoside acetyltransferase [aac(6’)1bcr] were also present in all 29 CRE isolates. The majority (72.4%) of the CRE isolates had gyrA mutations at codons 83 and 87. In parC, the mutations were at codons 71 and 80. Five isolates had mutations at codon 56 and four each had mutations at positions 79 and 80. Conclusion: In this study, fluoroquinolone resistance genes were identified in all CRE isolates, mostly with putative mutations in the Quinolone Resistance Determining Region (QRDR). These chromosomal and plasmid-mediated genes may be widespread in Ghana and associated with CRE from the AMR surveillance. Although new mutations points were identified in parC, they may not be linked to the CRE.

scholarly journals Phytochemical screening and antimicrobial activity of extracts of Cassia alata L. leaves and seeds

2019 ◽  
Vol 51 (3) ◽  
pp. 378-383
Author(s):  
P. T. Q. Le
Keyword(s):  
Antimicrobial Activity ◽  
Inhibitory Concentration ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Phytochemical Screening ◽  
Disc Diffusion Method ◽  
Total Polyphenol ◽  
E Coli ◽  
Cassia Alata ◽  
Paper Disc

The aim of the study is to determine the presence of some bioactive compounds in Cassia alata L. leaves and seeds extracts such as tannins, saponins, anthraquinones and flavonoids. Total polyphenol contents (TPC) of leaves and seeds extracts are 59.211 mg GAE/g DW and 1.816 mg GAE/g DW, respectively, while their antioxidant capacities (AC) are 8.14 μmol Fe/g DW and 2.75 μmol Fe/g DW, respectively. The antimicrobial activity is determined by the paper disc diffusion method combined with the minimum inhibitory concentration (MIC). Leaves extract inhibits S. aureus and E. coli at MIC of 400 mg/mL; S. enteritidis and B. subtilis at MIC of 800 mg/mL. Besides, seeds extract also inhibits S. aureus at MIC of 200 mg/mL; E. coli, S. enteritidis and B. subtilis at MIC of 400 mg/mL. However, leaves and seeds extracts of C. alata do not show any inhibitions on the growth of A. niger. Keywords: Antibacterial activity, Antioxidant, Cassia alata L., Extract, MIC.

scholarly journals POTENSI ANTIBAKTERI BINTANG LAUT DARI PERAIRAN PANTAI KELURAHAN TONGKAINA MANADO

2019 ◽  
Vol 7 (3) ◽  
pp. 167
Author(s):  
Delpris Piter ◽  
Esther D Angkouw ◽  
Fitje Losung
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Streptococcus Agalactiae ◽  
Antibacterial Agents ◽  
Sea Water ◽  
Diffusion Method ◽  
E Coli ◽  
Linckia Laevigata ◽  
And Staphylococcus Aureus

Starfish is one of the species of the asteroidean class, and is grouped into phylum echinoderms. Echinoderms consist of approximately 6000 species and all live in sea water. Starfish is one source bioactive compounds. Active compounds from starfish have been known to have activities antioxidant, antibacterial, anti-inflammatory, antifungal and immunostimulatory, there are also blue starfish that are potential as antitumor and antibacterial agents. This study aims to obtain crude extracts from several types of starfish, and testing the antibacterial activity of crude starfish extracts against bacteria Streptococcus agalactiae, Escherichia coli and  Staphylococcus aureus. Test the antibacterial activity of crude starfish extracs Protoreaster nodosus, Achaster tipycus, dan Linckia laevigata against bacteria E. coli, S. aureus, dan S. agalactiae use the agar diffusion method by means of a well.  L. l extract  can inhibit bacteria e. coli at an extract concentration of 1000 mg/ml with a diameter of inhibitory zone 11.0 mm, whereas at a concentration of 750 mg/ml the test bacteria can still grow on the bacteria S. agalactiae and S. aureus can still grow even though the extract has be given  L. l Keywords: Potential Starfish, Antibacterial Activity, Staphylococcus aureus, Escherichia coli, and Streptococcus agalactiae Bintang laut merupakan salah satu spesies dari kelas Asteroidea, dan dikelompokkan kedalam filum Echinodermata. Filum Echinodermata  terdiri atas kurang lebih 6000 spesies dan semuanya hidup di air laut. Bintang laut  merupakan salah satu sumber penghasil senyawa bioaktif. Senyawa aktif dari bintang laut telah diketahui memiliki aktivitas antioksidan, antibakteri, antiinflamasi, antifungi dan imunostimulator, ada juga bintang laut biru yang potensial sebagai antitumor dan agen antibakteri. Penelitian ini bertujuan untuk mendapatkan ekstrak kasar dari beberapa jenis bintang laut, dan menguji aktivitas antibakteri ekstrak kasar bintang laut terhadap bakteri Streptococcus agalactiae, Escherichia coli dan  Staphylococcus aureus. Uji aktivitas antibakteri dari ekstrak kasar bintang laut Protoreaster nodosus, Achaster tipycus, dan Linckia laevigata terhadap bakteri E. coli, S. aureus, dan S. agalactiae mengggunakan metode difusi agar dengan cara sumur. Ekstrak L. l mampu menghambat bakteri E.coli pada konsentrasi ekstrak 1.000 mg/ml dengan diameter zona hambat 11.0 mm, sedangkan pada konsentrasi 750 mg/ml bakteri uji masih bisa bertumbuh pada bakteri S. agalactiae dan S. aureus masih dapat bertumbuh walaupun telah diberikan ekstrak L. l.Kata Kunci : Potensi Bintang Laut, Aktivitas Antibakteri, Streptococcus agalactiae, Escherichia coli and  Staphylococcus aureus

scholarly journals Comparison between Exposure of Ciprofloxacin and Cefotaxime on Developing of Escherichia coli ESBL

2020 ◽  
Vol 56 (2) ◽  
pp. 86
Author(s):  
Muhammad Amin ◽  
Eddy Bagus Wasito ◽  
Erwin Astha Triyono
Keyword(s):  
Escherichia Coli ◽  
Screening Test ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Esbl Production ◽  
Disc Diffusion Method ◽  
Chi Square ◽  
E Coli

This study aimed to compare ciprofloxacin and cefotaxime exposure to develop ESBL producing Escherichia coli (E. coli). A total of 16 isolates of cefotaxime sensitive E. coli and ciprofloxacin were exposed to ciprofloxacin and cefotaxime for 14 days using the Kirby-Bauer antibiotic disc diffusion method. Colonies that grew on the edge of the inhibiting zone were exposed each day by the same method. Furthermore, we observed the occurrence of resistance to cefotaxime as ESBL screening test. Isolates were resistant, the following day the ESBL was confirmed by the Modified Double Disk Sinergy Test (MDDST) method using Cefotaxime (CTX), Ceftazidime (CAZ), Aztreonam (ATM), and Amoxilin Clavulanate (AMC) antibiotic discs. From 16 isolates of ESBL producing E. coli exposed to ciprofloxacin, it was obtained 4 (25%) to ESBL E. coli. ESBL production occurred after E. coli was exposed to ciprofloxacin on days 5, 6, 7, and 12. While those exposed to cefotaxime none becomes ESBL E. coli. There was no difference between ciprofloxacin and cefotaxime exposure to develop ESBL producing E. coli (p=0.101; Chi-square).

scholarly journals AKTIVITAS ANTIBAKTERI EKSTRAK ETANOL DAUN DADAP SEREP (Erythrina lithosperma Miq.) TERHADAP PERTUMBUHAN Escherichia coli

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Asep Abdul Rahman ◽  
Ridwan Firmansyah ◽  
Lulu Setyabudi
Keyword(s):  
Escherichia Coli ◽  
Antibacterial Activity ◽  
Abdominal Pain ◽  
Leaf Extract ◽  
Ethanol Extract ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Activity Test ◽  
Paper Disc

Dadap Serep (Erythrina lithosperma Miq.) is one of the plants containing secondary metabolites in the form of alkaloids, flavonoids and tannins. Empirically dadap serep can be used to treat fever, abdominal pain, breast milk, prevent miscarriage, inflammation and cough. The aim of this research is to know the activity of ethanol extract in dadap serep (Erythrina lithosperma Miq.) in inhibiting growth of Escherichia coli ATCC 8939. The dadap serep leaves were extracted by maceration method using 96% ethanol solvent. The leaf thickness extract of dadap serep with concentration of 20%, 40%, 60% and 80% tested its antibacterial activity against growth of Escherichia coli ATCC 8939 using paper disc diffusion method. The result of concentration of leaf extract of dadap serep, obtained rendemen as much as 23,53%. Then the result of antibacterial activity test showed that leaf extract of dadap serep with concentration of 20% had no inhibition to growth of Escherichia coli ATCC 8939, while at concentration extract 40%, 60%, and 80% had inhibitory to growth of Escherichia coli ATCC 8939 with category weak resistor response.Keywords: Dadap serep (Erythrina lithosperma Miq.), Antibacterial activity, Escherichia coli ATCC 8939

scholarly journals Isolasi Bakteri Asam Laktat dari Usus Sapi (Bos taurus) serta Kemampuannya dalam Menghambat Pertumbuhan Bakteri Eschericia coli dan Shigella sp

2019 ◽  
Vol 1 (1) ◽  
pp. 21-27
Author(s):  
Lulu Fatma Dewi ◽  
Sartini Sartini ◽  
Rahmiati Rahmiati
Keyword(s):  
Escherichia Coli ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Bos Taurus ◽  
Inhibition Zone ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Positive Results ◽  
Paper Disc

The purpose of this research was to determine the ability of BAL from cattle intestine (Bos taurus) in inhibiting the growth of Eschericia coli and Shigella sp. Testing of BAL capability in inhibiting growth of Escherichia coli and Shigella sp. using the disc-diffusion method or the Kirby-Bauer method, which was done by measuring the inhibit zone around the paper disc. Data were analyzed descriptively by displaying data in table and picture form. The results obtained 2 isolates of BAL from the cow intestine. All isolates showed positive results when tested for antibacterial against Escherichia coli and Shigella sp. In isolate BAL with code sp1 has inhibition zone against Escherichia coli equal to 7.5 mm and to Shigella sp. of 6.8 mm, whereas in isolate BAL with code sp2 has inhibition zone against Escherichia coli equal to 8.9 mm and to Shigella sp. of 8.0 mm. Based on the results obtained, it can be concluded that isolates of lactic acid bacteria with sp2 code has inhibition zone 8.9 mm in inhibiting Eschericia coli while against bacteria Shigella sp. has a diameter of 8.0 mm.

scholarly journals Antimicrobial and antibiofilm effects of Satureja hortensis essential oil against Escherichia coli and Salmonella isolated from poultry

2021 ◽  
Author(s):  
Mohammad Haji Seyedtaghiya ◽  
Bahar Nayeri Fasaei ◽  
Seyed Mostafa Peighambari
Keyword(s):  
Escherichia Coli ◽  
Essential Oil ◽  
Biofilm Formation ◽  
Antibacterial Agents ◽  
Health Concern ◽  
Diffusion Method ◽  
Economic Losses ◽  
Disc Diffusion ◽  
E Coli ◽  
Satureja Hortensis

Background and Objectives: Escherichia coli and some Salmonella serovars cause various disease manifestations in poultry leading to significant economic losses. The widespread and imprudent use of antibacterial agents in poultry flocks have increased resistant to many antibacterial agents which has become a major public health concern. Some medicinal plants may be alternative to antibacterial agents. The purpose of this study was to investigate the antibacterial and anti-biofilm activity of summer savory essential oil against E. coli and Salmonella isolated from poultry. Materials and Methods: The essential oil was extracted using a Clevenger apparatus and subsequently its compounds were determined using GC-MS. Antibacterial properties of essential oil were determined by disc diffusion method, minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). To evaluate the anti-biofilm properties the Microtiter plate test was used. Herbal essential oil was extracted and its compounds were identified correctly. Results: The major components of Satureja hortensis essential oil were thymol (41.28%), γ-terpinene (37.63%), p-cymene (12.2%) and α-terpinene (3.52%). The inhibition zone diameter in the disc diffusion test for E. coli and Salmonella were 32 ± 3 and 38 ± 4 mm, respectively, which was confirmed by MIC and MBC values. Regarding anti-biofilm activity, the MIC/2 concentration of S. hortensis significantly inhibited biofilm formation of E. coli. However, inhibition of biofilm formation of Salmonella was shown at concentration of MIC/2 and MIC/4. Conclusion: Based on our results, S. hortensis essential oil showed the growth inhibition and bactericidal activity against E. coli and Salmonella. Moreover, this study demonstrated anti-biofilm activity of S. hortensis essential against both tested bacteria.

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.

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