Evaluation of the Antibacterial Activity and Phytochemical Screening of Nuxia congesta Leaf in Gondar, Northern Ethiopia

2018 ◽  
Vol 09 (03) ◽  
Author(s):  
Sisay Alemu ◽  
Shimelis Mengistu ◽  
Robsan Tasisa ◽  
Ambaye Kenubih
Keyword(s):  
Antibacterial Activity ◽  
Northern Ethiopia ◽  
Phytochemical Screening

Antibacterial Activity and Phytochemical Screening of Olea Europaea Leaves from Algeria

2012 ◽  
Vol 3 (1) ◽  
pp. 66-69 ◽  
Author(s):  
Nahal Bouderba Nora ◽  
Kadi Hamid ◽  
Moghtet Snouci ◽  
Meddah Boumedien ◽  
Moussaoui Abdellah
Keyword(s):  
Antibacterial Activity ◽  
Olea Europaea ◽  
Phytochemical Screening ◽  
Olea Europaéa

scholarly journals Antibacterial Activity of Leaf Extracts ofBaeckea frutescensagainst Methicillin-ResistantStaphylococcus aureus

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Somayeh Razmavar ◽  
Mahmood Ameen Abdulla ◽  
Salmah Binti Ismail ◽  
Pouya Hassandarvish
Keyword(s):  
Antibacterial Activity ◽  
Ethanol Extract ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Phytochemical Screening ◽  
Bioactive Constituents ◽  
Disc Diffusion Method ◽  
Leaf Extracts ◽  
Baeckea Frutescens ◽  
High Degree

This study was based on screening antibacterial activity of the ethanol extract ofBaeckea frutescensL. against MRSA clinical isolates, analyzes the potential antibacterial compound, and assesses the cytotoxicity effect of the extract in tissue culture. Leaves ofBaeckea frutescensL. were shade dried, powdered, and extracted using solvent ethanol. Preliminary phytochemical screening of the crude extracts revealed the presence of alkaloids, flavonoids, steroids, terpenoids, phenols, and carbohydrates. The presence of these bioactive constituents is related to the antibacterial activity of the plant. Disc diffusion method revealed a high degree of activity against microorganisms. The results confirm thatBaeckea frutescensL. can be used as a source of drugs to fight infections caused by susceptible bacteria.

In-Vitro Studies on the Sensitivity of Staphylococcus aureus to Some Ethno-Medicinal Preparations Sold around Kano, Nigeria

2011 ◽  
Vol 4 (1) ◽  
pp. 22-25 ◽  
Author(s):  
M Bashir ◽  
I Yusuf ◽  
AS Kutama
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Minimum Inhibitory Concentration ◽  
Inhibitory Concentration ◽  
Test Organism ◽  
Ethanolic Extract ◽  
Screening Tests ◽  
Phytochemical Screening ◽  
Herbal Preparations

Five traditional herbal preparations were sampled between May-June, 2009 in Kano. The samples were investigated for invitro antibacterial activities against clinical isolates of Staphylococcus aureus. Likewise, phytochemical screening tests were conducted to determine some of the phytochemicals present in the ethanolic and water extracts of the samples. Various concentrations of the extracts were prepared using serial doubling dilutions (5000=l/ml, 2500=g/ml, 1250=g/ml, 625=g/ml and 312.5=g/ml). All the test extracts showed slight antibacterial activity against the test organism, with ethanolic extract of sample E having the highest zone diameter of inhibition, while sample H had the lowest diameter of inhibition. The standard antibiotic disc (Gentamicin) had demonstrated the highest activity on the test organisms. The results of the Phytochemical screening revealed the presence of steroid in all the samples, tannin in samples A, C, D and E, reducing sugars in sample A, D and E respectively. The result of the minimum inhibitory concentration (MIC) was found to be above 312.5=g/ml for samples C, D and E. Keywords: Staphylococcus aureus, Herbal preparations, antibacterial activity, Phytochemical screening and minimum inhibitory concentration.

scholarly journals Preliminary phytochemical screening and susceptibility of bacteria pathogens to whole extract of evolvulus alsinoides (L.)

1970 ◽  
Vol 18 ◽  
pp. 16-20
Author(s):  
BA Omogbai ◽  
FA Eze
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Antibacterial Activity ◽  
Bacillus Cereus ◽  
Pathogenic Bacteria ◽  
Volatile Oil ◽  
Salmonella Typhi ◽  
Phytochemical Screening ◽  
Evolvulus Alsinoides ◽  
And Staphylococcus Aureus

Context: Plant based antimicrobial represent a vast untapped source for medicines and further exploration of plant antimicrobial neeto occur. Evolvulus alsinoides (L) (Convolvulaceae) is a perennial herb is used in traditional medicine in East Asia, India, Africa and Philippines to cure fever, cough, cold, venereal diseases, azoospermia, adenitis and dementia.   Objective: The objective of this research was to evaluate the antimicrobial activity of the extracts of E. alsinoides on some clinical microbial isolates.   Materials and Methods: The ed thanolic and aqueous extracts of the whole plant (leaves and twigs) were analysed for alkanoids, tannins, glycosides, steroids, flavonoids, saponins, volatile oil and resins. The determination of antibacterial activity was done using the agar well diffusion technique. Pure cultures of pathogenic bacteria such as Bacillus cereus, Staphylococcus aureus, Micrococcus leutus, Klebsiella Pneumoniae, Pseudomonas aeruginosa, Escherichia coli and Salmonella typhi were used for antibacterial activity assay, minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC).   Results: The ethanolic extract of the plant had MIC values ranging from 16 mg/ml to 512.5 mg/ml. The least MIC was 16mg-ml against Salmonella typhi while Bacillus cereus and Staphylococcus aureus showed the highest MIC of 512.5 mg-ml. In the aqueous extract the MIC ranged between 512.5 to >1025 mg/ml. Salmonella typhi, Micrococcus luteus and Staphylococcus aureus were not inhibited by the water extract. Phytochemical result showed ethanol to be a better solvent for the extraction of the bioactive agents in this plant which include: glycosides, alkaloids, saponins, tannins, flavonoids and volatile oil.   Conclusion: In this study the gram-negative organisms had the lowest MICs and MBCs. This suggests their higher susceptibility to the extract of this plant. On the basis of the result obtained in this investigation it can be concluded that ethanol extract of Evolvulus alsinoides had significant in vitro broad spectrum antimicrobial activity.   Keywords: Evolvulus alsinoides; Phytochemical screening; Antibacterial activity. DOI: http://dx.doi.org/10.3329/jbs.v18i0.8769 JBS 2010; 18(0): 16-20

Phytochemical Screening, Antibacterial and Synergistic activity of Dittrichia Viscosa Extracts against Multi-Resistant Pathogenic Bacteria

2019 ◽  
Vol 2 (1) ◽  
pp. 01-06
Author(s):  
Rhazi Fouzia
Keyword(s):  
Antibacterial Activity ◽  
Pathogenic Bacteria ◽  
Antibacterial Effect ◽  
Synergistic Activity ◽  
Phytochemical Screening ◽  
Bacterial Strains ◽  
Dittrichia Viscosa ◽  
Study Results ◽  
Ethanolic Extracts

Study contextual: Faced with the global problem of antimicrobial resistance, and the use of traditional medicine for the research of antibacterial biomolecules. Aim: our work focused on the valorization of a medicinal plant Dittrichia viscosa which has many therapeutic and culinary virtues worldwide. Methods: To do this, a phytochemical screening of the leafy stems of the plant is carried out according to a set of physicochemical reactions, as well as an in vitro evaluation of the antibacterial activity, of the aqueous and ethanolic extracts against multi-resistant bacterial strains, by microdilution technique on microplates. An evaluation of the synergistic interaction between extracts and weakened antibiotics against pathogenic bacteria was also highlighted in this study. Results: The tests revealed the richness of Dittrichia viscosa species by tannins, flavonoids, saponosides, sterols and triterpenes. As for the antibacterial effect, the MICs range from 0.858±0.29 to 66.66 ± 0.00 mg / ml and the MBCs from 4.300 ± 1.01 to 11.610 ± 2.31 mg / ml is an interesting antibacterial activity. Regarding the combination of extracts with antibiotics tested, it revealed a synergistic action inducing an amplification of the antibacterial power of Penicillin, Imipenem and Erythromycin with a rate that reaches 471%. Conclusion: The results of this study show that the aqueous and ethanolic extracts of Dittrichia viscosa have interesting and promising antibacterial activity in the pharmaceutical, food and cosmetic industries.

UJI AKTIVITAS ANTIBAKTERI EKSTRAK ETANOL 96% DAUN MIMBA (Azadirachta indica A. Juss. ) DENGAN METODE EKSTRAKSI PERKOLASI TERHADAP PERTUMBUHAN BAKTERI

2020 ◽  
Vol 2 (1) ◽  
pp. 102
Author(s):  
Yanu Andhiarto ◽  
Rina Andayani ◽  
Nur Hidayatul Ilmiyah
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Ethanol Extract ◽  
Skin Inflammation ◽  
Screening Tests ◽  
Diffusion Method ◽  
Moderate Activity ◽  
Phytochemical Screening ◽  
Strong Activity ◽  
Activity Test

Skin infections most often found in developing countries, especially in the tropics, are purulent skin inflammation (pyoderma), the main cause of Staphylococcus aureus. The increasing number of cases of bacteria that are resistant to antibacterial can encourage the extraction of sources of antibacterial drugs from natural ingredients. One of the plants that is thought to have the antibacterial activity of Staphylococcus aureus is the Neem plant. In this study an antibacterial activity test was carried out with the well diffusion method from 96% ethanol extract of Mimba leaves extracted by percolation method. Previously 96% ethanol extract from Mimba leaves had been identified by secondary metabolites by phytochemical screening and standardized extract testing. Standarization using non-specific parameters (moisture content, ash content and drying losses) found that 96% ethanol extract of Mimba leaves entered a range of standard parameters and in phytochemical screening tests obtained 96% ethanol extract of Mimba leaves containing alcaloid, saponins, tannins, steroids / terpenoids and flavonoids. The results of the study on the antibacterial activity test showed a concentration of 75% ethanol extract of 96% Mimba leaves classified as having strong activity, at a concentration of 50% and 25% classified as having moderate activity. Based on this study it can be concluded that the three concentrations of 96% ethanol extract of Mimba leaves were able to inhibit the growth of Staphylococcus aureus bacteria.

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