scholarly journals Comparison of Antibacterial Activity of Sambiloto (Andrographis paniculata) Ethanol and Water Stem Extract Against Methicillin-Resistant Staphylococcus aureus (MRSA) ATCC 3351 In Vitro

2020 ◽  
Vol 5 (2) ◽  
pp. 69-76
Author(s):  
Ni Wayan Sinta Devi Arini ◽  
Bagus Komang Satriyasa ◽  
I Made Jawi ◽  
Agung Wiwiek Indrayani
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Andrographis Paniculata ◽  
Control Group ◽  
Inhibitory Zone ◽  
Control Group Design ◽  
Methicillin Resistant ◽  
Stem Extract

Background: Methicillin-resistant Staphylococcus aureus (MRSA) is penicillin and cephalosporine resistant Staphylococcus aureus which is a major cause of nosocomial infection. Various studies have been conducted for resistant cases, especially herbs which have antibacterial activity. Sambiloto (Andrographis paniculata) is an example of herb which has antibacterial activity due to the presence of andrographolide. Andrographolide soluble in ethanol and poorly in water, while extraction with alcohol causes andrographolide’s degradation. This study aimed to investigate the antimicrobial activity of ethanol and water stem extract and compare them against MRSA ATCC 3351 in vitro.Methods: This is an experimental study with a post-test only control group design and conducted by disc diffusion technique to obtain an inhibition zone against MRSA.Result: The result of this study showed the mean inhibitory zone of ethanol stem extract was 5,87mm, 6,77mm, 7,87mm respectively for 25%, 50%, and 100% concentrations, while 1% concentration did not show antibacterial activity. Water stem extract at 1%, 25%, 50%, and 100% concentrations showed mean inhibitory zone was at 4,57mm, 7,17mm, 8,67mm, and 9,67mm respectively.Conclusion: Ethanol and water stem extract showed antibacterial activity against MRSA. The independent sample t-test didn’t show a difference between ethanol and water stem extract of Andrographis paniculata toward MRSA (p>0,05).

scholarly journals Antibacterial Activity of Lumbricus Rubellus Earthworm Extract Against Porphyromonas Gingivalis as the Bacterial Cause of Periodontitis

2019 ◽  
Vol 7 (6) ◽  
pp. 1032-1036 ◽  
Author(s):  
I Gusti Agung Ayu Dharmawati ◽  
Tjokorda Gde Bagus Mahadewa ◽  
I Putu Eka Widyadharma
Keyword(s):  
Antibacterial Activity ◽  
Treatment Group ◽  
Lumbricus Rubellus ◽  
Control Group ◽  
Inhibitory Zone ◽  
Control Group Design ◽  
Zone Diameter ◽  
Significant Difference ◽  
The Mean

AIM: The purpose of this study was to determine the antibacterial activity of Lumbricus rubellus earthworms through inhibitory zone diameter to the growth of the bacterium Phorphyromonas gingivalis as the cause of periodontitis. METHODS: This was an experimental study with randomised posttest-only control group design. The study was conducted at the Microbiology Research Center laboratory at the Faculty of Dentistry, Airlangga University, Indonesia. The study was conducted in vitro, the sample size was calculated using the Federer formula as many as four agar plates containing bacteria Phorphyromonas gingivalis, with each plate given five different treatments: control (ethanol), Lumbricus rubellus earthworm extract (ECT) with concentrations of 50%, 25%, 12.5%, and 6.25% respectively. The data in the form of inhibition zone diameter (measured in millimetres) obtained were tested using One-Way ANOVA. RESULTS: The mean diameter of the inhibitory zone extract of Lumbricus rubellus earthworm on the growth of Phorphyromonas gingivalis bacteria in the treatment group had significant differences (p < 0.05). The mean inhibition zones between controls and the ECT treatment group (ECT 50%, ECT 25%, ECT 12.5%) were statistically different (p < 0.05), in contrast with ECT 6.25% (p > 0.05) which did not show significant difference with the control group (p > 0.05). CONCLUSION: Lumbricus rubellus earthworm extract with a concentration of 50% has the largest diameter of the inhibitory zone on the growth of the Phorphyromonas gingivalis bacteria. The 6.25% earthworm extract showed no antibacterial activity against the growth of Phorphyromonas gingivalis bacteria.

Unveiling the bioactivity of Allium triquetrum L. lipophilic fractions: chemical characterization and in vitro antibacterial activity against methicillin-resistant Staphylococcus aureus

2020 ◽  
Vol 11 (6) ◽  
pp. 5257-5265
Author(s):  
Samia Rabah ◽  
Kahina Kouachi ◽  
Patrícia A. B. Ramos ◽  
Ana Peixoto Gomes ◽  
Adelaide Almeida ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Antibacterial Agents ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Chemical Characterization ◽  
Value Added ◽  
Lipophilic Compounds ◽  
Methicillin Resistant ◽  
In Vitro Antibacterial Activity

Allium triquetrum L. bulbs, flowers and leaves are proved to be valuable sources of value-added lipophilic compounds, specifically as antibacterial agents against methicillin-resistant Staphylococcus aureus.

scholarly journals Antibacterial Activity of Silver Nanoparticles (AgNP) Confined to Mesostructured, Silica-Based Calcium Phosphate against Methicillin-Resistant Staphylococcus aureus (MRSA)

Nanomaterials ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1264
Author(s):  
Jung-Chang Kung ◽  
Wei-Hsun Wang ◽  
Chung-Lin Lee ◽  
Hao-Che Hsieh ◽  
Chi-Jen Shih
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Ceramic Powders ◽  
Methicillin Resistant ◽  
Bioactive Ceramic ◽  
Colony Forming Capacity ◽  
Phosphate Buffered Saline ◽  
Kinetics Of

Staphylococcus aureus, which is commonly found in hospitals, has become a major problem in infection control. In this study, Ag/80S bioactive ceramics used for enhanced antibacterial applications have been developed. An in vitro bioactivity test of the Ag/80S bioactive ceramic powders was performed in a phosphate-buffered saline (PBS). To explore the antibacterial activity of the Ag/80S bioactive ceramic powders, the Kirby-Bauer susceptibility test, the kinetics of microbial growth analysis and the colony-forming capacity assay were used to determine their minimum inhibitory concentration (MIC) against methicillin-resistant Staphylococcus aureus (MRSA). The results confirmed that the Ag/80S bioactive ceramic powders have antibacterial activity against MRSA (ATCC 33592) and MRSA (ATCC 49476).

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