Journal of microscopy and ultrastructure · 2021
Aesculus hippocastanum-Derived Extract β-Aescin and In vitro Antibacterial Activity.
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Dahash Salma L, Abass Ourba K, Abdul-Razaq Myada M, Al-Kuraishy Hayder M, Al-Gareeb Ali I
Аннотация
OBJECTIVES: The objective of this study was to investigate the antibacterial activity of β-aescin against common Gram-negative and Gram-positive bacteria.
MATERIALS AND METHODS: Agar well diffusion assay was used to determine the antibacterial activity of β-aescin against common Gram-negative and Gram-positive bacteria including Klebsiella pneumoniae, Escherichia coli, Staphylococcus epidermidis, Staphylococcus aureus, and Pseudomonas aeruginosa. Minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) of β-aescin were evaluated by serial dilution method.
RESULTS: β-aescin led to significant antibacterial effects on the tested Gram-negative and Gram-positive bacteria compared to the negative control, P < 0.05 for K. pneumoniae and P. aeruginosa and P < 0.01 for E. coli, S. epidermidis, and S. aureus. On the other hand, β-aescin produced a comparable less antibacterial effect on K. pneumoniae, E. coli, and P. aeruginosa compared to the positive control, P < 0.01, whereas β-aescin illustrated a comparable effect with that of the positive control on Gram-positive S. epidermidis, P = 0.05. Furthermore, β-aescin illustrated a concentration-dependent antibacterial effect against Gram-positive S. epidermidis and S. aureus compared to the different concentrations, P < 0.01. MIC and MBC of β-aescin were high for Gram-negative bacteria and low for Gram-positive bacteria compared to MIC of the positive control.
CONCLUSIONS: β-aescin is an effective antibacterial herb mainly against Gram-positive S. epidermidis and S. aureus in a concentration-dependent manner.
MATERIALS AND METHODS: Agar well diffusion assay was used to determine the antibacterial activity of β-aescin against common Gram-negative and Gram-positive bacteria including Klebsiella pneumoniae, Escherichia coli, Staphylococcus epidermidis, Staphylococcus aureus, and Pseudomonas aeruginosa. Minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) of β-aescin were evaluated by serial dilution method.
RESULTS: β-aescin led to significant antibacterial effects on the tested Gram-negative and Gram-positive bacteria compared to the negative control, P < 0.05 for K. pneumoniae and P. aeruginosa and P < 0.01 for E. coli, S. epidermidis, and S. aureus. On the other hand, β-aescin produced a comparable less antibacterial effect on K. pneumoniae, E. coli, and P. aeruginosa compared to the positive control, P < 0.01, whereas β-aescin illustrated a comparable effect with that of the positive control on Gram-positive S. epidermidis, P = 0.05. Furthermore, β-aescin illustrated a concentration-dependent antibacterial effect against Gram-positive S. epidermidis and S. aureus compared to the different concentrations, P < 0.01. MIC and MBC of β-aescin were high for Gram-negative bacteria and low for Gram-positive bacteria compared to MIC of the positive control.
CONCLUSIONS: β-aescin is an effective antibacterial herb mainly against Gram-positive S. epidermidis and S. aureus in a concentration-dependent manner.