Abstract :
Abstract The gram-positive bacterium Streptococcus pneumoniae is responsible for a number of serious diseases such as pneumonia, septicemia and meningitis. When it comes to pneumococcal pathophysiology, host nutrients including purines, pyrimidines, amino acids and carbon sources are absolutely crucial. If we want to know how S. pneumoniae adapts to the host environment during infection and find new therapeutic targets, we need to investigate its metabolism. The purpose of this study was to investigate the antibacterial effects of the medicinal herbs Equisetum arvense, Althaea rosea, Nigella sativa and Foeniculum vulgare by analyzing the bioactive volatile compounds generated by Streptococcus pneumoniae. GC-MS analysis of Streptococcus pneumoniae found: ethyl 2-methoxycarbonyloxytetradecanoate, ethyl-N-ethoxycarbonylcabamate, prop-2-enylnonanoate, butane, 1,1-dibutoxy-3-methyl, ethanol, 2,2'-oxybis -, diacetate , hexadecane, butanedioic acid, diethyl ester, 4-methylthio-4-methyl-2-pentnone, 1-phenylethyl hydroperoxide, p-dioxne, methylene. Bioactivity of the ethanol extract of the bacterial product Streptococcus pneumoniae against four microorganisms Bacillus cereus (18.01±0.07, 11.90±0.03, and 15.88 ±0.04), Klebsiella pneumoniae (15.00±0.04, 10.05±0.02, and 12.07±0.04), Staphylococcus epidermidis (17.43±0.06, 14.20±0.04, and 13.34±0.04), Enterobacter aerogenes (16.20±0.07, 11.03±0.02, and 14.52±0.03). In Figure 1, 2, 3, and 4, the metabolites of Streptococcus pneumoniae demonstrated a noteworthy level of action against Bacillus cereus, (18.01±0.07).
Keyword :
Keywords: Streptococcus pneumoniae, Secondary metabolites, Antibacterial, GC/MS.