Isolation, purification and partial characterization of pyocyanin and rhamnolipids from Pseudomonas aeruginosa BTRY1
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Characterization of pyocyanin with radical scavenging and antibiofilm properties isolated from Pseudomonas aeruginosa strain BTRY1
A biomolecule namely pyocyanin was isolated from Pseudomonas aeruginosa (BTRY1). It was confirmed by UV-Vis spectrum with absorption maxima at 270 nm and was further characterized using Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR). Spectroscopy analyses showed the presence of relevant bonds in their respective structures. Although pyocyanin had antihemolytic, antioxida...
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Rhamnolipids are a class of biosurfactants which contain rhamnose as the sugar moiety linked to β-hydroxylated fatty acid chains. Rhamnolipids can be widely applied in many industries including petroleum, food, agriculture and bioremediation etc. Pseudomonas aeruginosa is still the most competent producer of rhamnolipids, but its pathogenicity may cause safety and health concerns during large-s...
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Of 72 clinical isolates of Pseudomonas aeruginosa examined for simultaneous production of secondary metabolites, 86% produced 2-alkyl-4-hydroxyquinolines, 75% produced rhamnolipids, and 58% produced phenazines, including pyocyanin. Whereas isolates producing two or one constituted smaller groups, 39% released all three metabolites. Metabolite production did not appear to influence site of infec...
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Pseudomonas aeruginosa is an opportunistic pathogen that causes serious human infections. The study of quorum sensing (QS) and its relation to various virulence factors among Pseudomonas clinical isolates could play an important role in eliminating its pathogenicity. C12HSL and C4-HSL are the key regulatory QS signals in P. aeruginosa. In the following study, QS signals and virulence factors; e...
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تاریخ انتشار 2016