Toxicity of dodecylpyridinium and cetylpyridinium clorides against phosphate-accumulating bacterium (CROSBI ID 137486)
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Hrenović, Jasna ; Ivanković, Tomislav ; Sekovanić, Lavoslav ; Rožić, Mirela
engleski
Toxicity of dodecylpyridinium and cetylpyridinium clorides against phosphate-accumulating bacterium
The antibacterial effect of cationic surfactants against the pure culture of phosphate (P)-accumulating bacterium Acinetobacter junii was investigated. The estimated EC50 values of the N- dodecylpyridinium chloride (DPC) for growth inhibition was 1.4± ; 0.5 x 10-6 mol L-1 and for the inhibition of the P-uptake rates 7.3± ; 2.6 x 10-5 mol L-1. The estimated EC50 values of the N-cetylpyridinium chloride (CPC) for growth inhibition was 4.9± ; 1.3 x 10-7 mol L-1 and for the inhibition of the P-uptake rates 7.7± ; 2.9 x 10-6 mol L-1. This suggests the importance of controlling the amounts of cationic surfactants in influent of the wastewater treatment systems in order to avoid the possible failure of the biological P removal from wastewaters.
Bacteria ; Cetylpyridinium ; Dodecylpyridinium ; Phosphate ; Surfactant ; Toxicity
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Biologija, Grafička tehnologija, Kemija