Naslov
Toxicity of dodecylpyridinium and cetylpyridinium clorides against phosphate-accumulating bacterium

Autori
Hrenović, Jasna ; Ivanković, Tomislav ; Sekovanić, Lavoslav ; Rožić, Mirela

Izvornik
Central European Journal of Biology (1895-104X) 3 (2008), 2; 143-148

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Bacteria ; Cetylpyridinium ; Dodecylpyridinium ; Phosphate ; Surfactant ; Toxicity

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Biologija, Grafička tehnologija

POVEZANOST RADA