Naslov
Immobilization of Acinetobacter baumannii onto natural zeolite dependent on the nutrient concentration of water media

Autori
Ivanković, Tomislav ; Hrenović, Jasna ; Dekić, Svjetlana ; Tibljaš, Darko ; Durn, Goran

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 7th Slovenian-Serbian-Croatian Symposium on Zeolites / Zabukovec Logar, Nataša ; Rajić, Nevenka ; Bronić, Josip - Zagreb : Hrvatska zeolitna udruga (HZU), 2017, 51-55

Skup
7th Slovenian-Serbian-Croatian Symposium on Zeolites

Mjesto i datum
Ljubljana, Slovenija, 25.05.2017. - 27.05.2017

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
bacteria ; chemical oxygen demand ; immobilization ; zeolitized tuff

Sažetak
An emerging hospital pathogen, bacterium Acinetobacter baumannii occurs in the natural environment influenced by human liquid or solid waste. Bacterial biofilm formation on abiotic or biotic solid surfaces is considered as an important virulence factor of this pathogen. There are no data on the quantification of viable bacterial cells of A. baumannii (either of clinical or environmental origin) that are immobilized onto the solid surfaces. In this study, the environmental isolate of A. baumannii was immobilized onto the particles of natural zeolitizied tuff (NZ) at 20°C in the water media of different nutrient concentrations. Numbers of immobilized viable bacterial cells ranged from 6.7-9.1 log CFU/g. The intensity of bacterial immobilization onto the NZ was a function of total bacterial concentration which was statistically significantly positively correlated with the COD of surrounding water media. Immobilization of bacteria onto the NZ occurred via the bacterial extracellular substances that enable longer survival of bacteria in the environment. The presence of A. baumannii in the natural environment will possess a serious public health concern about the spread of this emerging human pathogen.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Biologija

POVEZANOST RADA