Naslov
Enrichment and Characterization of Atrazine Mineralizing Bacterial Communities

Autori
Hršak, Dubravka ; Udiković, Nikolina ; Begonja Kolar, Ana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
The world of microbes / ? - Pariz : EDK. Medical and Scientific International Publisher, 2002, 212-212

Skup
The World of Microbes, Xth International Congress of Bacteriology and Applied Microbiology

Mjesto i datum
Pariz, Francuska, 27.07.2002. - 01.08.2002

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
??

Sažetak
The objectives of the present study were to characterize atrazine mineralizing bacterial communities enriched from different environments, especially to determine the factors that govern their biotransformation activities and to evaluate their potential effectiveness in the treatment of effluents from atrazine production. Four bacterial communities were enriched (two originating from industrial effluents, one from the soil within the factory exposed for many years to repeated spills of the effluent from atrazine synthesis and one from undisturbed meadow soil never treated with atrazine) following continuous cultivation in activated sludge units with the inflow of mineral salts medium (MSM) containing 50 mg/L of atrazine and 50 mg/L of yeast extract at a dilution rate (D) of 0.1 1/h. All enriched communities showed substantial atrazine mineralizing activity (monitored by HPLC analyses and carbon dioxide evolution test) under waste water treatment conditions (ambient temperature, pH around 7) in MSM medium with atrazine as the only carbon and nitrogen source. In most cases the amendment of sodium citrate to MSM medium significantly stimulated atrazine catabolism leading to complete atrazine mineralization (80% of total carbon released as CO2).

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

Napomena
NEPOTPUN BIBLIOGRAFSKI ZAPIS!!

POVEZANOST RADA