کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4486992 | 1317008 | 2006 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Exopolymeric production by bacterial strains isolated from activated sludge of paper industry Exopolymeric production by bacterial strains isolated from activated sludge of paper industry](/preview/png/4486992.png)
The bacteria originated from the paper mill sludge were identified, isolated and cultured. Enterobacter (E) and Klebsiella (K) represented 70% of the culturable aerobic flora. Kinetics of EPS production in isolated culture and in arbitrary 1:1 mixture was investigated by high-pressure size exclusion chromatography (HPSEC). In isolated culture, Enterobacter produced regularly and gradually during 24 h of culture, while Klebsiella produced the total amount of EPS already after 4 h without any changes later. The chromatographic profiles of the EPS production of the 1:1 mixture after 4, 8 and 24 h of culture could be fitted as a linear combination of the profiles of exopolymers produced by pure Enterobacter and Klebsiella strains. After 24 h of culture, Enterobacter was predominant in term of population (82%) and produced about 77% EPS amount, in spite of competition phenomena observed during culture.
Journal: Water Research - Volume 40, Issue 16, September 2006, Pages 3115–3122