Characterization of biofilm formation on a humic material.

Journal of Industrial Microbiology & Biotechnology
A L RodriguesRegina Nogueira

Abstract

Biofilms are major sites of carbon cycling in streams. Therefore, it is crucial to improve knowledge about biofilms' structure and microbial composition to understand their contribution in the self-purification of surface water. The present work intends to study biofilm formation in the presence of humic substances (HSs) as a carbon source. Two biofilm flowcells were operated in parallel; one with synthetic stream water, displaying a background carbon concentration of 1.26+/-0.84 mg L(-1), the other with added HSs and an overall carbon concentration of 9.68+/-1.00 mg L(-1). From the biofilms' results of culturable and total countable cells, it can be concluded that the presence of HSs did not significantly enhance the biofilm cell density. However, the biofilm formed in the presence of HSs presented slightly higher values of volatile suspended solids (VSS) and protein. One possible explanation for this result is that HSs adsorbed to the polymeric matrix of the biofilm and were included in the quantification of VSS and protein. The microbial composition of the biofilm with addition of HSs was characterized by the presence of bacteria belonging to beta-Proteobacteria, Cupriavidus metallidurans and several species of the genus Ral...Continue Reading

References

Jan 5, 2002·Applied and Environmental Microbiology·Veljo KisandJohan Wikner
Dec 9, 2003·Applied and Environmental Microbiology·C SchmeisserW R Streit
May 18, 2004·International Journal of Food Microbiology·Donald J Reasoner
Aug 9, 2005·Applied and Environmental Microbiology·Karin SimuAke Hagström

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Citations

Mar 16, 2013·Environmental Monitoring and Assessment·R MaurícioF Santana
Jul 17, 2009·Journal of Clinical Microbiology·Wiltrud Maria Kalka-MollPeter Vandamme
Jul 14, 2011·MBio·J Ian Van TrumpJohn D Coates
Aug 13, 2015·Environmental Technology·Andréa F S SantosAntónio G Brito
Apr 24, 2010·Bioresource Technology·A L RodriguesR Nogueira
Jul 14, 2011·Integrated Environmental Assessment and Management·Matthias SchulzGregory M Peters
Apr 17, 2021·Journal of Hazardous Materials·Thi Huyen DuongSung Kyu Maeng

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