Effect of protein , polysaccharide , and oxygen concentration 1 profiles on biofilm cohesiveness 2 3 Running title : EPS concentration profile affects biofilm cohesiveness
نویسندگان
چکیده
* Corresponding author. Mailing address: Department of Civil Engineering, 500 21 Pillsbury Dr. S.E., University of Minnesota, Minneapolis, MN 55455. Phone: (612) 624 22 8047. Fax: (612) 626 7750. E–mail: [email protected]. 23 AC CE PT ED Copyright © 2007, American Society for Microbiology and/or the Listed Authors/Institutions. All Rights Reserved. Appl. Environ. Microbiol. doi:10.1128/AEM.02420-06 AEM Accepts, published online ahead of print on 2 March 2007
منابع مشابه
Effect of protein, polysaccharide, and oxygen concentration profiles on biofilm cohesiveness.
It is important to control biofilm cohesiveness to optimize process performance. In this study, a membrane-aerated biofilm reactor inoculated with activated sludge was used to grow mixed-culture biofilms of different ages and thicknesses. The cohesions, or cohesive energy levels per unit volume of biofilm, based on a reproducible method using atomic force microscopy (F. Ahimou, M. J. Semmens, P...
متن کاملBiofilm-control strategies based on enzymic disruption of the extracellular polymeric substance matrix--a modelling study.
A kinetic model is proposed to assess the feasibility of strategies for the removal of biofilms by using substances that induce detachment by affecting the cohesiveness of the matrix of extracellular polymeric substances (EPSs). The model uses a two-state description of the EPS (natural EPS and compromised EPS) to provide a unified representation of diverse mechanisms of action of detachment-pr...
متن کاملAmyloids-DNA complexes mediate adherence and cohesiveness of bacterial biofilms
Complexity of bacterial biofilms is generally due to their composition in terms of microorganisms as well as in the diversity of their matrix components. The commonly described extracellular polymeric substances (EPS) are exopolysaccharides (ePS), exoproteins (ePN) and extracellular DNA (eDNA). Besides, several studies have shown that the ePN are the most abundant compound within a biofilm [1]....
متن کاملEffect of Dissolved Oxygen and Chemical Oxygen Demand to Nitrogen Ratios on the Partial Nitrification/Denitrification Process in Moving bed Biofilm Reactors
Partial nitrification was reported to be technically feasible and economically favorable, especially for wastewaterwith high ammonium concentration or low C/N ratio. In this study, the effect of dissolved oxygen (DO)and influent ratio of chemical oxygen demand to nitrogen (COD/N) ratio on biological nitrogen removal fromsynthetic wastewater was investigated. Experiments were c...
متن کاملبررسی اثـر نانـوذرات نقـره بر بیـوفیلمهای ناشی از استافیلوکوکوس اپیدرمیدیس
Background and Objective: Staphylococcus epidermidis produces extracellular polysaccharide which is known as a biofilm. Biofilm is highly effective in establishing of this bacterium infections and can be formed on medical devices that are used in the body. The purpose of this study was to evaluate the effects of silver colloidal nanoparticles on bacterial growth and biofilm form...
متن کامل