title: Hydrolysis of wastewater colloidal organic matter by extracellular enzymes extracted from activated sludge flocs.
abstract: Enzymatic activities associated with the exopolymeric substances (EPSs) extracted from activated sludges were tested for their ability to hydrolyse the organic colloidal fraction of wastewater. Bacteria extracted with EPS and concentrated by wastewater microfiltration were inhibited with NaN3 or KCN. The protein hydrolysis mainly resulted from the enzymatic activity of EPS, whereas the glycolytic activity was mainly present in the organic colloidal fraction of the wastewater.
authors.affiliation: LSE/LCPE, UMR 7564 Université Henri Poincaré-CNRS, 15 avenue du Charmois, F-54500 Vandoeuvrelès-Nancy, France.
authors.forename: A
authors.initials: A
authors.lastname: Guellil
authors.forename: M
authors.initials: M
authors.lastname: Boualam
authors.forename: H
authors.initials: H
authors.lastname: Quiquampoix
authors.forename: P
authors.initials: P
authors.lastname: Ginestet
authors.forename: J M
authors.initials: JM
authors.lastname: Audic
authors.forename: J C
authors.initials: JC
authors.lastname: Block
mesh_terms: D001704:Biopolymers / Q000737:chemistry; D003102:Colloids; D005109:Extracellular Matrix / Q000201:enzymology; D005427:Flocculation; D006868:Hydrolysis; D009930:Organic Chemicals / Q000737:chemistry; D011190:Potassium Cyanide; D011506:Proteins / Q000737:chemistry; D012722:Sewage / Q000737:chemistry* / Q000382:microbiology; D019810:Sodium Azide; D014865:Waste Disposal, Fluid; D014871:Water Microbiology
chemical_list: D001704:Biopolymers; D003102:Colloids; D009930:Organic Chemicals; D011506:Proteins; D012722:Sewage; D019810:Sodium Azide; D011190:Potassium Cyanide