title: Decolorization of the anthraquinone dye Cibacron Blue 3G-A with immobilized Coprinus cinereus in fluidized bed bioreactor.
abstract: Coprinus cinereus, which was able to decolorize the anthraquinone dye Cibacron Blue 3G-A (CB) enzymatically, was used as a biocatalyst for the decolorization of synthetic solutions containing this reactive dye. Coprinus cinereus was immobilized in both calcium alginate and polyacrylamide gels, and was used for the decolorization of CB from synthetic water by using a fluidized bed bioreactor. The highest specific decolorization rate was obtained when Coprinus cinereus was entrapped in calcium alginate beads, and was of about 3.84 mg g(-1) h(-1) with a 50% conversion time (t1/2) of about 2.60 h. Moreover, immobilized fungal biomass in calcium alginate continuously decolorized CB even after 7 repeated experiments without significant loss of activity, while polyacrylamide-immobilized fungal biomass retained only 67% of its original activity. The effects of some physicochemical parameters such as temperature, pH and dye concentration on decolorization performance of isolated fungal strain were also investigated.
authors: Unit of Radio-Lmmuno-Analyse, Division of Life Science Applications, National Center of Energy, Sciences and Nuclear Techniques (CNESTEN), 10001 Rabat, Marocco. moutaouakkil@cnesten.org.ma
authors: A
authors: A
authors: Moutaouakkil
authors: M
authors: M
authors: Blaghen
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry; D000464:Alginates / Q000737:chemistry; D055162:Biocatalysis; D001673:Biodegradation, Environmental; D019149:Bioreactors; D018914:Cells, Immobilized / Q000737:chemistry / Q000378:metabolism*; D004396:Coloring Agents / Q000378:metabolism*; D003302:Coprinus / Q000737:chemistry / Q000166:cytology / Q000378:metabolism*; D017743:Equipment Reuse; D005782:Gels / Q000737:chemistry; D020723:Glucuronic Acid / Q000737:chemistry; D006603:Hexuronic Acids / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D013696:Temperature; D014227:Triazines / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000378:metabolism; D018508:Water Purification / Q000295:instrumentation / Q000379:methods*; D000099166:Polyacrylamides
chemical_list: D000180:Acrylic Resins; D000464:Alginates; D004396:Coloring Agents; D005782:Gels; D020723:Glucuronic Acid; D006603:Hexuronic Acids; D014227:Triazines; D014874:Water Pollutants, Chemical; D000099166:Polyacrylamides; C012842:Cibacron Blue F 3GA