title: Bioremoval of textile dyes with different chemical structures by Aspergillus versicolor in molasses medium.
abstract: Bioremoval of 17 dyes with different chemical structures by Aspergillus versicolor was detected in this study. Maxilon Red GRL (MR-GRL), Everdirect Fast Black VSF (EFB-VSF) and Brillant Blue R (BB-R) were removed better by fungal mycelia. Optimum pH values were found as 6 for all three dyes. In further experiments in the highest dye concentrations tested in this study, 58.3, 100 and 49% removal yields and 14.8, 12.6, 9.0 q(m) values were found for MR-GRL, EFB-VSF and BB-R, respectively. Chemical oxygen demand (COD) reduction after seven days of incubation period and role of laccase activity of Aspergillus sp. were also investigated. COD reduction and laccase activities were 55.6% and 2.93 U/mL for MR-GRL, 90.7% and 3.0 U/mL for EFB-VSF and 69.0% and 1.79 U/mL for BB-R, respectively. According to these results A. versicolor deserves notable attention for removal of these dyes in wastewater effluents.
authors.affiliation: Department of Biology, University of Ankara, Ankara, Turkey.
authors.forename: Burcu Ertit
authors.initials: BE
authors.lastname: Taştan
authors.forename: Sevgi Ertuğrul
authors.initials: SE
authors.lastname: Karatay
authors.forename: Gönül
authors.initials: G
authors.lastname: Dönmez
mesh_terms: D001230:Aspergillus / Q000378:metabolism*; D001673:Biodegradation, Environmental; D018533:Biomass; D019149:Bioreactors; D004396:Coloring Agents / Q000737:chemistry* / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D042845:Laccase; D008965:Molasses; D015394:Molecular Structure; D013997:Time Factors
chemical_list: D004396:Coloring Agents; D042845:Laccase