title: Effectiveness of Dyes Removal by Mixed Fungal Cultures and Toxicity of Their Metabolites.
abstract: Decolorization of brilliant green (0.06 g/L), Evans blue (0.15 g/L), and their mixture (total concentration 0.08 g/L, proportion 1:1w/w) by fungi was studied. Fungal strains [Pleurotus ostreatus(BWPH),Gloeophyllum odoratum(DCa), andFusarium oxysporum(G1)] were used separately and as a mixture of them. Zootoxicity (Daphnia magna) and phytotoxicity (Lemna minor) changes were estimated after the end of experiment. Mixtures of fungal strains were less effective in decolorization process than the same strains used separately (as a single strains). After 96 h of experiment, living biomass of strain BWPH removed up to 95.5 %; DCa, up to 84.6 %; G1, up to 79.2 % where mixtures BWPH + DCa removed up to 74.3 %; and BWPH + G1, only up to 32.2 % of used dyes. High effectiveness of dyes removal not always corresponded with decrease of toxicity. The highest decrease of zootoxicity and phytotoxicity (from V to III toxicity class or to even nontoxic) was noticed for single strains, while no changes or slight toxicity decrease was noticed in samples with strains mixtures.
authors.affiliation: Environmental Biotechnology Department, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland.
authors.forename: Wioletta
authors.initials: W
authors.lastname: Przystaś
authors.forename: Ewa
authors.initials: E
authors.lastname: Zabłocka-Godlewska
authors.forename: Elżbieta
authors.initials: E
authors.lastname: Grabińska-Sota
keywords: Dyes decolorization; Mixed fungal culture; Phytotoxicity; Zootoxicity