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 1:1 w/w) by fungi was studied. Fungal strains [Pleurotus ostreatus (BWPH), Gloeophyllum odoratum (DCa), and Fusarium 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.

Decolorization of synthetic brilliant green carpet industry dye through fungal co-culture technology

“…Moreover, in a similar study; combined inoculums of Pleurotus ostreatus and Coriolus versicolor represented higher decolorization than single strains (Asgher et al, 2012). Better decolorization in co-cultures was achieved which might be due to effect of combined action of lignocellulolytic enzymes (Przystas et al, 2013). It is also remarkably known that the degradation products of one culture in the consortium may act as inducer for another co-culture, which results in the further mineralization of dye and metabolites (Lade et al, 2012).…”

“…It is also remarkably known that the degradation products of one culture in the consortium may act as inducer for another co-culture, which results in the further mineralization of dye and metabolites (Lade et al, 2012). However, contrary to these findings; Przystas et al (2013) and Ramalingam et al (2010) mentioned that sometimes single strains are better choice for dye decolorization than mixed culture.…”

Investigation of Some Parameters Affecting Methyl OrangeRemoval by Fusarium acuminatum

“…Korniłłowicz-Kowalska and Rybczynska [26] screened 20 strains of F. oxysporium and found that only 4 strains have the decolorizing ability of alizarine blue black B with the rate of 40-70%. Przystaś et al [27] studied removal of the mixture of two dyes, tryphenilmethane brilliant green and azo evans blue with a concentration of 80 mg/L by F. oxysporium. Abedin [28] reported the biosorption of crystal violet and malachite green by F. solani with 3-10 mg/L dye concentrations.…”

A green approach for the treatment of dye and surfactant contaminated industrial wastewater

“…In addition to this, fungi can be tolerated in negative conditions compared with other organisms and fungi are useful in biological wastewater treatment technologies. There are some studies about the removal of dyes from wastewater by fungi (Przystaś et al, 2013). There are a few researchers studied the removal of dyes by the usage of surfactants from industrial effluents (Ouni et al, 2015).…”

“…There are some studies about the removal of dyes from wastewater by fungi (Przystaś et al, 2013). There are a few researchers studied the removal of dyes by the usage of surfactants from industrial effluents (Ouni et al, 2015). Previously, Gül and Dönmez (2014) showed that cationic surfactant DTAB enhanced removal of Remazol Blue dye which is the form of commercial product, not a pure form.…”