Biodegradation of reactive textile dyes by basidiomycetous fungi from brazilian ecosystems

Abstract

The potential of Trametes villosa and Pycnoporus sanguineus to decolorize reactive textile dyes used for cotton manufacturing in the State of Minas Gerais, Brazil, was evaluated. Growth and decolorization halos were determined on malt extract agar containing 0.002g L -1 of the dye. T. villosa decolorized all 28 of the tested dyes while P. sanguineus decolorized only 9. The effect of culture conditions (shaking and dye and nitrogen concentration) on the degradation of Drimaren Brilliant Blue dye was evaluated during growth of the fungi in liquid synthetic medium. Shaking favored degradation and decolorization was not repressed by nitrogen. In pure culture, T. villosa and P. sanguineus decolorized synthetic effluent consisting of a mixture of 10 dyes. Higher decolorization of the synthetic effluent was observed when a mixed culture of the two fungi was used. This study demonstrated differences between tropical basidiomycete species in terms of their ability to degrade reactive dyes, and reinforces the potential of this group of fungi for the decolorization of textile effluents.

Lignolytic enzymes produced by Trametes villosa ccb176 under different culture conditions

“…Trametes villosa is a strain with a proven biotechnological potential, which are able to mineralize pentachlorophenol and hexachlorobenzene in soil and to degrade reactive synthetic dyes (16)(17)(18)(19). However, little is known about the physiology of these fungi.…”

Purification and Characterization of Lignin Peroxidase Isozymes from Humicola grisea (Traaen) and Its Application in Bioremediation of Textile Dyes

“…The precipitate was dissolved in acetate buffer, pH 5.0, and kept at 4 °C for further investigations. Presence of LiPs and MnP were estimated according to Glenn et al (1983) and Machado (2009), respectively.…”

Industrial Wastewater Treatment: A Challenging Task in the Industrial Waste Management

“…Conversely, electroFenton process requires no addition of chemicals other than the catalytic amount of Fe +2 , that is produced from H 2 O 2 in situ, thereby avoiding the transportation of the dangerous oxidant. With high pulsed voltage electrical discharge process, more oxidants such as H 2 O 2 give rise to highly reactive free radical species by photo-dissociation of H 2 O 2 and thus improves the overall process [91,92].…”