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ABSTRACT
Synthetic dyes are extensively used in textile dyeing, paper printing, color photography, and the pharmaceutical, food, cosmetic, and leather industries. Most synthetic dyes are toxic and highly resistant to removal due to their complex chemical structures. There is a need for investigation of the biological treatment of synthetic dyes at a low cost and in the shortest possible time; synthetic dyes are used especially in the dye and textile industries and are an important polluting agent in the wastewater dumped into the environment by these industries. White rot fungus contains a variety of extracellular enzymes, and these enzymes are used for biological degradation of organic matter. The aim of the present work is to evaluate removal of the textile dye Turquoise Blue HFG by Coprinus plicatilis. Coprinus plicatilis was able to enzymatically decolorize 100% of the dye (dye concentration 10.0 and 25.0 mg L−1). Ultraviolet–visible (UV-vis) spectrophotometric analyses, before and after decolorization, suggest that decolorization was due to biodegradation. There was an attempt to identify metabolites with Fourier transform infrared (FT-IR) spectroscopy and gas chromatography–mass spectrometry (GC-MS) at the end of the decolorization process. These results indicate that the samples did not include any detectable metabolite. Therefore, this fungus can be used as an economical and eco-friendly tool to minimize the pollution by industries to a significant extent.