Decolouration of azo dyes by <Emphasis Type="Italic">Phanerochaete chrysosporium</Emphasis> immobilised into alginate beads |
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Authors: | Kheirghadam Enayatzamir Hossein A Alikhani Bagher Yakhchali Fatemeh Tabandeh Susana Rodríguez-Couto |
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Institution: | 1.Department of Chemical Engineering,Rovira i Virgili University,Tarragona,Spain;2.Department of Soil Science Engineering, Faculty of Soil and Water Engineering, University College of Agriculture and Natural Resources,Tehran University,Karaj,Iran;3.Department of Bioprocess Engineering,National Institute for Genetic Engineering and Biotechnology,Tehran,Iran;4.CEIT, Section of Environmental Engineering,San Sebastian,Spain;5.Ikerbasque, Basque Foundation for Science,Bilbao,Spain |
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Abstract: | Background, aim and scope Because of high discharged volumes and effluent composition, wastewater from the textile industry can be considered as the
most polluting amongst all industrial sectors, thus greatly requiring appropriate treatment technologies. Although some abiotic
methods for the reduction of several dyes exist, these require highly expensive catalysts and reagents. Biotechnological approaches
were proven to be potentially effective in the treatment of this pollution source in an eco-efficient manner. The white-rot
fungi are, so far, the most efficient microorganisms in degrading synthetic dyes. This white-rot fungi’s property is due to
the production of extracellular lignin-modifying enzymes, which are able to degrade a wide range of xenobiotic compounds because
of their low substrate specificity. In this paper, we studied the ability of the white-rot fungus Phanerochaete chrysosporium immobilised into Ca-alginate beads to decolourise different recalcitrant azo dyes such as Direct Violet 51 (DV), Reactive
Black 5 (RB), Ponceau Xylidine (PX) and Bismark Brown R (BB) in successive batch cultures. To the best of our knowledge, this
is the first study on the immobilisation of P. chrysosporium into Ca-alginate beads for its application in dye decolouration. |
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