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      Bioremediation of Direct Blue 14 and Extracellular Ligninolytic Enzyme Production by White Rot Fungi: Pleurotus Spp.

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          Abstract

          In the present investigation, four species of white rot fungi ( Pleurotus), that is, P. flabellatus, P. florida, P. ostreatus and P. sajor-caju were used for decolorization of direct blue 14 (DB14). Among all four species of Pleurotus, P. flabellatus showed the fastest decolorization in petri plates on different concentration, that is, 200 mg/L, 400 mg/L, and 600 mg/L. All these four species were also evaluated for extracellular ligninolytic enzymes (laccase and manganese peroxidase) production and it was observed that the twelve days old culture of P. flabellatus showed the maximum enzymatic activity, that is, 915.7 U/mL and 769.2 U/mL of laccase and manganese peroxidase, respectively. Other three Pleurotus species took more time for dye decolorization and exhibited less enzymatic activities. The rate of decolorization of DB14 dye solution (20 mg/L) by crude enzymes isolated from P. flabellatus was very fast, and it was observed that up to 90.39% dye solution was decolorized in 6 hrs of incubation.

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          Removal of synthetic dyes from wastewaters: a review.

          The more recent methods for the removal of synthetic dyes from waters and wastewater are complied. The various methods of removal such as adsorption on various sorbents, chemical decomposition by oxidation, photodegradation, and microbiological decoloration, employing activated sludge, pure cultures and microbe consortiums are described. The advantages and disadvantages of the various methods are discussed and their efficacies are compared.
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            Review: lignin conversion by manganese peroxidase (MnP)

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              Peroxidases

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                Author and article information

                Journal
                Biomed Res Int
                Biomed Res Int
                BMRI
                BioMed Research International
                Hindawi Publishing Corporation
                2314-6133
                2314-6141
                2013
                11 June 2013
                : 2013
                Affiliations
                Department of Biotechnology, VBS Purvanchal University, Jaunpur, UP 222001, India
                Author notes

                Academic Editor: Nikhat J. Siddiqi

                Article
                10.1155/2013/180156
                3693104
                23841054
                Copyright © 2013 M. P. Singh et al.

                This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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                Research Article

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