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Discoloration of dyes by Hexagonia apiara fungus isolated in Gabon and screening of enzymes on solid culture medium

Abstract : The white-rot fungus Hexagonia apiaria isolated in wood parks in Gabon showed a high capacity to degrade synthetic dyes used in the textile industry. The results of this study show that this fungus has an optimum growth temperature between 30°C and 40°C. Optimum physicochemical parameters of discoloration on solid culture media are 35°C and 0.3g/L. On solid culture medium, the fungus produces different enzymes (cellulase, laccase, phenoloxidase, and peroxidases) in the presence of different substrates. At the concentration of 0.3g/L after 6 day 0.76 and 0.78 (cm/day) respectively for Orange G, Reactive blue 4 and Congo red. The study reveals the opportunity of using this yet poorly known fungus for discoloration of synthetic dyes.
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Steeve Mounguengui, Christiane Attéké, Jean-Bosco Saha Tchinda, Maurice Kor Ndikontar, Stéphane Dumarcay, et al.. Discoloration of dyes by Hexagonia apiara fungus isolated in Gabon and screening of enzymes on solid culture medium. International Journal of Current Research, T. Manikandan, 2013, 5 (12), pp.3886-3891. ⟨hal-01591876⟩

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