Colour removal of an azo-textile dye and production of laccase by submerged cultures of Trichoderma asperellum LBKURCC1

Textile industry effluents containing synthetic dye waste, such as azo dyes, are harmful to health, and thus can present environmental hazard. Biological treatment of textile waste effluents can remove synthetic dyes. Here we present our results of colour removal from an azo dye solution, by mycelia...

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Bibliographic Details
Published in:Journal of physics. Conference series 2018-12, Vol.1116 (4), p.42027
Main Authors: Nugroho, T T, Akbar, I, Astina, D, Helianty, S, Saputra, E
Format: Article
Language:English
Subjects:
Azo dyes
Color removal
Dyes
Effluents
Fermentation
Fungi
Industrial effluents
Laccase
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Summary:Textile industry effluents containing synthetic dye waste, such as azo dyes, are harmful to health, and thus can present environmental hazard. Biological treatment of textile waste effluents can remove synthetic dyes. Here we present our results of colour removal from an azo dye solution, by mycelia of two Riau, Indonesia Trichoderma biocontrol isolates. Colour removal by Trichoderma asperellum LBKURCC1 was more rapid with higher maximums at pH 6.5, compared to removal at pH 2.5 and 4.5. Colour removal by T. asperellum LBKURCC1 was stable until the end of the experiments (120 hours). As comparison, colour removal by Trichoderma asperelloides LBKURCC2 was higher at the lower pH values, but was unstable after 60 hours, showing difference in dye removal mechanism between the two fungal species. Laccase are enzymes that degrade synthetic dyes, including azo dyes. In this paper, we show that submerged cultures of T. asperellum LBKURCC1 can produce laccase in media solution containing rice husk. LBKURCC1 also produced laccase in solid state fermentation (SSF) systems containing rice straw. Production of laccase can contribute to increased and more stable removal of azo dyes by live submerged T. asperellum LBKURCC1 mycelia, with appropriate supplement addition in waste effluents.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1116/4/042027