inmovilización de hongos ligninolíticos para la remoción del colorante negro reactivo 5

Clicks: 210
ID: 160421
2009
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Abstract
La presencia de colorantes azoicos en aguas residuales de la industria textil es un problema ambiental y sanitario, porque muchos de estos compuestos son cancerígenos. Los tratamientos biológicos son una alternativa para la remoción de ese tipo de colorantes. En el presente trabajo se evaluó el efecto de tres hongos de podredumbre blanca, Trametes versicolor, Pleurotus ostreatus y Phanerochaete chrysosporium sobre la decoloración de un agua que contiene colorante negro reactivo 5 (NR5), ampliamente usado en la industria textil. Se estudió la inmovilización de estos hongos en dos soportes, espuma de poliuretano y estropajo (L. cylíndrica) para seleccionar el mejor soporte y el hongo con mayor capacidad para la decoloración. Ambos soportes fueron igualmente efectivos, pero se seleccionó estropajo por ser un producto natural. El hongo que generó los mayores porcentajes de decoloración en 4 días fue Trametes versicolor, con 96%, 98% y 98% para agua con concentración de NR5 300 ppm, 150 ppm y 75 ppm, respectivamente. La actividad lacasa para cada concentración de NR5 fue 8 U L-1, 7 U L-1 y 5 U L-1. Waste water from the textile industry represents a major environmental and health problem because it contains azo dyes whose carcirogenic effect has been tested in research. Biological treatment represents a valuable alternative for removing these dyes. The effect of Trametes versicolor, Pleurotus ostreatus and Phanerochaete chrysosporium rot fungi on decoloration of water containing reactive black five (NR5) textile dye was evaluated in this work. Immobilising the fungi on polyurethane foam and luffa sponge (Luffa cylindrica) supports was studied in order to select the best support and the fungi having the best decolorisation. Both supports were equally effective; however, the luffa sponge was selected as being a natural product. Trametes versicolor produced the highest decolorisation percentages in four days (96%, 98% and 98% for 300 ppm, 150 ppm and 75 ppm NR5 concentrations, respectively) while lacase enzyme activity was 8 UL-1, 7 UL-1 and 5 UL-1 for each of them.
Reference Key
fernndez2009revistainmovilizacin Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Jorge Andrés Fernández;Lina María Henao;Aura Marina Pedroza-Rodríguez;Balkys Quevedo-Hidalgo
Journal gigascience
Year 2009
DOI
DOI not found
URL
https://revistas.unal.edu.co/index.php/biotecnologia/article/view/10322
Keywords
pleurotus ostreatus polyurethane foam

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