Title

Decolorization of textile dyes by Bjerkandera sp. BOL 13 using waste biomass as carbon source

Document Type

Journal Article

Publisher

John Wiley & Sons Ltd.

Faculty

Faculty of Health, Engineering and Science

School

School of Natural Sciences

RAS ID

17521

Comments

This article was originally published as: Jonstrup, M., Kumar, N. , Guieysse, B., Murto, M., & Mattiason, B. (2013). Decolorization of textile dyes by Bjerkandera sp. BOL 13 using waste biomass as carbon source. Journal of Chemical Technology and Biotechnology, 88(3), 388-394. Original article availablehere

Abstract

BACKGROUND: Phanerochaete chrysosporium, Trametes versicolor and Bjerkandera sp BOL13 were compared for decolorization of azo dyes supplied individually or as a mixture. The dye decolorization was also evaluated during continuous treatment under non-sterile conditions using a lignocellulosic growth substrate. RESULTS: Bjerkandera sp BOL13 showed the highest dye decolorization potential. This fungus was also found to support high decolorization of Remazol Red RR at an initial pH of 4-6 and when using straw as co-substrate. The fungus was evaluated for Remazol Red RR decolorization in a continuously fed packed-bed bioreactor operated under non-sterile conditions with 3 days of hydraulic retention time. When glucose was supplied as growth-substrate, decolorization efficiencies of 65-90% were maintained for 12 days in a bioreactor packed with wooden material. The decolorization efficiency was lower when glucose was not fed to the fungus or when a plastic material was used as packing. Higher manganese peroxidase and laccase activities were also recorded when the wood packing was used. Contamination caused a drop in decolorization efficiency after 17-19 days operation. CONCLUSIONS: The potential of Bjerkandera sp BOL13 for decolorization of azo dyes under non-sterile conditions using lignocellulosic growth substrates was demonstrated. Research is needed to reduce contamination under non-sterile conditions.

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