Decolorization of textile dyes by Bjerkandera sp. BOL 13 using waste biomass as carbon source. Issue 3 (20th June 2012)

• Record Type: Journal Article
• Authors: Jonstrup, Maria; Kumar, Naresh; Guieysse, Benoit; Murto, Marika; Mattiasson, Bo
• Is Part Of: Journal of chemical technology & biotechnology. Volume 88:Issue 3(2013:Mar.)
• Page Start: 388
• Page End: 394
• Publication Date: 2012-06-20
• Subjects: Biotechnology -- Periodicals; Chemistry, Technical -- Periodicals; Chemical engineering -- Periodicals; Industries -- Environmental aspects -- Periodicals; 660
• DOI: 10.1002/jctb.3852
• Languages: English
• ISSNs: 0268-2575

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p> <bold>BACKGROUND: <italic>Phanerochaete chrysosporium, Trametes versicolor</italic> and <italic>Bjerkandera</italic> 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.</bold> </p> <p> <bold>RESULTS: <italic>Bjerkandera</italic> 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.</bold> </p> <p> <bold>CONCLUSIONS: The potential of <italic>Bjerkandera</italic> 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. © 2012 Society of Chemical Industry</bold> </p> </abstract>