Decolorization of synthetic dyes by Irpex lacteus in liquid cultures and packed-bed bioreactor

Wood production, wood technology, and biotechnological impacts

“…Examples are laccase and peroxidases in P. radiata (Daniel et al 2004), laccase in Rigidoporus lignosus and other white-rot fungi (Nicole et al 1992, Daniel 1994, peroxidases in P. chrysosporium (Daniel et al 1989, Ruel & Joseleau 1991, aryl alcohol oxidases in Pleurotus eryngii (Barrasa et al 1998), pyranose oxidase in P. chrysosporium and Oudemansiella mucida , and cellulolytic enzymes in Volvariella volvaceae (Cai et al 1999). Furthermore, enzymatic tests revealed laccase-like activities in cell walls of T. versicolor, I. lacteus, and C. cinerea (Svobodová et al 2003, 2008, Dviwedi 2006, M. Navarro-González, personal communication; Fig. 9).…”

“…First experiments with recombinantly produced enzymes in fibreboard production have been performed and also with enzymes obtained from wastes from mushroom production (Rühl et al 2005a,b, 2006, Fischer 2006. Other current applications of laccases target at dye decolourisation (Svobodová et al 2003, 2008, Svobodová 2005. Moreover, amongst various other applications ; see Chapters 17 and 19 of this book), laccases are very suitable to develop devices for detection of toxic phenolic compounds in various kinds of material and environment (see Chapter 12 of this book).…”

“…Similarly good results were obtained with 1-hydroxybenzotriazole . Beside this application in bleaching, laccases can also be used to decolourise chromophores from kraft mill bleachery effluents (Archibald et al 1990, Munari et al 2007, Pedroza et al 2007, in bleaching as well as in colouration of textile fibres (Basto et al 2007, Kim et al 2007, Ren & Buschle-Dillier 2007, and in decolourisation of recalcitrant textile dyes in waste waters (Svobodová et al 2003, 2008, Sharma 2005, Śušla & Svobodová 2006. Noteworthy is the application of laccases in refining jeans: surplus of the blue indigo dye is degraded by the enzymes.…”

“…Contaminations in solid materials can be addressed by solid state fermentation (SSF) with white-rot fungi (see Chapter 19 of this book). Living fungi producing laccases might also be of use for bioremediation of contaminated liquids in suitable bioreactors (Kasinath et al 2003, Diano et al 2007; see also Chapter 19 of this book). Furthermore, experiments are performed to immobilise the enzyme onto suitable matrices for clearance of contaminated waste waters ).…”

“…It is of further advantage that enzymes are stabilised in the immobilised, i.e. cell wall-associated state (Svobodová et al 2003, 2008, Dviwedi 2006. Research has shown that cell-wall bound enzymes could serve in waste water treatment for degradation of recaltrant textile dyes, polycylic aromatic compounds, and other recalcitrant compounds (Swamy & Ramsey 1999, Slobodová et al 2003, 2008.…”