Decolorization of synthetic dyes by solid state cultures of Lentinula (Lentinus) edodes producing manganese peroxidase as the main ligninolytic enzyme

Bôer, Cinthia Gandolfi; Obici, Larissa; Souza, Cristina Giatti Marques de; Peralta, Rosane Marina

doi:10.1016/j.biortech.2003.12.015

Cited by 167 publications

(54 citation statements)

References 35 publications

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“…Decolorization of some dyes took longer for some cultures as compared to others, and in some cases it was incomplete even at the end 10 days study period suggesting the longer lag phase and delayed onset of log/exponential growth phase of components of the microbial consortia. However, decolorization times taken by our cultures to achieve 100% decolorization compares favorably with reports on dye decolorization by most of the white rot fungi which require 7-20 days period for 90% decolorization of a diverse range of synthetic dyes (Kirby et al 2000;Boer et al 2004;Asgher et al 2006a) and other mixed microbial cultures (Senan and Abraham 2004;Adedayo et al 2004). Difference in microbial population in four different cultures may account for differences in their decolorization abilities.…”

Section: Discussionsupporting

confidence: 74%

Decolorization potential of mixed microbial consortia for reactive and disperse textile dyestuffs

et al. 2006

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Four different aerobic mixed consortia collected from basins of wastewater streams coming out of dying plants of Crescent Textile (CT), Sitara Textile (ST), Chenab Fabrics (CF) and Noor Fatima Textile (NF), Faisalabad, Pakistan were applied for decolorization of Drimarene Orange K-GL, Drimarene Brilliant Red K-4BL, Foron Yellow SE4G and Foron Blue RDGLN for 10 days using the shake flask technique. CT culture showed the best decolorization potential on all dyestuffs followed by ST, NF and CF, respectively. CT could completely decolorize all dyes within 3-5 days. ST cultures showed effective decolorization potential on Foron Yellow SE4G and Drimarene Brilliant Red K-4BL but complete color removal was achieved after 4 and 7 days, respectively. NF culture showed 100% decolorization efficiencies on Foron Yellow SE4G and Foron Blue RDGLN but it took comparatively longer time periods (5-7 days). Where as, the NF culture had decolorized only 40% and 50% of Drimarene orange and red, respectively, after 10 days. CF caused complete decolorization of Foron Blue RDGLN and Drimarene Brilliant Red K-4BL after 4 and 8 days, respectively but it showed poor performance on other two dyes.

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Section: Discussionsupporting

confidence: 74%

Decolorization potential of mixed microbial consortia for reactive and disperse textile dyestuffs

et al. 2006

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“…S133 was also laccase. However, it has also been stated that the enzyme system responsible for dye degradation and the pattern of its expression may vary in response to dyes of different chemical structures present in the effluents 26,27 . Figure 4 shows the effect of different carbon sources on RBBR decolorization.…”

Section: Resultsmentioning

confidence: 99%

Effect of Environmental Factors in the Decolorization of Remazol Brilliant Blue R by Polyporus Sp. S133

Hadibarata

Kristanti

2012

J. Chil. Chem. Soc.

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The effects of environmental conditions such as pH, agitation, carbon and nitrogen sources, metal ion, salinity and phenolic compound on the decolorization of the anthraquinone type textile dyestuff Remazol Brilliant Blue R by white rot fungi, Polyporus sp. S133 were investigated. After extensive testing, the best performance took place at pH 4 and decolorization of the dye in liquid effluents was significantly increased by agitation. Compared to other carbon and nitrogen sources tested, glucose and ammonium tartrate gave rise to better decolorization performances. Decolorization of RBBR occurred in the presence of metal ions which are typically found in textile industry effluents. Of all the metal ions tested, Fe ++ was the most inhibiting of the decolorization. The effect of culture salinity on decolorization was also investigated. Under high-salt conditions, RBBR was also decolorized completely in 6 d. The presence of phenolic compounds inhibited the decolorization at a concentration of 1 mM, but protocatechuic acid showed no inhibition. The results indicate that possibly anthraquinone type dyes such as RBBR act as enzyme substrates that are directly oxidized by laccase.

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“…Such fungi produce various isoforms of extracellular lignin-degrading enzymes, including laccase (Lcc), lignin peroxidases (LiP), and manganese peroxidases (MnP) (Gold and Alic 1993). These lignin-degrading enzymes possess oxidative activity against phenolic compounds (Cohen et al 2002;Hofrichter 2002), which can be used for bioremediation (Boer et al 2004;Christian et al 2005), biobleaching (Sasaki et al 2001), and biofuel production (Larsson et al 2001).…”

mentioning

confidence: 99%

Cloning of Lentinula edodes lemnp2, a manganese peroxidase that is secreted abundantly in sawdust medium

et al. 2009

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Manganese peroxidase (MnP), which is one of the lignin-degrading enzymes from white-rot fungi, possesses oxidative activity against phenolic compounds, making it a useful enzyme for bioremediation. A novel MnP-encoding gene (lemnp2) was isolated from Lentinula edodes. The deduced amino acid sequence showed approximately 48.8% homology to LeMnP1. The cDNA clone was approximately 1.4 kbp whereas the genomic sequence was 1.9 kbp, and comparison of the two indicated that lemnp2 contains 13 introns. The upstream region of lemnp2 contains putative CAAT, TATA, and metal response elements. Additionally, LeMnP2 contains conserved motifs that are observed in fungal MnPs, including 10 cysteines, a Mn-binding site, and Ca 2+ -binding sites. The lemnp2 transcript was identifi ed in mycelium cultivated on sawdust medium, and the protein was secreted into the medium. MnP activity was purifi ed from the sawdust medium as one peak during purifi cation. Western blot analysis confi rmed that LeMnP2, but not LeMnP1, was secreted into the sawdust medium. These results collectively demonstrate that LeMnP2 is the major MnP secreted into sawdust medium.

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Decolorization of synthetic dyes by solid state cultures of Lentinula (Lentinus) edodes producing manganese peroxidase as the main ligninolytic enzyme

Cited by 167 publications

References 35 publications

Decolorization potential of mixed microbial consortia for reactive and disperse textile dyestuffs

Decolorization potential of mixed microbial consortia for reactive and disperse textile dyestuffs

Effect of Environmental Factors in the Decolorization of Remazol Brilliant Blue R by Polyporus Sp. S133

Cloning of Lentinula edodes lemnp2, a manganese peroxidase that is secreted abundantly in sawdust medium

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