Document Detail

Effect of natural mediators on the stability of Trametes trogii laccase during the decolourization of textile wastewaters.
MedLine Citation:
PMID:  22538650     Owner:  NLM     Status:  MEDLINE    
The purpose of the present study was to determine the effect of natural mediators on the stability of the Trametes trogii crude laccase in the process of decolourization of textile effluents. Acetosyringone allowed the highest wastewaters decolourization rate of 25%. At higher concentrations of acetosyringone, the relative activity of laccase decreased approximately by between 38% and 88% after 5 days of incubation. T. trogii laccase was strongly inactivated at 3 mM syringaldehyde, after 3 days of incubation. However, laccase activity is more stable in the presence of the vanillin and m-coumarate. The T. trogii growth on solid effluent-based-medium was examined and evaluated by measuring the colony diameter in cm. T. trogii was completely inhibited on 100:0 and 80:20 effluent:water solid medium, however, colony diameter reached 5 cm on 60:40 effluent:water solid medium after 13-14 days incubation. When the textile effluent was pre-treated with laccase and laccase-acetosyringone system, the colony diameter of 2 cm of T. trogii on 80:20 effluent:water solid medium was reached after 14 and 10 days of incubation respectively.
Rim Khlifi; Rim Khlifi-Slama; Tahar Mechichi; Sami Sayadi; Abdelhafidh Dhouib
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-04-27
Journal Detail:
Title:  Journal of microbiology (Seoul, Korea)     Volume:  50     ISSN:  1976-3794     ISO Abbreviation:  J. Microbiol.     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-04-27     Completed Date:  2012-08-13     Revised Date:  2012-10-23    
Medline Journal Info:
Nlm Unique ID:  9703165     Medline TA:  J Microbiol     Country:  Korea (South)    
Other Details:
Languages:  eng     Pagination:  226-34     Citation Subset:  IM    
Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, Sidi Mansour Road Km 6, PB 1177, 3018, Sfax, Tunisia.
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MeSH Terms
Biodegradation, Environmental
Coloring Agents / chemistry,  metabolism*
Enzyme Stability
Fungal Proteins / chemistry*,  metabolism
Industrial Waste / analysis
Laccase / chemistry*,  metabolism
Sewage / analysis*
Textile Industry
Trametes / chemistry,  enzymology*
Reg. No./Substance:
0/Coloring Agents; 0/Fungal Proteins; 0/Industrial Waste; 0/Sewage; EC
Erratum In:
J Microbiol. 2012 Aug;50(4):717
Note: Khlifi-Slama, Rim [corrected to Khlifi, Rim]

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