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Decolorization of molasses spent wash by the white-rot fungus Flavodon flavus, isolated from a marine habitat

DRS at CSIR-National Institute of Oceanography

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Title Decolorization of molasses spent wash by the white-rot fungus Flavodon flavus, isolated from a marine habitat
 
Creator Raghukumar, C.
Rivonkar, G.
 
Subject microorganisms
sea grass
pigments
degradation
enzymes
wastes
habitat
Flavodon flavus
 
Description Flavodon flavus (Klotzsch) Ryvarden, a basidiomycete (NIOCC strain 312) isolated from decomposing leaves of a sea grass, decolorized pigments in molasses spent wash (MSW) by 80% after 8 days of incubation, when used at concentrations of 10% and 50%. Decolorizing activity was also present in media prepared with half-strength seawater (equivalent to 15 ppt salinity). Decolorizing activity was seen in low-nitrogen medium, nutrient-rich medium and in sugarcane bagasse medium. The percentage decolorization of MSW was highest when glucose or sucrose was used as the carbon source in the low-nitrogen medium. The production of lignin-modifying enzymes, manganese-dependent peroxidase (MNP) and laccase decreased in a medium containing MSW. MNP production and MSW decolorization were inversely correlated, suggesting no role for MNP in MSW decolorization. The decolorization of MSW was not effective when F. flavus was immobilized in calcium alginate beads. Decolorization was achieved best in oxygenated cultures. Besides color, total phenolics and chemical oxygen demand were reduced by 50% in MSW treated with F. flavus, suggesting its potential in the bioremediation of effluents
 
Date 2009-01-07T10:50:28Z
2009-01-07T10:50:28Z
2001
 
Type Journal Article
 
Identifier Applied Microbiology and Biotechnology, Vol.55; 510-514p.
http://drs.nio.org/drs/handle/2264/1577
 
Language en
 
Rights Copyright [2001]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher Springer