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Decolorization of industrial dyes by ligninolytic microorganisms isolated from composting environment

Paper ID Volume ID Publish Year Pages File Format Full-Text
18206 42714 2006 4 PDF Available
Title
Decolorization of industrial dyes by ligninolytic microorganisms isolated from composting environment
Abstract

The decolorization of Remazol Brilliant Blue R (RBBR), Poly R-478 and Poly S-119 by fungi and bacteria isolated from composting piles and the relationship of this ability to other ligninolytic activity tests was analyzed. Poly S-119 decolorizing capability was the most widespread among all tested microorganisms, followed by poly R-478, with RBBR being the most difficult to decolorize. Decolorizing ability was strongly correlated to ligninase production according to Sundman test. However, no relationship was found between this capability and laccase, tyrosinase, oxidase, polyphenoloxidase or peroxidase activities. Three mesophile fungi, one thermophile fungus, and one bacterium were able to significantly decolorize all the dyes. The mesophile fungi had the higher decolorization efficiency with more than 95% for Poly R-478 and Poly S-119 and more than 50% for RBBR. The thermophile fungus decolorized 12, 14 and 40% of Poly R-478, RBBR and Poly S-119, respectively, and the bacterium decolorized 24, 45 and 96% of Poly R-478, RBBR and Poly S-119, respectively. This is the first report of non-filamentous aerobic bacteria showing dye decolorization in axenic culture. These microorganisms can be potential candidates for use in biodecolorization processes.

Keywords
Bioremediation; Dye decolorization; Polymeric dyes; Ligninolytic
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Decolorization of industrial dyes by ligninolytic microorganisms isolated from composting environment
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Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 40, Issue 1, 6 December 2006, Pages 42–45
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us