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The contribution of fermentative bacteria and methanogenic archaea to azo dye reduction by a thermophilic anaerobic consortium

Paper ID Volume ID Publish Year Pages File Format Full-Text
18748 42741 2006 9 PDF Available
Title
The contribution of fermentative bacteria and methanogenic archaea to azo dye reduction by a thermophilic anaerobic consortium
Abstract

The contribution of fermentative bacteria and methanogenic archaea to azo dye reduction by a thermophilic anaerobic consortium was studied. Additionally, the effects of different electron-donating substrates and the redox mediator riboflavin on dye reduction were assessed by using either a methanogenic consortium or pure cultures of methanogens. Our results indicate that fermentative bacteria and methanogenic archaea play an important role in this reductive process. The thermophilic methanogens Methanothermobacter thermoautotrophicus ΔH and a Methanothermobacter-related strain NJ1 were only able to reduce the dye in the presence of riboflavin. This suggests that anaerobic dye reduction is not a universal property among methanogenic archaea and that redox mediators may improve reductive decoulorisations by allowing some microbial groups commonly found in wastewater treatment systems to participate more effectively.

Keywords
Azo dye; Redox mediators; Methanogens; Granular sludge; Thermophilic
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The contribution of fermentative bacteria and methanogenic archaea to azo dye reduction by a thermophilic anaerobic consortium
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Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 39, Issue 1, 1 June 2006, Pages 38–46
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