Degradation of azo dyes by the lignin-degrading fungus Phaerochaete chrysosporium

Journal Article · Sat Aug 01 00:00:00 EDT 1992 · Applied and Environmental Microbiology; (United States)

OSTI ID:7120143

Spadaro, J T; Gold, M H; Renganathan, V ^[1]

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1. Oregon Graduate Inst. of Science and Technology, Beaverton (United States)

Under nitrogen-limiting, secondary metabolic conditions, the white rat basidiomycete Phanerochaete chrysosporium extensively mineralized the specifically [sup 14]C-ring-labeled azo dyes 4-phenylazophenol, 4-phenylazo-2-methoxyphenol, Disperse Yellow 3 [2-(4[prime]-acetamidophenylaso)-4-methylphenol], 4-phenylazoaniline, N,N-dimethyl-4-phenylazoaniline, Disperse Orange 3 [4-(4[prime]-nitrophenylazo)-aniline], and Solvent Yellow 14 (1-phenylazo-2-naphthol). Twelve days after addition to cultures, the dyes had been mineralized 23.1 to 48.1%. Aromatic rings with substituents such as hydroxyl, amino, acetamido, or nitro functions were mineralized to a greater extent than unsubstituted rings. Most of the dyes were degraded extensively only under nitrogen-limiting, ligninolytic conditions. However, 4-phenylazo-[U-[sup 14]C] phenol and 4-phenylazo-[U-[sup 14]C] 2-methoxyphenol were mineralized to a lesser extent under nitrogen-sufficient, nonligninolytic conditions as well. These results suggest that P. chrysosporium has potential applications for the cleanup of textile mill effluents and for the bioremediation of dye-contaminated soil.

• DOE Contract Number: FG06-87ER13715
• OSTI ID: 7120143
• Journal Information: Applied and Environmental Microbiology; (United States), Vol. 58:8; ISSN 0099-2240
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
54 ENVIRONMENTAL SCIENCES
AZO DYES
BIODEGRADATION
FUNGI
GROWTH
SOILS
DECONTAMINATION
CARBON 14 COMPOUNDS
CHEMICAL EFFLUENTS
MINERALIZATION
REMEDIAL ACTION
TEXTILE INDUSTRY
TRACER TECHNIQUES
AZO COMPOUNDS
CARBON COMPOUNDS
CHEMICAL REACTIONS
CHEMICAL WASTES
CLEANING
DECOMPOSITION
DYES
INDUSTRY
ISOTOPE APPLICATIONS
LABELLED COMPOUNDS
NONRADIOACTIVE WASTES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PLANTS
WASTES
560300* - Chemicals Metabolism & Toxicology
540220 - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)