Coordination Behaviors of Cu2+ With Azo Dye Acid Black 10B

Degradation of Azo Dye Reactive Black 5 and Acid Orange 7 by Fenton-Like Mechanism

Bile Acid Involvement in Azo Dye Carcinogenesis1

the early stages of liver carcinoma development in Sprague-Dawley rats. Bile acids were analyzed in urine and feces of azo dye-fed and control rats with the use of gas chromatography during the first 66 days of treatment. Seven bile acids were identified in the feces, with deoxycholic acid being the primary excretion product. During the first 36 days of 3'-methyl-4-dimethylaminoazobenzene feedi...

Aerobic biodegradation of azo dye Acid Black-24 by Bacillus halodurans.

Bacillus halodurans MTCC 865 was employed for decolorization of textile azo dye, Acid Black-24 (AB-24). Thousand mgl⁻¹ of AB-24 was decolorized with 90% efficiency by the strain within 6 hrs at pH 9 and 37 °C with 5% NaCl under static conditions in screening medium. Decolorization was evaluated by measuring the periodic decrease in absorbance at 557 nm (λ(max)). Biodegradation of Acid Black-24 ...

Biodegradation of azo dye compounds

Azo dyes are one of the oldest industrially synthesized organic compounds characterized by presence of Azo bond (-N=N-) and are widely utilized as coloring agents in textile, leather, cosmetic, paint, plastic, paper, and food industries During textile processing, inefficiencies in dyeing result in large amounts of the dyestuff (varying from 2% loss when using basic dyes to a 50% loss when certa...

Immobilized laccase mediated dye decolorization and transformation pathway of azo dye acid red 27

BACKGROUND Laccases have good potential as bioremediating agents and can be used continuously in the immobilized form like many other enzymes. METHODS In the present study, laccase from Cyathus bulleri was immobilized by entrapment in Poly Vinyl Alcohol (PVA) beads cross-linked with either nitrate or boric acid. Immobilized laccase was used for dye decolorization in both batch and continuous ...