Biodegradation of textile
azo dyes by a facultative Staphylococcus arlettae strain VN-11 using a sequential microaerophilic/aerobic process.
Sunset yellow and red bordeaux S (amaranth) are classified as
azo dyes, since they are synthesized from various aromatic amines derived from tar (BAFANA et al., 2011; AL-RUBAIE & MHESSN, 2012).
With a better understanding, this synergistic activity of Streptomyces consortia would be further exploited for the degradation of wide range of reactive
azo dyes.
The analytical curve method for the
Azo dye Reactive Red resulted in the equation y = 1.8918x-0.0041 ([R.sup.2] = 0.9978), where x corresponds to dye concentration and y to absorbance.
Jin, "Effect of food
azo dye tartrazine on learning and memory functions in mice and rats, and the possible mechanisms involved," Journal of Food Science, vol.
The chemical structures of reactive
azo dyes, Everzol Red 239 and Reactive blue 19 is shown in Fig.
Govindwar, "Bacterial decolorization and degradation of
azo dyes: a review," Journal of the Taiwan Institute of Chemical Engineers, vol.
Sun, "Adsorption of
azo dyes from aqueous solution by the hybrid MOFs/GO," Water Science and Technology, vol.
Rouhani, "Application of
azo dye as sensitizer in dye-sensitized solar cells," Colorants and Coating, vol.
It has been observed that
azo dyes can reduce into aromatic amines in the digestive tract of mammals (Chung et al., 1992).
Polymerization study of the aromatic amines generated by the biodegradation of
azo dyes using the laccase enzyme.
Degradation of
azo dyes by environmental microorganisms and helminths, Environmental Toxicology and Chemistry 54: 435-41.
