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.