Synthetic dyes belong to important class of organic compounds extensively used in textile,
paper printing, color photography, leather, plastics, food, cosmetic, and pharmaceutical
industries (Ali, Water Air Soil Poll 213: 251–273, 2010; Rauf and Ashraf, Chem Eng J 209:
520–530, 2012). According to Global Industry Analysts, the production of worldwide
synthetic dyes and pigments industries is predicted to reach almost 10 million tons by 2017
which will be worth close to $27 billion (http://www. reportlinker. com/ci02367/Synthetic-Dye …

Two aerobic bacterial isolates C1A and C2B from dye contaminated soils showed maximum
decolorization of crystal violet (20 ppm) and malachite green (100 ppm). In minimal media
68% decolorization of crystal violet and 89% decolorization of malachite green was
observed by C1A. Malachite green was the compound most remarkably decolorized than
crystal violet. Dye decolorization occurred by the dead cells indicating that decolorization is
largely due to adsorption to the extent of nearly 60%. Growth of bacteria in minimal media …