The decolorization of textile dye from wastewater is a major environmental crisis which threatens the aquatic life .The decolorization of such harmful products is the major field of interest in research. In this investigation, the most common fungi, Aspergillus niger is used for the decolorization of the dye optilan red. Two types of PDA media are prepared. The fungus is inoculated in two forms of media the modified PDA and optimized PDA containing the dye. In modified PDA the dye decolorization of dye is visualized after 10-11 days. Optimization to analyze the dye decolorization enhancement when sucrose and peptone are added as additives(C source and N source) to the modified PDA .The decolorization is achieved by 5 days in the study of optimized PDA media. Thus showing that the fungi Aspergillus niger is potentially capable of decolorizing the dye and consequently its decolorization rate is enhanced by optimizing the media. The main objective of optimizing the media is that the absorbing dye capability of the fungus is enhanced, (due to the presence of sucrose and peptone –growth is increased) leading to prior decolorization of the dye compared to that of the modified PDA media.
