Research Article

Congo Red Decolorization and Detoxification by Aspergillus niger: Removal Mechanisms and Dye Degradation Pathway

Figure 4

FTIR spectra of inactive A. niger before (a) and after biosorption of CR dye (b) (100 mL broth medium and 200 mg. L−1 CR dye inoculated by 2g of autoclaved fresh fungal biomass of A. niger (inactivated biomass) incubated at 30°C for 48 h under stirred conditions (120 rpm)).