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Vol.1 , No. 3, Publication Date: Jul. 10, 2015, Page: 31-37
. All strains showed high decolorization capacity and were able to decolorize the green dye with at different degrees. The strains not only decolorized the dye, but also in parallel showed varied levels of laccase and Lignin peroxidase production through the course of decolorization. These two enzymes are known to play significant role in dye biodegradation. Three fungal strains were found to have capacity to decolorize as high as 600 mg/L concentration of this dye in the growth medium. The dye was not just only being decolorized but also was degraded as evident from the UV-Visible Spectra analysis that shows the ability of fungi to degrade this recalcitrant organic dye. The optimum Direct green dye concentration in growth media was in the range of 200 to 500 ppm. Also the result reflects that the fungus growth is affected by the tested dye concentrations.&picture=http://www.aascit.org/aascit/decorators/img/journal/897.jpg)
| [1] | Wafaa M. Abd-El Rahim, Agricultural Microbiology Depart. National Research Centre, Dokki, Cairo, Egypt. |
| [2] | Hassan Moawad, Agricultural Microbiology Depart. National Research Centre, Dokki, Cairo, Egypt. |
| [3] | Talaat El Sebai, Agricultural Microbiology Depart. National Research Centre, Dokki, Cairo, Egypt. |
The ability to decolorize Direct green dye by seven fungal strains, previously isolated from industrial effluent discharge site, was evaluated at varying dye concentrations (200, 400, 500, 600 mg/l). All strains showed high decolorization capacity and were able to decolorize the green dye with at different degrees. The strains not only decolorized the dye, but also in parallel showed varied levels of laccase and Lignin peroxidase production through the course of decolorization. These two enzymes are known to play significant role in dye biodegradation. Three fungal strains were found to have capacity to decolorize as high as 600 mg/L concentration of this dye in the growth medium. The dye was not just only being decolorized but also was degraded as evident from the UV-Visible Spectra analysis that shows the ability of fungi to degrade this recalcitrant organic dye. The optimum Direct green dye concentration in growth media was in the range of 200 to 500 ppm. Also the result reflects that the fungus growth is affected by the tested dye concentrations.
Keywords
Substrate Concentration, Degrading Dye, Fungal Biomass
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