به منظور استفاده در رنگزدايي پسابهاي سلولزي و ليگنوسلولزي ASPERGILLUS NIGER بهينه سازي قارچ

Improvement of Aspergillus niger cellulolytic and lignocellulolytic effluents decolorization potential

In present study a marine isolate of Aspergillus niger was isolated from Caspian sea (Assadi and Tavasolei 1995), was used. The isolated fungus was exposed to UV radiation for different period of time , thus 99% of cells were killed. Decolorization potential of UV exposed colonies compared to wild type isolate. The results showed that there is different decolorization rate among mutants and between mutants and wild type strains. The mutant strain numbers 63(13.68% ) and M.49 (94%) showed minimum and maximum decolorization rate , respectively, whereas wild type strain showed 67% decolorization rate. Approximately 2 g dry weight of mycelium were used to decolorize one liter of effluent.