|
|
|
|
| |
|
|
| Wanderley,Carlos Ronald Pessoa; Andrade,Marcus Vinícius; Pereira,Luciana José; Silva,Gloria Maria Marinho; Pessoa,Kelly Rodrigues. |
| ABSTRACT The mineralization of the azo dye congo red by the fungi Phanerochaete chrysosporium was studied in two sequential batch bioreactors (R1 and R2), operated in cycles of 48 h (step I) and 24 h (step II). In step I, glucose concentration was 1 g.L-1 in both reactors and in step II, 1 g.L-1 of glucose was maintained in R1, but R2 received no addition of glucose. In step I, the average dye removal efficiencies were 76 ± 29 % (R1) and 53 ± 15% (R2), while in step II the averages recorded for dye removal for R1 and R2 were 84 ± 15 and 70 ± 28%, respectively. The rates of dye removal were 0.04 h-1 in R1 and 0.03 h-1 in R2 in step I. Higher rates were obtained in step II, 0,07 h-1 and 0,02 h-1 for R1 and R2, respectively. The highest dye removal occurred... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodegradation; Congo red; Phanerochaete chrysosporium; Sequential bioreactors. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100606 |
| |
|
| |
|
|
| Urek,Raziye Ozturk; Pazarlioglu,Nurdan Kasikara. |
| Production of manganese-dependent peroxidase (MnP) by the white-rot fungus Phanerochaete chrysosporium BKM-F-1767 (ATCC 24725) was monitored during growth in different media and growth conditions. The effect of some activators of MnP production, Mn2+, Tween 80, phenylmethylsulphonylfloride (PMSF), oxygen, temperature, pH, glycerol and nitrogen was studied. Supplementing the cultures with Tween 80 (0.05 %, v/v) and Mn2+ (174 µM) resulted a maximum MnP activity of 356 U/L which was approximately two times higher than that obtained in the control culture (without Tween 80). Decolourisation of Direct Blue 15 and Direct Green 6 (50 mg/L) was also achieved with MnP. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phanerochaete chrysosporium; Manganese dependent peroxidase; Tween 80; Mn2+; Phenylmethylsulphonylfloride. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000700001 |
| |
|
| |
|
|
|
