| Journal: | Brazilian journal of chemical engineering |
| Database: | PERIÓDICA |
| System number: | 000309058 |
| ISSN: | 0104-6632 |
| Authors: | Urra, J1 Sepúlveda, L Contreras, E Palma, C |
| Institutions: | 1Universidad de Santiago de Chile, Departamento de Ingeniería Química, Santiago de Chile. Chile |
| Year: | 2006 |
| Season: | Sep |
| Volumen: | 23 |
| Number: | 3 |
| Pages: | 281-290 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | The production of manganese dependent peroxidase (MnP) by Phanerochaete chrysosporium and the level of decolorization of 13 dyes were evaluated using static and agitated batch cultures and continuous cultures. A screening carried out under static conditions showed that the oxidative system has a certain affinity for azoic structures. For concentrations of 100 mg l-1 of Acid Black 1, Reactive Black 5, Reactive Orange 16 and Acid Red 27, decolorization percentages higher than 90% were obtained. In batch cultures with Acid Black 1 and Reactive Black 5 a significant increment in primary post-metabolism biomass was observed. For these last two dyes, it was possible to explore the response of the continuous system during 32 to 47 days, with concentrations between 25 to 400 mg l-1, obtaining decolorization percentages greater than 70% for 400 mg l-1 |
| Disciplines: | Química |
| Keyword: | Biotecnología, Decoloración biológica, Colorantes, Biorreactor de lecho fijo, Peroxidasa, Phanerochaete chrysosporium |
| Keyword: | Chemistry, Biotechnology, Biological decolorization, Dyes, Fixed bed bioreactor, Peroxidase, Phanerochaete chrysosporium |
| Full text: | Texto completo (Ver HTML) |
