Screening of static culture and comparison of batch and continuous culture for the textile dye biological decolorization by Phanerochaete chrysosporium
AUTOR(ES)
Urra, J., Sepúlveda, L., Contreras, E., Palma, C.
FONTE
Brazilian Journal of Chemical Engineering
DATA DE PUBLICAÇÃO
2006-09
RESUMO
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.
Documentos Relacionados
- Modelling the growth kinetics of Phanerochaete chrysosporium in submerged static culture.
- Decolorization of Several Polymeric Dyes by the Lignin-Degrading Basidiomycete Phanerochaete chrysosporium
- Decolorization of Azo, Triphenyl Methane, Heterocyclic, and Polymeric Dyes by Lignin Peroxidase Isoenzymes from Phanerochaete chrysosporium
- Rapid Dye Decolorization Method for Screening Potential Wood Preservatives
- Decolorization of a textile dye, reactive red 198 (rr198), by Aspergillus parasiticus fungal biosorbent