Screening of static culture and comparison of batch and continuous culture for the textile dye biological decolorization by Phanerochaete chrysosporium

Brazilian Journal of Chemical Engineering

J. Urra¹  L. Sepúlveda¹  E. Contreras¹  C. Palma¹ 

[1] ,University of Santiago de Chile Department of Chemical Engineering Santiago,Chile

关键词: Biological decolorization;    Dyes;    Fixed bed bioreactor;    Manganese dependent peroxidase;   

DOI  :  10.1590/S0104-66322006000300002

来源: SciELO

【 摘 要 】

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.

【 授权许可】

CC BY   
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