Abstract
The dye decolorization rate in a cell-free culture broth of the white-rot fungus Trametes versicolor CBR43 was studied, including the effects of inhibitors of NaCl, Zn(II), and Cd(II) on dye decolorization activity. The maximum rates of dye decolorization in cell-free culture broth were 1,410, 44.7, 41.2, and 0.19 µmol·l-1·min-1 for Acid Blue 62, Acid Black 175, Reactive Blue 4, and Acid Red 114, respectively. The inhibition effects of NaCl, Zn(II), and Cd(II) on dye decolorization were quantitatively compared using the half maximal inhibition concentration (IC50), which indicates the concentration of an inhibitor required for 50% inhibition. Based on IC50values, dye decolorization in the cell-free culture broth of CBR43 was most potently inhibited by Cd(II), whereas the inhibitory effect of NaCl was relatively low. The dye decolorization rates and IC50 data can be used in the design and development of a dye-wastewater treatment process using T. versicolor CBR43 and its operating factors.
Original language | English |
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Pages (from-to) | 155-160 |
Number of pages | 6 |
Journal | Journal of Microbiology and Biotechnology |
Volume | 27 |
Issue number | 1 |
DOIs | |
State | Published - 1 Jan 2017 |
Bibliographical note
Publisher Copyright:© 2017 by The Korean Society for Microbiology and Biotechnology.
Keywords
- Cell-free culture broth
- Decolorization
- Inhibitor
- Kinetic analysis
- Trametes versicolor