Characterization of dye decolorization in cell-free culture broth of Trametes versicolor CBR43

Hyun Ryu, Hee Wook Ryu, Kyung Suk Cho

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

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 languageEnglish
Pages (from-to)155-160
Number of pages6
JournalJournal of Microbiology and Biotechnology
Volume27
Issue number1
DOIs
StatePublished - 1 Jan 2017

Keywords

  • Cell-free culture broth
  • Decolorization
  • Inhibitor
  • Kinetic analysis
  • Trametes versicolor

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