Isolation and characterization of a phenol-degrading Candida tropicalis PW-51 = 페놀분해 효모 Candida tropicalis PW-51의 분리 및 분해특성

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Title
Isolation and characterization of a phenol-degrading Candida tropicalis PW-51 = 페놀분해 효모 Candida tropicalis PW-51의 분리 및 분해특성
Author(s)
Seong Bin Kim; Chi-Kyung Kim; Hee Sik Kim; Chang Ho Lee; Kee Sun Shin; Gi Seok Kwon; Byung Dae Yoon; Hee-Mock Oh
Bibliographic Citation
Korean Journal of (Applied) Microbiology & Biotechnology, vol. 24, no. 6, pp. 743-748
Publication Year
1996
Abstract
For the biological treatment of phenolic resin wastewater containing phenol and formaldehyde, a phenol-degrading yeast was isolated from the papermill sludge, and then identified as Candida tropicalis PW-51 according to morphological, physiological and biochemical properties. The strain was able to degrade high phenol concentrations up to 2,000 mg/l within 58 hours in batch cultures. Phenol-degrading efficiency by the strain was maximum at the culture conditions of a final concentration of 9×106 cells/ml, 30°C and pH7.0. The mean degradation rate of phenol was highest at 45.5 mg/l/h in 1,000 mg/l phenol from 500 mg/l to 2,000 mg/l phenol. Because the enzyme activity of catechol 1,2-dioxygenase increased in the course of degradation of phenol, it seems that this strain degrades phenol via the ortho-cleavage of benzene ring. The isolate C. tropicalis PW-51 could be effectively used for the biological treatment of phenolic resin wastewater.
Keyword
Candida tropicalis PW-51Ortho-cleavagePhenolBiodegradation
ISSN
0257-2389
Publisher
Korea Soc-Assoc-Inst
Type
Article
Appears in Collections:
Synthetic Biology and Bioengineering Research Institute > Cell Factory Research Center > 1. Journal Articles
Division of Biomedical Research > Microbiome Convergence Research Center > 1. Journal Articles
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