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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

Authors 

Seong Bin KimChi-Kyung KimHee Sik KimChang Ho LeeKee Sun ShinGi Seok KwonByung Dae YoonHee-Mock Oh

Publisher 

Korean Journal of Applied Microbiology and Biotechnology

Issue Date 

1996

Citation 

Korean Journal of Applied Microbiology & Biotechnology, vol. 24, no. 6, pp. 743-748

Keywords 

BiodegradationCandida tropicalis PW-51Ortho-cleavagePhenol

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.

ISSN 

0257-2389

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2017-04-19


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