Novel biodegradation pathways of cyclohexane by Rhodococcus sp. EC1

Taewoo Yi; Eun-Hee Lee; Yun Gyong Ahn; Geum-Sook Hwang; Kyung-Suk Cho

doi:10.1016/j.jhazmat.2011.04.080

Novel biodegradation pathways of cyclohexane by Rhodococcus sp. EC1

J Hazard Mater. 2011 Jul 15;191(1-3):393-6. doi: 10.1016/j.jhazmat.2011.04.080. Epub 2011 Apr 23.

Authors

Taewoo Yi¹, Eun-Hee Lee, Yun Gyong Ahn, Geum-Sook Hwang, Kyung-Suk Cho

Affiliation

¹ Department of Environmental Science and Engineering, Ewha Womans University, Seoul, Republic of Korea.

PMID: 21571424
DOI: 10.1016/j.jhazmat.2011.04.080

Abstract

The metabolism of cyclohexanes by Rodococcus sp. EC1 was investigated using a sequential tracking method of degradation intermediate. Evidence for the formation of cyclohexanol, cyclohexaone, 2-cyclohexen-1-one, and phenol was presented. EC1 metabolized cyclohexane to phenol by aromatization of 2-cyclohexen-1-one, and furthermore gamma-butyrolactone as an intermediate of 2-cyclohexen-1-one was formed. Aromatization by EC1 was confirmed using tetrahydrofuran. Tetrahydrofuran was metabolized through aromatization reaction, involving furan and 2,3-dihydrofuran as key intermediates. EC1 can degrade cyclohexane and tetrahydrofuran in aromatization via desaturation.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Biodegradation, Environmental*
Cyclohexanes / metabolism*
Gas Chromatography-Mass Spectrometry
Rhodococcus / metabolism*

Substances

Cyclohexanes
Cyclohexane