Characteristics of Rhodococcus pyridinovorans PYJ-1 for the biodegradation of benzene, toluene, m-xylene (BTX), and their mixtures

被引：28
|
作者：
Jung, IG
Park, CH [1 ]
机构：
[1] Kyung Hee Univ, Coll Environm & Appl Chem, Yongin 449701, Kyunggo Do, South Korea
[2] Kyung Hee Univ, Ind Liaison Res Inst, Yongin Si 449701, Kyunggo Do, South Korea
来源：
JOURNAL OF BIOSCIENCE AND BIOENGINEERING | 2004年 / 97卷 / 06期
基金：
新加坡国家研究基金会;
关键词：
Rhodococcus pyridinovorans PYJ-1; benzene; toluene; m-xylene;
D O I：
10.1016/S1389-1723(04)70232-7
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
The degradation rates of benzene, toluene, and m-xylene (BTX) by Rhodococcus pyridinovorans PYJ-1, were highest at 30, 50, and 25 mg/l, respectively. The degradation rate was highest for toluene (0.106 mg/mg-protein (.) h) followed by benzene and m-xylene at the optimum pH and temperature of 7 and 32'C, respectively. For BTX mixtures, toluene was the preferred substrate, but degradation of each BTX was competitively inhibited by other BTX compounds. The degradation rate of each component of in the BTX mixture decreased by 57-89% depending on the concentration (1-5 mg/l) of the component compared with that of the component as a single substrate.
引用
收藏
页码：429 / 431
页数：3
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