Biodegradation of brominated aromatics by cultures and laccase of Trametes versicolor

被引：40

作者：

Uhnakova, B. ^{[1
]}

Petrickova, A. ^{[1
]}

Biedermann, D. ^{[1
]}

Homolka, L. ^{[1
]}

Vejvoda, V. ^{[1
]}

Bednar, P. ^{[2
]}

Papouskova, B. ^{[2
]}

Sulc, M. ^{[1
]}

Martinkova, L. ^{[1
]}

机构：

[1] Acad Sci Czech Republ, Inst Microbiol, CR-14220 Prague, Czech Republic

[2] Palacky Univ Olomouc, Fac Sci, Dept Analyt Chem, Olomouc 77146, Czech Republic

来源：

CHEMOSPHERE | 2009年 / 76卷 / 06期

关键词：

Brominated phenols; Tetrabromobisphenol A; Laccase; Trametes versicolor; ABTS; BISPHENOL-A; PURIFIED LACCASE; OXIDATION; 2,4,6-TRIBROMOPHENOL; DEGRADATION; TRANSFORMATION; MEDIATOR; ABILITY;

D O I：

10.1016/j.chemosphere.2009.04.016

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

2-Bromophenol (1), 4-bromophenol (2), 2,4-dibromophenol (3), 2,6-dibromophenol (4), 2,4,6-tribromophenol (5) and tetrabromobis phenol A (6) (1 mM each) added to growing submerged cultures of Trametes versicolor CCBAS 612 were eliminated by 65-85% from the culture medium within 4 d. Extracellular laccase activity in the culture medium was influenced by the type of brominated compound added. Maximum level of laccase (63 U L-1) was found in the culture with 2-bromophenol. Tetrabromobisphenol A was degraded by a commercial laccase from Trametes versicolor in absence of any oxidation mediator, hydroxylated dibrominated compounds being detected as soluble reaction products by LC/MS. A significant degradation of brominated phenols by laccase was achieved only in the presence of ABTS structural characterization of major products suggesting reaction between bromophenol and ABTS radicals. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：826 / 832

页数：7

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