ABIOTIC REDUCTION OF 4-CHLORONITROBENZENE TO 4-CHLOROANILINE IN A DISSIMILATORY IRON-REDUCING ENRICHMENT CULTURE

被引：64

作者：

HEIJMAN, CG ^{[1
]}

HOLLIGER, C ^{[1
]}

GLAUS, MA ^{[1
]}

SCHWARZENBACH, RP ^{[1
]}

ZEYER, J ^{[1
]}

机构：

[1] SWISS FED INST ENVIRONM SCI & TECHNOL,LIMNOL RES CTR,CH-6047 KASTANIENBAUM,SWITZERLAND

来源：

APPLIED AND ENVIRONMENTAL MICROBIOLOGY | 1993年 / 59卷 / 12期

关键词：

D O I：

10.1128/AEM.59.12.4350-4353.1993

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：

4-chloronitrobenzene (4-Cl-NB) was rapidly reduced to 4-chloroaniline with half-lives of minutes in a dissimilatory Fe(III)-reducing enrichment culture. The initial pseudo-first-order rate constants at 25-degrees-C ranged from 0.11 to 0.19 per minute. The linear Arrhenius correlation in a temperature range of 6 to 85-degree-C and the unchanged reactivity after pasteurization indicated that the nitroreduction occurred abiotically. A fine-grained black solid which was identified as poorly crystalline magnetite (Fe3O4) by X-ray diffraction accumulated in the enrichments. Magnetite produced by the Fe(III)-reducing bacterium Geobacter metallireducens GS-15 and synthetic magnetite also reduced 4-Cl-NB. These results suggest that the reduction of 4-Cl-NB by the enrichment material was a surface-mediated reaction by dissimilatory formed Fe(II) associated with magnetite.

引用

页码：4350 / 4353

页数：4