Decolorization mechanism of 1-amino-4-bromoanthraquinone-2-sulfonic acid using Sphingomonas herbicidovorans FL

被引：15

作者：

Fan, Li ^{[1
,2
]}

Zhu, Shunni ^{[1
,2
]}

Liu, Dongqi ^{[1
,2
]}

Ni, Jinren ^{[1
,2
]}

机构：

[1] Peking Univ, Dept Environm Engn, Key Lab Water & Sediment Sci, Minist Educ, Beijing 100871, Peoples R China

[2] Peking Univ, Shenzhen Grad Sch, Key Lab Environm & Urban Sci, Guangdong 518055, Peoples R China

来源：

DYES AND PIGMENTS | 2008年 / 78卷 / 01期

关键词：

bromoamine acid; anthraquinone; synthetic dyes; biodegradation; decolorization;

D O I：

10.1016/j.dyepig.2007.10.004

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Sphingomonas herbicidovorans FL decolorized 1-amino-4-bromoanthraquinone-2-sulfonic acid and grew with it as the sole carbon source. The maximum rate of decolorization was achieved during the exponential growth phase of the bacterial strain. Of the total organic carbon similar to 52% could be removed, coupled with the partial release of ammonia, bromine and sulfate. Analysis of metabolites using gas chromatography-mass spectrometry and liquid chromatography-mass spectrometry showed that phthalic acid was the metabolic intermediate and which may serve as the growth substrate for the bacteria. The end product was either 2-amino-3-hydroxy-5-bromobeiizenesulfonic acid or 2-amino-4-hydroxy-5-bromobenzenesulfonic acid. A possible metabolic pathway is proposed. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：34 / 38

页数：5

共 26 条

[1] Detection and characterization of conjugative degradative plasmids in xenobiotic-degrading Sphingomonas strains [J].