Anaerobic degradation of sodium dodecyl sulfate (SDS) by denitrifying bacteria

被引：25
|
作者：
Paulo, A. M. S. [1 ,2 ]
Plugge, C. M. [1 ]
Garcia-Encina, P. A. [2 ]
Stams, A. J. M. [1 ]
机构：
[1] Wageningen Univ, Microbiol Lab, NL-6703 HB Wageningen, Netherlands
[2] Univ Valladolid, Dept Chem Engn & Environm Technol, E-47011 Valladolid, Spain
来源：
INTERNATIONAL BIODETERIORATION & BIODEGRADATION | 2013年 / 84卷
关键词：
Anionic surfactants; Sodium dodecyl sulfate; Detergents; Denitrification; Nitrate; Pseudomonas; SOUTH-WALES RIVER; ANIONIC SURFACTANTS; DEGRADING BACTERIA; WASTE-WATER; BIODEGRADATION; ALKYLSULFOHYDROLASE; PSEUDOMONAS-C12B; ENVIRONMENT; REDUCTION; EMISSIONS;
D O I：
10.1016/j.ibiod.2013.05.027
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：
Two denitrifying bacteria were isolated using sodium dodecyl sulfate (SDS) as substrate. Strains SN1 and SN2 were isolated from an activated sludge reactor of a wastewater treatment plant (WWTP) with Anaerobic-Anoxic-Oxic (A(2)/O) steps. Based on 16S rRNA gene analysis strain SN1 is 99% similar to Pseudomonas stutzeri (CCUG 11256(T)), while strain SN2 is 99% similar to Pseudomonas nitroreducens (DSM 143991). The two novel strains are able to grow with a variety of organic compounds, including intermediates of SDS degradation. Alkylsulfatase activity was induced by SDS in strain SN1 and was enhanced by SDS in strain SN2. The type strain P. stutzeri (CCUG 11256(T)) is not able to grow with SDS. However, P. nitroreducens (DSM 14399(T)) is able to degrade and grow with SDS and nitrate or oxygen as electron acceptors, adding new information to the physiological abilities of this type strain. (c) 2013 Elsevier Ltd. All rights reserved.
引用
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页码：14 / 20
页数：7
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