Desulfonation and Degradation of the Disulfodiphenylethercarboxylates from Linear Alkyldiphenyletherdisulfonate Surfactants
Desulfonation and Degradation of the Disulfodiphenylethercarboxylates from Linear Alkyldiphenyletherdisulfonate Surfactants
复制标题
直链烷基二苯醚二磺酸盐表面活性剂中二磺基二苯醚羧酸盐的脱磺化和降解
DOI：
10.1128/aem.69.2.938-944.2003
复制
发表时间：
2003
影响因子：
4.4
通讯作者：
A. M. Cook
中科院分区：
文献类型：
--
作者：
D. Schleheck;M. Lechner;R. Schönenberger;M. Suter;A. M. Cook
摘要早期的工作表明，作为微生物生长碳源的商业线性单烷基二苯醚二磺酸盐表面活性剂的生物降解导致相应的二磺基二苯醚羧酸盐（DSDPEC）的定量形成，其未被降解。α-变形杆菌菌株DS-1（DSM 13023）催化这些反应。这些DSDPEC现在已经通过高压液相色谱法通过电喷雾接口耦合到质谱仪进行了表征。DSDPEC是通过ω-氧化和β-氧化指示催化剂的化合物的复杂混合物。DSDPEC在细菌培养物中进行定量磺化，其中它们作为细菌生长的唯一硫源。平均而言，每个DSDPEC物种中的一个磺酸盐基团被去除，并且分离出负责这种磺化的生物体，并鉴定为不透明红球菌ISO-5。产物主要是单磺基二苯醚羧酸酯-苯酚（MSDPEC-苯酚）。MSDPEC-酚类受到来自活性污泥的细菌的广泛异化。
ABSTRACT Earlier work showed that the biodegradation of a commercial linear monoalkyldiphenyletherdisulfonate surfactant as a carbon source for microbial growth leads to the quantitative formation of corresponding disulfodiphenylether carboxylates (DSDPECs), which were not degraded. α-Proteobacterium strain DS-1 (DSM 13023) catalyzes these reactions. These DSDPECs have now been characterized by high-pressure liquid chromatography coupled via an electrospray interface to a mass spectrometer. DSDPECs were a complex mixture of compounds which indicated catabolism via ω-oxygenation and β-oxidation. DSDPECs were subject to quantitative desulfonation in bacterial cultures in which they served as sole sulfur sources for bacterial growth. On average, one sulfonate group per DSDPEC species was removed, and the organism responsible for this desulfonation was isolated and identified as Rhodococcus opacus ISO-5. The products were largely monosulfodiphenylether carboxylate-phenols (MSDPEC-phenols). MSDPEC-phenols were subject to extensive dissimilation by bacteria from activated sludge.