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季铵化合物的细菌代谢

Bacterial metabolism of quaternary ammonium compounds.

作者信息

Dean-Raymond D, Alexander M

出版信息

Appl Environ Microbiol. 1977 May;33(5):1037-41. doi: 10.1128/aem.33.5.1037-1041.1977.

Abstract

Of 10 quaternary ammonium compounds tested for biodegradation by the biological oxygen demand technique, only decyl- and hexadecyltrimethylammonium bromides were decomposed by organisms derived from sewage and soil. A mixture consisting of individual strains of Pseudomonas and Xanthomonas grew in solutions containing decyltrimethylammonium bromide as sole carbon source. The xanthomonad metabolized this quaternary ammonium compound in the presence of other organic molecules. The products of this activity included 9-carboxynomyl- and 7-carboxyheptyltrimethylammonium, suggesting that the terminal carbon of the decyl moiety is oxidized and the resulting carboxylic acid is subject to beta-oxidation.

摘要

在用生物需氧量技术测试的10种季铵化合物中,只有癸基三甲基溴化铵和十六烷基三甲基溴化铵能被来自污水和土壤的微生物分解。由假单胞菌属和黄单胞菌属的单个菌株组成的混合菌能在以癸基三甲基溴化铵作为唯一碳源的溶液中生长。在其他有机分子存在的情况下,黄单胞菌能代谢这种季铵化合物。该活性的产物包括9-羧基壬基三甲基铵和7-羧基庚基三甲基铵,这表明癸基部分的末端碳被氧化,生成的羧酸会进行β-氧化。

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