首页> 外文期刊>Journal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastes >Biodegradation of nicotine by a novel Strain Shinella sp. HZN1 isolated from activated sludge
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Biodegradation of nicotine by a novel Strain Shinella sp. HZN1 isolated from activated sludge

机译:新型菌株Shinella sp。对烟碱的生物降解。从活性污泥中分离出HZN1

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摘要

The nicotine-degrading bacterium HZN1 was isolated from activated sludge and identified as Shinella sp. based on its physiological characteristics and analysis of 16S rDNA gene. Strain HZN1 is capable of using nicotine as the sole carbon source in the mineral salts medium. The optimum temperature and pH for strain HZN1 growth and nicotine degradation were 30°C and 7.0, respectively. It could degrade approximately 100 % of 0.5 g L−1 of nicotine within 9 h. Three intermediate metabolites were produced by the strain HZN1 and identified as cotinine, myosmine and nicotyrine using gas chromatography-mass spectrometry. This is the first report of nicotine-degrading strain from the genus of Shinella. The results showed that strain HZN1 could be potentially employed in bioremediation of nicotine. Our findings would provide a new insight into the biodegradation of nicotine.
机译:从活性污泥中分离出尼古丁降解细菌HZN1,并将其鉴定为Shinella sp。根据其生理特性和对16S rDNA基因的分析。 HZN1菌株能够使用尼古丁作为矿物盐介质中的唯一碳源。菌株HZN1生长和尼古丁降解的最佳温度和pH分别为30°C和7.0。它可以在9小时内降解0.5 g L â1尼古丁中的约100%。 HZN1菌株产生了三种中间代谢产物,并通过气相色谱-质谱法鉴定为可替宁,肌苷和烟碱。这是Shinella属中尼古丁降解菌株的首次报道。结果表明,菌株HZN1可潜在地用于尼古丁的生物修复。我们的发现将为尼古丁的生物降解提供新的见解。

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    Research Center of Environmental Science, Zhejiang University of Technology, Hangzhou, People's Republic of China;

    Institute of Environmental Science, Zhejiang University, Hangzhou, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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  • 入库时间 2022-08-18 00:57:59

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