Degradation of nicotine in tobacco waste extract by newly isolated Pseudomonas sp. ZUTSKD

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• 作者：Weihong Zhong ; Chenjing Zhu ; Ming Shu ; Kedan Sun ; Lei Zhao ; Chang Wang ; Zhijuan Ye ; Jianmeng Chen
• 关键词：Nicotine ; Degradation ; Pseudomonas sp. ; Tobacco waste extract
• 刊名：Bioresource Technology
• 出版年：2010
• 出版时间：September 2010
• 年：2010
• 卷：101
• 期：18
• 页码：6935-6941
• 全文大小：395 K

文摘

The newly isolated Pseudomonas sp. ZUTSKD was evaluated for its ability to degrade nicotine in tobacco waste extract (TWE). The strain degraded nicotine completely when the concentration of reducing sugar in TWE was lower than 8 g L⁻¹. Yeast extract and phosphate additions improved nicotine degradation in 5 % TWE. At 30 °C and pH 7.0, with additional 15 g L⁻¹ Na₂HPO₄·6H₂O and 6 g L⁻¹ KH₂PO₄ in 5 % TWE, Pseudomonas sp. ZUTSKD could degrade 97 % of nicotine (1.6 g L⁻¹) in 12 h. The data showed that strain ZUTSKD could be useful to control the nicotine content in TWE.