| Enterobacter sp. LY402在液相体系中好氧降解氯丹的研究 |
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| 引用本文： | 闫妍,谢健,徐丽,贾凌云.Enterobacter sp. LY402在液相体系中好氧降解氯丹的研究[J].安徽农业科学,2008,36(23). |
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| 作者姓名： | 闫妍 谢健 徐丽 贾凌云 |
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| 作者单位： | 大连理工大学生物科学与工程系,辽宁大连,116024 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 目的]考察Enterobacter sp. LY402在好氧条件下对氯丹的降解能力。方法]将多氯联苯高效降解菌株Enterobacter sp. LY402运用到氯丹的好氧降解中,系统考察了LY402在好氧条件下降解过程的影响因素。结果]在不加入其他碳源的情况下,对1.0 mg/L氯丹混合物的4 d降解率达到94%,对于浓度高达10.0 mg/L氯丹混合物总降解率也能达到61%以上。降解体系的温度和pH值对氯丹的好氧降解率有一定影响,pH值5.0~8.0,温度30~40℃对氯丹的好氧降解有利。结论]Enterobacter sp. LY402具有很强的好氧降解氯丹的能力。
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| 关 键 词： | 氯丹 好氧降解 Enterobacter sp. LY402 |
Aerobic Biodegradation of Chlordane in Liquid Culture by Enterobacter sp.LY402 |
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| YAN Yan et al.Aerobic Biodegradation of Chlordane in Liquid Culture by Enterobacter sp.LY402[J].Journal of Anhui Agricultural Sciences,2008,36(23). |
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| Authors: | YAN Yan |
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| Abstract: | Objective] The objective was to investigate Enterobacter sp.LY402's ability to biodegradae chlordane under aerobic condition.Method] Enterobacter sp.LY402,which could effectively degrade PCBs,was used to degrade chlordane in liquid culture.Effects of concentration,pH,temperature and carbon source on the degradation performance were investigated.Result] After 4-day aerobic incubation at 30 ℃ without other carbon source,more than 94% of cis-chlordane(CC) and trans-chlordane(TC) mixture with a concentration of 1.0 mg/L was degraded.When exposed to a concentration as high as 10.0 mg/L,LY402 could still degrade 61% chlordane.The results showed that a pH range of 5.0-8.0 and a temperature range of 30-40 ℃ were most favorable for growth and effective degradation of chlordane.Conclusion] Enterobacter sp.LY402 has a strong ability to biodegradae chlordane under aerobic condition. |
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| Keywords: | Enterobacter sp LY402 |
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