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茶叶科学 ›› 2015, Vol. 35 ›› Issue (1): 91-96.doi: 10.13305/j.cnki.jts.2015.01.017

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茶皂素诱导生物降解多氯联苯的初步研究

李雪莲, 方治国, 夏会龙*   

  1. 浙江工商大学环境科学与工程学院,浙江 杭州 310018
  • 收稿日期:2014-08-06 修回日期:2014-09-22 出版日期:2015-02-15 发布日期:2019-08-23
  • 通讯作者: * hlxia@zjgsu.edu.cn
  • 作者简介:李雪莲,女,硕士研究生,主要从事环境生物与生态修复技术研究。
  • 基金资助:
    浙江省自然科学基金(Y5090229)

Preliminary Research on Induced Biodegradation of PCBs of Tea Saponin

LI Xuelian, FANG Zhiguo, XIA Huilong*   

  1. College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
  • Received:2014-08-06 Revised:2014-09-22 Online:2015-02-15 Published:2019-08-23

摘要: 从土壤中筛选分离出两株茶皂素利用菌WTS和YTS,这两个菌株在利用茶皂素生长繁殖的同时,对多氯联苯(PCBs)的降解有明显的促进作用。在茶皂素共存的条件下,WTS菌对PCB 77、PCB 118和PCB 138的降解速率常数分别提高了4.3倍、4.8倍和2.8倍,YTS菌对PCB 77、PCB 118和PCB 138的降解速率常数分别提高了7.1倍、9.1倍和8.9倍。结果初步表明,茶皂素能明显促进微生物对多氯联苯的降解,可望开发成一种良好的PCBs降解诱导剂,值得进一步深入研究。

关键词: 茶皂素, 微生物, PCBs, 诱导生物降解

Abstract: Two bacterial strains named temporally as WTS and YTS were separated from the soil, and they could utilize tea saponin for growing and showed significant promotion effect on the biodegradation of PCBs. Under the condition of coexistence with tea saponin, the degradation rate constants of PCB 77, PCB 118 and PCB 138 were increased by 4.3 times, 4.8 times and 2.8 times, respectively, by WTS, and 7.1 times, 9.1 times and 8.9 times. respectively, by YTS compared to those treatments without tea saponin. The results indicated that tea saponin could promote the biodegradation of PCBs, implying that tea saponin might be a potential inducer for the biodegration of PCBs.

Key words: tea saponin, microorganism, PCBs, induced biodegradation

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