生物技术通报 ›› 2014, Vol. 0 ›› Issue (7): 156-161.

• 研究报告 • 上一篇    下一篇

一株生物表面活性剂产生菌的分离及产剂性能研究

王睿, 吴涓   

  1. 安徽大学资源与环境工程学院, 合肥 230601
  • 收稿日期:2013-12-09 出版日期:2014-07-15 发布日期:2014-07-16
  • 作者简介:王睿, 研究方向:环境微生物;E-mail:569667242@qq.com
  • 基金资助:
    安徽省教育厅重点科研项目(KJ2012A006)

Isolation of a Biosurfactant Producing Strain and Property Study

Wang Rui, Wu Juan   

  1. School of Resources and Environmental Engineering, Anhui University, Hefei 230601
  • Received:2013-12-09 Published:2014-07-15 Online:2014-07-16

摘要: 利用蓝色凝胶平板筛选法进行筛选, 从华北某油田受污染的土壤中分离出一株优良的生物表面活性剂产生菌H1, 生理生化反应及16S rDNA序列分析结果表明, 该菌属于克雷伯氏菌属(Klebsiella), 与Klebsiella pneumoniae 同源性为99%。产剂性能研究试验表明, 以4 g/L的蔗糖为碳源, 以3 g/L的硝酸铵为氮源, 初始pH值为7.0, 30℃的培养条件有利于该生物表面活性剂的合成。

关键词: 生物表面活性剂, 分离, 表面张力, 合成

Abstract: A biosurfactant-producing strain H1 was screened with blue agar plat from polluted soil of an oil field in China. The physiological and biochemical tests and phylogenetic analysis of 16S rDNA sequence showed the similarity of 99% between strain H1 and Klebsiella pneumoniae. The experiments showed that strain H1 could grow well and produce more biosurfactant under the following conditions:sucrose as carbon source, ammonium nitrate as nitrogen source, initial pH7.0 and 30℃.

Key words: Biosurfactant, Isolation, Surface tension, Production