KSBB Journal

The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Isolation and Characterization of Ureolytic Bacteria for Biosequestration of Strontium

스트론튬 격리화를 위한 요소 분해 박테리아의 분리 및 특성 연구

  • Choi, Jae-Ho (Department of Biological Engineering, Inha University) ;
  • Kang, Chang-Ho (Department of Biological Engineering, Inha University) ;
  • Han, Sang-Hyun (Department of Biological Engineering, Inha University) ;
  • Kwak, Dae Young (Department of Biological Engineering, Inha University) ;
  • Oh, SooJi (Department of Biological Engineering, Inha University) ;
  • So, Jae-Seong (Department of Biological Engineering, Inha University)
  • Received : 2013.05.08
  • Accepted : 2013.05.28
  • Published : 2013.06.27
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Abstract

In this study, 52 ureolytic bacterial strains were newly isolated from various environments. From these, 2 strains (TB-15 and TB-22) were selected based on their high urease activity. XRD spectra clearly showed presence of various sequestration products such as calcite and strontianite in samples. TB-22 showed 20~30% higher survivability upon Sr concentration (20 mM) than Sporosarcina pasteurii KCTC 3558. TB-15 and TB-22 showed 80~90% higher survivability at pH 6 than S. pasteurii. The results demonstrated that the 2 isolates colud be good candidates for the bioremediation of Sr contaminated sites.

Keywords

References

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