Comparison of Rhodococcus erythropolis CS98 Strain Immobilized in Agarose Gel and PVA Gels for Accumulation of Radioactive Cs-137

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Toma Kamagasako¹  Yudai Yuzi¹  Masahiro Yoshida¹  Takayuki Takei¹  Noriko Tomioka² 

[1]Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University

[2]Center for Regional Environmental Research, National Institute for Environmental Studies

关键词: Cesium;    Rhodococcus erythropolis CS98;    Immobilized Cell;    Agarose;    Poly(vinyl alcohol);   

DOI  :  10.1252/jcej.14we384

来源: Maruzen Company Ltd

【 摘 要 】

References(22)Cited-By(1)The removal of radioactive 137Cs from contaminated soil and water is urgently needed in Japan. Rhodococcus erythropolis CS98 strain possesses a higher ability for cesium accumulation than previously-reported microorganisms. Immobilization of CS98 strain in polymer supports shows promise for efficient cesium removal. In this study, we compared agarose gel and 3 types of PVA gels for CS98 strain immobilization. We clarified that (i) the mechanical strength of the PVA gels was higher than that of agarose gel, (ii) CS98 strain immobilized in agarose gel could accumulate radioactive 137Cs, and (iii) the ability of the strain for radioactive cesium accumulation was higher in agarose gel than in PVA gels. These results demonstrate that agarose gel is more promising as a polymer support material for CS98 strain than PVA gels.

【 授权许可】

Unknown