| RRC ID |
84916
|
| Author |
Endo R, Karasawa S, Aoyagi H.
|
| Title |
Simultaneous removal of caesium and strontium using different removal mechanisms of probiotic bacteria.
|
| Journal |
Sci Rep
|
| Abstract |
When radioactive materials are released into the environment due to nuclear power plant accidents, they may enter into the body, and exposing it to internal radiation for long periods of time. Although several agents have been developed that help excrete radioactive elements from the digestive tract, only one type of radioactive element can be removed using a single agent. Therefore, we considered the simultaneous removal of caesium (Cs) and strontium (Sr) by utilising the multiple metal removal mechanisms of probiotic bacteria. In this study, the Cs and Sr removal capacities of lactobacilli and bifidobacteria were investigated. Observation using an electron probe micro analyser suggested that Cs was accumulated within the bacterial cells. Since Sr was removed non metabolically, it is likely that it was removed by a mechanism different from that of Cs. The amount of Cs and Sr that the cells could simultaneously retain decreased when compared to that for each element alone, but some strains showed only a slight reduction in removal. For example, Bifidobacterium adolescentis JCM1275 could simultaneously retain 55.7 mg-Cs/g-dry cell and 8.1 mg-Sr/g-dry cell. These results demonstrated the potentials of utilizing complex biological system in simultaneous removal of multiple metal species.
|
| Volume |
14(1)
|
| Pages |
7630
|
| Published |
2024-4-1
|
| DOI |
10.1038/s41598-024-57678-8
|
| PII |
10.1038/s41598-024-57678-8
|
| PMID |
38561437
|
| PMC |
PMC10984957
|
| MeSH |
Bacteria
Cesium*
Cesium Radioisotopes
Strontium*
Strontium Radioisotopes / analysis
|
| Resource |
| General Microbes |
JCM1028
JCM1130
JCM1134
JCM1254
JCM1260
JCM1275 |
