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Effect of gamma irradiation on Burkholderia thailandensis (Burkholderia pseudomallei surrogate) survival under combinations of pH and NaCl
- Source :
-
Radiation Physics & Chemistry . Apr2010, Vol. 79 Issue 4, p545-548. 4p. - Publication Year :
- 2010
-
Abstract
- Abstract: This study evaluated the effect of gamma irradiation on Burkholderia thailandensis (Burkholderia pseudomallei surrogate; potential bioterrorism agent) survival under different levels of NaCl and pH. B. thailandensis in Luria Bertani broth supplemented with NaCl (0ā3%), and pH-adjusted to 4ā7 was treated with gamma irradiation (0ā0.5kGy). Surviving cell counts of bacteria were then enumerated on tryptic soy agar. Data for the cell counts were also used to calculate D 10 values (the dose required to reduce 1logCFU/mL of B. thailandensis). Cell counts of B. thailandensis were decreased (P<0.05) as irradiation dose increased, and no differences (Pā„0.05) in cell counts of the bacteria were observed among different levels of NaCl and pH. D 10 values ranged from 0.04 to 0.07kGy, regardless of NaCl and pH level. These results indicate that low doses of gamma irradiation should be a useful treatment in decreasing the potential bioterrorism bacteria, which may possibly infect humans through foods. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 0969806X
- Volume :
- 79
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Radiation Physics & Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 47824836
- Full Text :
- https://doi.org/10.1016/j.radphyschem.2009.12.004