Added chemicals Average population (n=3), CFU/carrier
4.5 kGy exposure
B. megaterium B. pumilus
Not added (Control) 1.78×103 2.51×103
0.1% CaCO3 1.41×103 2.32×103
0.2% Calcium lactate 2.13×103 2.52×103
0.5%Glucose 2.17×103 2.70×103
0.5%Sodium pyruvate 1.88×103 2.68×103
L-alanine 1.86×103 2.61×103
D-alanine 2.62×103 2.56×103
0.1% Panvitan powder 1.93×103 3.06×103
0.1% Amino acids mixture 1.95×103 2.95×103
Initial population of B. megaterium was 1.4×106 CFU/carrier and that of B. pumilus was 2.0×106 CFU/carrier
Table 12: Injured population of B. megaterium or B. pumilus exposed with electron beam at 4.5 kGy, which cultivated in SCDA from N company.