Added chemicals Average population (n=3), CFU/carrier E×posure condition (kGy)   5 kGy Not added (Control) 4.84×102 CaCO3 6.12×102 0.2% Calcium Lactate 6.33×102 0.5% Soluble starch 4.90×102 0.15% Activated charcoal 4.80×102 L-alanine at 100 μg/ml 6.41×102 D-alanine at 100 μg/ml 6.92×102 0.1% Panvitan powder 7.15×102 0.1% Amino acids mi×ture 7.22×102 0.5% Sodium pyruvate 6.34×102 0.5% Glucose 5.50×102

Initial population was 2×106 CFU/carrier.

Table 11: Recovery effect of several sorts of chemicals added to SCDA culture medium constituent from N company by using B. pumilus spore as BI.

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