Chemicals Population (n=3) CFU/carrier
Not added (Control) 1.02×103
0.1% CaCO3 2.56×103
0.2% Calcium lactate 1.75×103
0.1% Panvitan powder 1.64×103
0.1% Amino acid mixture 1.72×103
ATP at 100 μg/ml 1.15×103
0.5% Yeast extract 9.73×103
0.5% Soluble starch 1.34×103
Catalase at 150 μg/ml 1.15×103
L-alanine at 100 μg/ml 1.92×103
0.5% sodium pyruvate 1.84×103
1% fresh milk 1.16×103
1% skim milk 1.55×103
BI of G. stearothermophilus ATCC 7953 was treated with moist heating at 121.1°C for 4 min
Table 6: Recovery effect of several sorts of chemicals on SCDA culture medium from M company.