Chemicals Population (n=3) CFU/carrier Not added (Control) 2.80×103 0.1% CaCO3 4.61×103 0.2% Calcium lactate 4.33×103 0.1% Panvitan powder 2.76×103 L-alanine at 100 μg/ml 4.44×103 D-alanine at 100 μg/ml 1.95×103 L-serine at 100 μg/ml 2.50×103 0.2% MgCl2 2.86×103 0.1% Amino acid mixture 4.17×103 0.5% Sodium pyruvate 4.73×103 Lysozyme from egg white at 100 μg/ml 2.14×103 ATP at 100 μg/ml 2.66×103 BI of B. atrophaeus ATCC 9372 was treated with dry heating at 160°C for 5 min

Table 3: Recovery effect of several sorts of chemicals on SCDA culture medium from N company.