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Table 1 Influence of metal salts on the production of catalase from Geobacillus sp. BSS-7

From: Tailoring nutritional and process variables for hyperproduction of catalase from a novel isolated bacterium Geobacillus sp. BSS-7

Metal salts (%, w/v) Catalase activity (IU/mg of cells) Biomass (g/100 ml)
Control 30,100 0.70
CaCl2
 0.001 13,400 0.58
 0.01 21,400 0.67
 0.05 23,400 0.74
 0.10 20,600 0.63
ZnSO4
 0.001 11,200 0.49
 0.01 24,500 0.70
 0.05 12,700 0.57
 0.10 8700 0.37
MnSO4
 0.001 6500 0.29
 0.01 10,200 0.43
 0.05 15,900 0.59
 0.10 11,200 0.47
MgSO4
 0.001 17,800 0.24
 0.01 19,300 0.31
 0.05 22,300 0.39
 0.10 12,300 0.19
FeSO4
 0.001 9100 0.41
 0.01 17,400 0.47
 0.05 12,800 0.37
 0.10 10,100 0.30
BaCl2
 0.001 23,000 0.64
 0.01 31,200 0.72
 0.05 36,400 0.85
 0.10 16,700 0.36
KI
 0.001 4300 0.30
 0.01 10,400 0.41
 0.05 11,220 0.49
 0.10 1340 0.13
Na2SO3
 0.001 900 0.09
 0.01 5400 0.23
 0.05 8300 0.34
 0.10 4800 0.17
Na2MoO4
 0.001 13,400 0.50
 0.01 21,300 0.63
 0.05 20,200 0.49
 0.10 8100 0.29