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

Table 1 Influence of metal salts on the production of catalase from 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

ISSN: 1475-2859