Table 2. Purification of CatB from succinate-grown cells of Rhodococcus sp. AN-22.

Fraction	Total activity (units)	Total protein (mg)	Specific activity (units/mg)	Recovery (%)
Cell extract	240	1800	0.14	100
Streptomycin sulphate	200	2600	0.078	82
Ammonium sulphate	220	470	0.48	92
DE52	140	51	2.7	57
DEAE-Toyopearl 650S	140	6.4	22	58
HW-55S	80	1.6	50	33
Phenyl-Toyopearl 650S	42	0.81	52	18