Table 1.

Summary of the purification of protease from S. hydrogenans var. MGS13

Purification stages	Total protein (mg)	Total enzyme activity units	Specific activity (U/mg)	Purification fold	Recovery (%)
Cell-free supernatant	12,460	51,670	4	1	100
50% ammonium sulfate precipitation	840	27,230	30	7	52
Dialyzed sample	770	22,200	40	9.7	43
Sephadex G-100	370.25	17,500	50	12	34