Table 1 Summary of purification of enzymes at different steps.

From: Multi enzyme production and alginate encapsulation from Bacillus subtilis for stable feed additives

Enzymes

Purification steps

Activity (U/mL)

Protein content (mg/mL)

Specific activity (IU/mg of protein)

Purification (fold)

Protease

Crude enzyme

6.25

4.84

1.29

1

(NH4)2SO4 precipitation

4.375

0.32

13.7

6.34

Dialysis

3.187

0.17

18.3

12.67

Sepharose CL-6B

2.125

0.08

26.4

87.5

Lipase

Crude enzyme

20.45

1.218

16.78

1

(NH4)2SO4 precipitation

14.29

0.45

31.62

5.9

Dialysis

12.09

0.309

39.08

7.63

Sepharose CL-6B

6.98

0.084

82.73

42.6

Cellulase

Crude enzyme

85.76

12.06

7.11

1

(NH4)2SO4 precipitation

27.98

1.905

14.68

2.06

Dialysis

5.87

0.175

33.5

31.22

Sepharose CL-6B

4.65

0.054

85.3

68.12

Amylase

Crude enzyme

9.02

0.673

13.4

1

(NH4)2SO4 precipitation

6.05

0.212

28.5

18.7

Dialysis

5.67

0.151

37.4

21.09

Sepharose CL-6B

1.63

0.029

56.2

89.03