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Table 3 Factors and levels in central composite rotatable design (CCRD)

From: Optimization of culture conditions to produce high yields of active Acetobactersp. CCTCC M209061 cells for anti-Prelog reduction of prochiral ketones

Factor

Name

Coded level

  

-2

-1

0

1

2

X1

Glucose (g/L)

2.5

5

7.5

10

12.5

X2

Soy peptone (g/L)

60

70

80

90

100

X3

MnSO4·H2O (g/L)

0.07

0.08

0.09

0.10

0.11

X4

pH

4.5

5

5.5

6

6.5

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BMC Biotechnology

ISSN: 1472-6750

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