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Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2011 by Universidad Católica de Valparaíso -- Chile
Vol. 14 No. 3, Issue of May 15, 2011
 

Table 1. Experimental design and results of the Central Composite Design on GABA production in modified MRS by Lactobacillus plantarum DW12.



Trial number

Sucrose (X1)
% (W/V)

MSG (X2)
% (W/V)

Initial pH (X3)

GABA content (mg/L)

Predicted

actual

1

6.00

0.00

5.00

16.80

16.72

2

12.00

0.00

5.00

9.06

9.07

3

6.00

2.00

5.00

24.71

24.29

4

12.00

2.00

5.00

13.57

14.17

5

6.00

0.00

7.00

15.08

14.19

6

12.00

0.00

7.00

9.69

9.82

7

6.00

2.00

7.00

23.95

23.64

8

12.00

2.00

7.00

15.15

14.94

9

6.00

1.00

6.00

23.34

25.04

10

12.00

1.00

6.00

15.08

14.55

11

9.00

0.00

6.00

12.37

13.20

12

9.00

2.00

6.00

19.06

19.41

13

9.00

1.00

5.00

16.71

16.60

14

9.00

1.00

7.00

16.64

17.92

15

9.00

1.00

6.00

17.80

16.67

16

9.00

1.00

6.00

17.80

16.11

17

9.00

1.00

6.00

17.80

16.17

18

9.00

1.00

6.00

17.80

18.66

19

9.00

1.00

6.00

17.80

17.23

20

9.00

1.00

6.00

17.80

19.63