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Table 2 Predicted responses to central composite design with three independent variables

From: Optimization of an efficient solid-phase enrichment medium for Salmonella detection using response surface methodology

Run

10% ferric citrate amine (μL)

20% sodium hyposulfite (μL)

5% cystine (μL)

Response 1 (%)

Response 2 (%)

1

9.00

12.00

7.00

96.30

97.50

2

6.00

16.00

10.00

74.07

75.00

3

14.05

12.00

7.00

85.19

85.00

4

9.00

12.00

7.00

100.00

97.50

5

6.00

8.00

4.00

52.50

47.50

6

9.00

12.00

7.00

92.59

97.50

7

6.00

8.00

10.00

66.67

65.00

8

12.00

8.00

4.00

70.37

70.00

9

3.95

12.00

7.00

37.04

40.00

10

9.00

12.00

12.05

92.59

92.50

11

12.00

16.00

4.00

85.19

85.00

12

12.00

16.00

10.00

92.60

90.00

13

6.00

16.00

4.00

74.07

72.50

14

9.00

18.73

7.00

96.29

92.50

15

12.00

8.00

8.00

85.19

90.00

16

9.00

12.00

1.95

62.96

67.50

17

9.00

12.00

7.00

96.30

100.00

18

9.00

12.00

7.00

100.00

100.00

19

9.00

12.00

7.00

100.00

97.50

20

9.00

5.27

7.00

51.85

50.00

  1. Response 1 means the isolation rate of the 9 standard Salmonella; Response 2 means the isolation rate of 40 local Salmonella strains