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Table 4 Examined concentration of the key variables and results of CCD experiment

From: Safe production of Aspergillus terreus xylanase from Ricinus communis: gene identification, molecular docking, characterization, production of xylooligosaccharides, and its biological activities

Trial no.

X1Ricinus communis

X2 Moistening agent

X3 Time

Activity (IU/g)

Predicted (IU/g)

Residual

1

(−)2

(−)4

(−)7

140 ± 1.036

136.6638

3.3362

2

(+)4

(−)8

(−)7

31 ± 0.69

37.86154

−6.86154

3

(−)2

(+)8

(−)7

139 ± 0.36

152.2008

−13.2008

4

(+)4

(+)16

(−)7

10 ± 0.58

3.150242

6.849758

5

(−)2

(−)4

(+)15

174.05 ± 0.23

195.4369

−21.3863

6

(+)4

(−)8

(+)15

120 ± 0.89

118.6143

1.3857

7

(−)2

(+)8

(+)15

211 ± 0.95

204.9636

6.0364

8

(+)4

(+)16

(+)15

65 ± 1.06

71.88248

−6.88248

9

(−2) 1

(0) 3

(0) 11

245 ± 0.25

236.2326

8.7674

10

(+2) 5

(0) 15

(0) 11

5 ± 0.68

6.088892

−1.08889

11

(0) 3

(−2) 3

(0) 11

128 ± 1.22

121.7481

6.2519

12

(0) 3

(+2) 15

(0) 11

109 ± 0.88

110.0048

−1.0048

13

(0) 3

(0) 9

(−2) 3

45 ± 1.30

43.90515

1.09485

14

(0) 3

(0) 9

(+2) 19

181 ± 1.66

174.4156

6.5844

15

(0) 3

(0) 9

(0) 11

116 ± 0.28

113.9783

2.0217

16

(0) 3

(0) 9

(0) 11

116 ± 0.28

113.9783

2.0217

17

(0) 3

(0) 9

(0) 11

116 ± 0.28

113.9783

2.0217

18

(0) 3

(0) 9

(0) 11

116 ± 0.28

113.9783

2.0217

19

(0) 3

(0) 9

(0) 11

116 ± 0.28

113.9783

2.0217

20

(0) 3

(0) 9

(0) 11

116 ± 0.28

113.9783

2.0217

  1. R-square, 0.98622; adjusted R-square, 0.972439. P-value: 2.69E-07