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Table 3 Experimental design generated with Design Expert 9.0: the predicted and actual values of production of exopolymer by Halomonas sp. S19

From: A statistical approach on optimization of exopolymeric substance production by Halomonas sp. S19 and its emulsification activity

Run

A: sea salt (%)

B: pH

C: Temp °C

Predicted value exopolymer (mg)

Actual value exopolymer (mg)

1

5.0

7.0

35

285.00

285

2

5.0

7.5

45

285.93

280

3

2.5

7.0

45

237.66

240

4

5.0

7.0

35

285.00

285

5

5.0

7.0

35

285.00

285

6

7.5

6.5

35

280.99

278

7

7.5

7.0

25

287.31

285

8

5.0

7.0

35

285.00

285

9

5.0

6.5

25

260.30

265

10

2.5

7.0

25

234.19

232

11

7.5

7.0

45

302.84

305

12

5.0

6.5

45

258.57

260

13

5.0

7.0

35

285.00

285

14

2.5

7.5

35

239.01

242

15

5.0

7.5

25

265.20

265

16

7.5

7.5

35

316.86

320

17

2.5

6.5

35

238.14

235