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. 2018 Jan 5;5:116. doi: 10.3389/fchem.2017.00116

Table 1.

Design matrix and results for optimization of the extraction of compounds phenolic.

Run Variables Total Phenolic*(mg GAE/100 g) Total Phenolic Predicted
Acetone (%) Water (%) Ethanol (%)
MIXTURE DESIGN
1 100.0 (1) 0.0 (0) 0.0 (0) 119.81 ± 3.80 120.41
2 0.0 (0) 100.0 (1) 0.0 (0) 155.77 ± 4.90 153.27
3 0.0 (0) 0.0 (0) 100.0 (1) 124.41 ± 6.90 125.40
4 50.0 (½) 50.0 (½) 0.0 (0) 170.32 ± 9.30 170.77
5 50.0 (½) 0.0 (0) 50.0 (½) 124.60 ± 4.20 128.57
6 0.0 (0) 50.0 (½) 50.0 (½) 168.35 ± 10.4 169.22
7 66.7 (2/3) 16.7 (1/6) 16.7 (1/6) 150.90 ± 10.3 147.63
8 16.7 (1/6) 66.7 (2/3) 16.7 (1/6) 166.10 ± 14.70 172.13
9 16.7 (1/6) 16.7 (1/6) 66.7 (2/3) 153.33 ± 2.00 148.79
10 (CP) 33.3 (1/3) 33.3 (1/3) 33.3 (1/3) 171.26 ± 13.6 163.91
11(CP) 33.3 (1/3) 33.3 (1/3) 33.3 (1/3) 155.96 ± 19.89 163.91
12 (CP) 33.3 (1/3) 33.3 (1/3) 33.3 (1/3) 167.14 ± 14.50 163.91
Run Variables Total Phenolic*(mg GAE/100 g) Total Phenolic Predicted
Time (min) Temperature (°C) Agitation speed (rpm)
DOEHLERT DESIGN
1 0 (30.0) +1.68 (110.0) 0 (150) 111.37 ± 15.45 138.67
2 −1 (20.0) +1 (90.0) −1 (50) 173.25 ± 24.17 174.33
3 − (20.0) +1 (90.0) +1 (250) 130, 02 ± 44.78 144.31
4 +1 (40.0) +1 (90.0) −1 (50) 230.73 ± 51.52 281.00
5 +1 (40.0) +1 (90.0) +1 (250) 294.14 ± 45.28 183.20
6 −1.68 (10.0) 0 (60.0) 0 (150) 164.77 ± 6.43 150.91
7 (CP) 0 (30.0) 0 (60.0) 0 (150) 229.56 ± 29.07 261.36
8 (CP) 0 (30.0) 0 (60.0) 0 (150) 268.80 ± 37.90 261.36
9 (CP) 0 (30.0) 0 (60.0) 0 (150) 286.17 ± 76.16 261.36
10 (1.68) 50.0 0 (60.0) 0 (150) 215.13 ± 38.58 228.71
11 −1 (20.0) −1 (30.0) −1 (50) 321.61 ± 48.17 269.73
12 −1 (20.0) −1 (30.0) +1 (250) 107.47 ± 53.43 171.94
13 +1 (40.0) −1 (30.0) −1 (50) 307.03 ± 53.08 308.63
14 +1 (40.0) −1 (30.0) +1 (250) 178.68 ± 41.73 210.84
15 0 (30.0) −1.68 (10.0) 0 (150) 212.42 ± 47.78 184.72

CP, Central Point;

*

Mean ± Standard Deviation.