Table 1.
Response surface central composite design and experimental data and predicted values for extraction yield of phenols in ATL.
| Run | Factors | Total Phenols (mg/100 g) | DPPH (μmol/100 g) | DPPH Activity/Total Phenols (μmol/mg) | |||
|---|---|---|---|---|---|---|---|
| X1 | X2 | X3 | X4 | Experimental (Predicted) Values | |||
| C (%) | R (g/L) | P (W) | T (°C) | ||||
| 1 | 70(0) | 20(0) | 240(0) | 50(0) | 7467.83 (7449.86) | 71,695.05 (72,589.38) | 9.60 |
| 2 | 60(−1) | 15(−1) | 270(1) | 60(1) | 7591.30 (7534.35) | 70,380.34 (70,880.44) | 9.27 |
| 3 | 70(0) | 20(0) | 240(0) | 50(0) | 7417.39 (7449.86) | 73,356.78 (72,589.38) | 9.89 |
| 4 | 80(1) | 25(1) | 270(1) | 40(−1) | 6622.83 (6632.18) | 57,161.41 (56,161.13) | 8.63 |
| 5 | 80(1) | 25(1) | 210(−1) | 60(1) | 6840.22 (6732.65) | 51,733.24 (52,828.09) | 7.56 |
| 6 | 80(1) | 15(−1) | 270(1) | 60(1) | 7005.87 (6927.40) | 66,300.47 (65,584.34) | 9.46 |
| 7 | 60((−1) | 15(−1) | 210(−1) | 40(−1) | 7281.30 (7204.18) | 64,060.73 (63,443.39) | 8.80 |
| 8 | 60(−1) | 25(1) | 270(1) | 40(−1) | 7180.98 (7062.72) | 60,133.24 (61,057.29) | 8.37 |
| 9 | 70(0) | 20(0) | 240(0) | 70(2) | 7384.35 (7425.71) | 63,223.73 (62,238.86) | 8.56 |
| 10 | 60(−1) | 15(−1) | 270(1) | 40(−1) | 7158.91 (7192.11) | 60,282.07 (59,038.22) | 8.42 |
| 11 | 60(−1) | 25(1) | 210(−1) | 40(−1) | 7168.48 (7172.58) | 68,041.95 (68,609.08) | 9.49 |
| 12 | 70(0) | 20(0) | 240(0) | 30(−2) | 7037.83 (7125.72) | 56,420.30 (57,524.26) | 8.02 |
| 13 | 70(0) | 20(0) | 240(0) | 50(0) | 7256.52 (7449.86) | 70,844.41 (72,589.38) | 9.76 |
| 14 | 50(−2) | 20(0) | 240(0) | 50(0) | 6776.52 (6846.72) | 57,567.32 (56,833.36) | 8.50 |
| 15 | 80(1) | 15(−1) | 210(−1) | 40(−1) | 6609.78 (6505.13) | 58,025.57 (56,190.23) | 8.78 |
| 16 | 80(1) | 25(1) | 210(−1) | 40(−1) | 6772.83 (6774.90) | 60,425.89 (59,955.71) | 8.92 |
| 17 | 90(2) | 20(0) | 240(0) | 50(0) | 5783.04 (5842.09) | 42,030.84 (42,883.89) | 7.27 |
| 18 | 70(0) | 10(−2) | 240(0) | 50(0) | 7026.96 (7141.37) | 66,619.14 (67,862.93) | 9.48 |
| 19 | 70(0) | 20(0) | 300(2) | 50(0) | 7106.09 (7147.63) | 69,835.50 (68,702.84) | 9.83 |
| 20 | 60(−1) | 25(1) | 270(1) | 60(1) | 7148.64 (7178.92) | 62,292.05 (63,978.39) | 8.71 |
| 21 | 80(1) | 15(−1) | 210(−1) | 60(1) | 6625.54 (6688.92) | 58,877.87 (57,983.73) | 8.89 |
| 22 | 70(0) | 20(0) | 180(−2) | 50(0) | 6931.30 (7019.01) | 67,402.26 (68,654.02) | 9.72 |
| 23 | 70(0) | 20(0) | 240(0) | 50(0) | 7519.13 (7449.86) | 72,961.25 (72,589.38) | 9.70 |
| 24 | 70(0) | 20(0) | 240(0) | 50(0) | 7587.83 (7449.86) | 72,829.01 (72,589.38) | 9.60 |
| 25 | 70(0) | 20(0) | 240(0) | 50(0) | 7450.43 (7449.86) | 73,849.78 (72,589.38) | 9.91 |
| 26 | 80(1) | 25(1) | 270(1) | 60(1) | 6851.09 (6873.33) | 56,634.84 (57,282.08) | 8.27 |
| 27 | 70(0) | 30(2) | 240(0) | 50(0) | 7040.87 (7055.71) | 65,851.05 (64,726.36) | 9.35 |
| 28 | 80(1) | 15(−1) | 270(1) | 40(−1) | 6513.91 (6460.19) | 54,193.49 (55,542.27) | 8.32 |
| 29 | 60(−1) | 25(1) | 210(−1) | 60(1) | 7006.52 (7005.36) | 64,600.48 (63,281.61) | 9.22 |
| 30 | 60(−1) | 15(−1) | 210(−1) | 60(1) | 7346.74 (7263.01) | 66,185.78 (67,037.04) | 9.01 |