Research Article
Optimization of Bioactive Compound Extraction from Rose Myrtle Fruit (Rhodomyrtus tomentosa, (W.Ait), Myrtaceae) as the Antioxidant Source
Table 2
Matrix of factor and level in optimization of rose myrtle fruit extraction using central composite design.
| Coded factor value | Actual factor value | Total phenolic response (mg GAE/g) | Antioxidant response (IC50) µg/ml | Temperature of extraction (°C) | Time of extraction (minute) | (X1) | (X2) |
| 0 | 0 | 80 | 90 | 74.151 | 1.02 | −1 | −1 | 70 | 60 | 49.845 | 1.872 | −1 | +1 | 70 | 120 | 57.726 | 1.57 | 0 | 0 | 80 | 90 | 81.158 | 1.034 | −1.41 | 0 | 65.9 | 90 | 36.629 | 1.964 | 0 | −1.41 | 80 | 47.57 | 57.538 | 1.908 | +1 | +1 | 90 | 120 | 57.377 | 2.059 | 0 | +1.41 | 80 | 132.4 | 50.879 | 2.054 | 0 | 0 | 80 | 90 | 78.764 | 1.031 | 0 | 0 | 80 | 90 | 69.087 | 1.028 | 0 | 0 | 80 | 90 | 65.367 | 1.03 | +1 | −1 | 90 | 60 | 63.339 | 1.75 | +1.41 | +1 | 94.14 | 90 | 42.733 | 2.0612 |
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