Table 1.
Real values of the independent variables and observed responses to the first factorial design.
| Independent variables (real values) |
Responses |
|||
|---|---|---|---|---|
| Runa | Extraction time (min) | Propolis-to-solvent ratio (w/v)* | YTPC (mg GAE.g−1)b | YTAA (µmol TEAC.g−1)c |
| 1 | 11 | 1:13 | 334.2 ± 13.2 | 2452.0 ± 7.0 |
| 2 | 39 | 1:13 | 351.9 ± 15.6 | 3123.1 ± 12.2 |
| 3 | 11 | 1:27 | 405.3 ± 17.7 | 3077.6 ± 12.5 |
| 4 | 39 | 1:27 | 481.8 ± 17.5 | 3326.4 ± 13.7 |
| 5 | 5 | 1:20 | 344.8 ± 13.1 | 2210.2 ± 7.3 |
| 6 | 45 | 1:20 | 316.4 ± 9.3 | 3524.0 ± 18.8 |
| 7 | 25 | 1:10 | 413.3 ± 9.6 | 3064.5 ± 15.6 |
| 8 | 25 | 1:30 | 533.9 ± 13.1 | 3253.8 ± 17.9 |
| 9 | 25 | 1:20 | 450.9 ± 15.5 | 3245.3 ± 14.8 |
| 10 | 25 | 1:20 | 464.7 ± 17.6 | 3214.7 ± 15.0 |
| 11 | 25 | 1:20 | 494.5 ± 13.2 | 3255.1 ± 19.6 |
| 12 | 25 | 1:20 | 411.4 ± 12.5 | 3272.9 ± 16.1 |
The results were expressed as mean ± standard deviation.
a
Tests performed in random order.
b
Total Phenolic Content.
c
Total Antioxidant Capacity
*
All assays were performed with a total volume of 30 mL (Degree of hydration of the extractive solution: 65% ethanol).