Table 1.
Experimental TPhC values obtained from the Box–Behnken design matrix.
| Extract No. | Independent Variables | Experimental TPhC (mg PGE/g DWalgae) |
||
|---|---|---|---|---|
| X 1 | X 2 | X 3 | ||
| 1 | 40 | 125 | 3 | 1.17 ± 0.39 |
| 2 | 60 | 100 | 3 | 2.58 ± 0.36 |
| 3 | 80 | 125 | 3 | 1.61 ± 0.20 |
| 4 | 60 | 75 | 5 | 3.09 ± 0.34 |
| 5 | 80 | 100 | 5 | 1.99 ± 0.35 |
| 6 | 60 | 125 | 1 | 2.37 ± 0.25 |
| 7 | 80 | 75 | 3 | 2.16 ± 0.54 |
| 8 | 60 | 100 | 3 | 2.58 ± 0.36 |
| 9 | 40 | 100 | 1 | 2.60 ± 0.23 |
| 10 | 40 | 100 | 5 | 1.95 ± 0.37 |
| 11 | 60 | 125 | 5 | 0.85 ± 0.22 |
| 12 | 60 | 75 | 1 | 2.52 ± 0.21 |
| 13 | 40 | 75 | 3 | 2.42 ± 0.24 |
| 14 | 60 | 100 | 3 | 2.58 ± 0.36 |
| 15 | 80 | 100 | 1 | 2.35 ± 0.33 |
X1—ethanol concentration (%); X2—temperature (°C); X3—time (min); TPhC―total phlorotannins content. All values are expressed as mean ± SD of mg of phloroglucinol equivalents/g of dried algae (mg PGE/ g DWalgae).