3. Initial Phenolic Compounds’ Extraction Rate and Fitted Parameters on the Kinetics Obtained under Different Extraction Temperatures (50–70 °C).
| extraction temperature (°C) | 50 | 60 | 70 |
|---|---|---|---|
| phenolic compounds’ extraction rate at the initial 15 min (mg GAE L–1 min–1) | 24.1 | 25.1 | 34.3 |
| pseudo-first-order | |||
| C eq (mg GAE L–1) | 890 | 931 | 1039 |
| k 1 (min–1) | 3.31 × 10–2 | 3.71 × 10–2 | 4.56 × 10–2 |
| MRE | 0.035 | 0.038 | 0.12 |
| average MRE | 0.063 | ||
| pseudo-second-order | |||
| C eq (mg GAE L–1) | 1068 | 1103 | 1047 |
| k 2 (L mg–1 GAE min–1) | 2.97 × 10–5 | 3.18 × 10–5 | 7.04 × 10–5 |
| MRE | 0.058 | 0.051 | 0.070 |
| average MRE | 0.060 | ||
| Peleg | |||
| k 3 (min L mg–1 GAE) | 2.95 × 10–2 | 2.58 × 10–2 | 1.66 × 10–2 |
| k 4 (L mg–1 GAE) | 9.37 × 10–4 | 9.10 × 10–4 | 8.36 × 10–4 |
| MRE | 0.058 | 0.051 | 0.066 |
| average MRE | 0.058 | ||