| ANOVA | analysis of variance |
| ASE | accelerated solvent extraction |
| BBD | Box-Behnken design |
| DM | dry mass/dry matter |
| F (kg/h−1) | solvent flow rate |
| GAE | gallic acid equivalent |
| LOF | lack of fit |
| m (g) | mass of the extract |
| M (kg) | mass of the feedstock |
| MAE | microwave solvent extraction |
| MSPD | matrix solid phase dispersion |
| P (MPa) | pressure |
| R2 | coefficient of determination |
| RU | rutin equivalent |
| RSM | response surface methodology |
| scCO2 | supercritical carbon dioxide |
| SE | Soxhlet extraction |
| SFC | supercritical fluid chromatography |
| SFE | supercritical fluid extraction |
| SF | supercritical fluid |
| SFE-scCO2 | supercritical fluid extraction - supercritical carbon dioxide |
| SPE | solid phase extraction |
| T (K) | temperature |
| TPC | total phenolics content |
| USAE | ultrasound assisted extraction |