| AAPH | 2,2′-Azobis (2-methylpropionamidine) dihydrochloride radical |
| AUC | area under the curve |
| DPPH | 1,1-diphenyl-2-picrylhydrazine |
| GA | Galic acid |
| OC | Oregano from Colotlan |
| OH | Oregano from Huejuquilla |
| OM | Oregano from Mezquitic |
| ORAC | Oxygen Radical Absorbance Capacity |