Table 1.
Polyphenol index (PI) and antioxidant capacity (ΔABTS) values for beers and wines using PEDOT-Tyr/SNGC biosensor and spectrophotometric 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid (ABTS) assay. RSD = relative standard deviation.
| Samples | PI (µM) Referred as CA |
RSD (%) | ΔABTS | RSD (%) |
|---|---|---|---|---|
| Mahou (lager) | 55.9 | 4.7 | 0.914 | 0.67 |
| Steinburg (lager) | 39.0 | 3.6 | 0.527 | 0.82 |
| Carlsberg (lager) | 45.6 | 6.00 | 1.065 | 0.81 |
| San Miguel (lager) | 33.9 | 11.5 | 0.890 | 1.15 |
| Guinnes (stout) | 68.6 | 3.9 | 1.406 | 0.61 |
| Cusqueña (stout) | 97.9 | 1.6 | 1.711 | 0.8 |
| Negra (stout) | 104.4 | 2.7 | 1.332 | 1.22 |
| Mahou (non-alcoholic) | 45.2 | 4.1 | 0.697 | 1.13 |
| Buckler 0.0 (non-alcoholic) | 54.3 | 6.8 | 0.738 | 0.13 |
| Cariñena Reserva (red wine) | 1186.3 | 1.3 | 1.943 | 0.95 |
| Cariñena Crianza (red wine) | 936.0 | 0.2 | 1.764 | 1.2 |
| Rioja Comportillo Reserva (red wine) | 1181.5 | 3.8 | 1.625 | 0.55 |
| Tierra blanca (white wine) | 130.0 | 0.7 | 0.088 | 8.71 |