Table 2.
Polyphenol contents of rooibos and their MGO-trapping and antiglycative activities.
| Concentration (μM) | MGO-trapping (%) | BSA-glucose (%) | |
|---|---|---|---|
| Aspalathin | 95.51 ± 1.95 | 38.15 ± 1.24b | 35.07 ± 6.72 cd |
| Nothofagin | 10.49 ± 0.29 | 32.47 ± 2.34 cd | 33.76 ± 0.45d |
| Vitexin | 39.03 ± 3.86 | 35.75 ± 1.02bd | 42.03 ± 0.73bc |
| Isovitexin | 45.56 ± 1.98 | 33.66 ± 0.74c | 45.72 ± 1.67ab |
| Orientin | 88.47 ± 6.15 | 31.71 ± 1.08c | 47.78 ± 0.72ab |
| Isoorientin | 137.97 ± 11.14 | 32.30 ± 0.68c | 46.12 ± 1.88ab |
| Isoquercitrin | 18.57 ± 1.49 | 45.74 ± 1.92a | 52.09 ± 0.35a |
| Rutin | 11.65 ± 0.87 | 46.98 ± 0.99a | 49.33 ± 0.81ab |
Data are expressed as means ± SD from triplicates. Different letters in the same column represent statistical differences among polyphenol compounds (p < 0.05).