Table 1.
Polyphenol content (total phenolics (TP), total flavonoids (TF) and total flavanols (TFLA)), antioxidant activity (DPPH, ABTS and FRAP) and antidiabetic activity (α-glucosidase and α-amylase inhibitory activity) in Matcha and Sencha pure green tea
| TP (mg GAE/100 mL) | TF (mg CE/100 mL) | TFLA (mg CE/100 mL) | α-glucosidase (% inhibition) | |
|---|---|---|---|---|
| Matcha | 129.02 ± 13.20a | 22.95 ± 2.08a | 53.6 ± 52.07a | 99.67 ± 0.88a |
| Sencha | 66.76 ± 5.66 b | 15.29 ± 1.06b | 51.19 ± 5.31a | 102.72 ± 8.83a |
| DPPH (% inhibition) | ABTS (% inhibition) | FRAP (% reduction) | α-amylase (% inhibition) | |
|---|---|---|---|---|
| Matcha | 79.90 ± 0.68a | 78.98 ± 1.16a | 94.06 ± 0.17a | ND |
| Sencha | 81.59 ± 0.12a | 72.43 ± 2.67b | 93.92 ± 0.09a | ND |
| Trolox | 81.95 ± 0.11 | 81.37 ± 1.06 | 97.21 ± 0.24 |
Values represent mean ± standard deviation of 3 replicates. Different letters indicate significant difference at p ≤ 0.05.
GAE-gallic acid equivalent, CE-catechin equivalent, ND-non detected