Table 1.
Percentage retention of catechins and caffeine in MGTP (Matcha green tea powder)-enriched shortbread biscuits after baking as a proportion of initial content in the dough.
| Compound | 2 g MGTP (%) | 4 g MGTP (%) | 6 g MGTP (%) |
|---|---|---|---|
| (−)-epigallocatechin (EGC) | 70.9 ± 9.5 | 81.5 ± 2.5 | 68.9 ± 1.6 |
| (−)-epicatechin (EC) | 72.6 ± 4.5 | 85.7 ± 3.5 | 80.2 ± 1.7 |
| (−)-epigallocatechin gallate (EGCG) | 84.9 ± 4.0 | 89.7 ± 2.1 | 81.8 ± 1.4 |
| (+)-gallocatechin gallate (GCG) | 133.0 ± 7.3 | 128.6 ± 11.0 | 140.3 ± 8.6 |
| (−)-epicatechin gallate (ECG) | 92.2 ± 3.9 | 94.3 ± 2.4 | 89.1 ± 1.2 |
| Total catechins | 82.4 ± 5.7 | 88.9 ± 2.5 | 81.1 ± 1.4 |
| Caffeine | 81.9 ± 5.0 | 76.3 ± 3.4 | 76.4 ± 1.1 |