Table 5.
Change in inhibition effect (%)1) of grape seed tea extracted from grape seeds which were roasted at different condition.
Roasting Temp. (°C) | Roasting time (min) |
10 | 20 | 30 | 40 | 50 | 60 |
150 | 74.9±1.4c2) | 78.0±1.5a | 80.1±1.8a | 81.2±1.8a | 81.2±1.7a | 78.4±1.6a |
160 | 79.2±1.6a | 79.2±1.7a | 77.0±1.2b | 77.2±1.3b | 78.8±1.8ab | 72.5±1.0b |
170 | 76.0±1.5b | 78.2±1.5a | 79.9±1.8ab | 78.4±1.6a | 77.6±1.8b | 76.4±1.2a |
180 | 79.8±1.7a | 78.1±1.6a | 77.0±1.4ab | 77.0±1.4b | 75.2±1.2b | 73.1±1.0b |
190 | 75.8±0.9bc | 77.4±1.3a | 80.7±1.6a | 79.1±1.5a | 78.5±1.7ab | 77.2±1.3a |
Inhibition effect of grape seed tea extracted from unroasted grape seed was 66.9±0.5 %.
Means in the same column bearing different superscripts are significantly different (p < 0.05).