Table 6. Changes in the color of grapes during the storage of phytoncide treatment derived from pine bark
Storage period (day) | Control | Sulfur dioxide Pad | Phytoncide pad 1 | Phytoncide pad 2 |
L | 0 | 21.63±0.24c1) | 24.30±0.01e | 24.20±3.08c | 22.07±0.05c |
3 | 25.35±1.21b | 25.48±0.51d | 26.60±1.35b | 26.30±2.54b |
6 | 26.60±0.22b | 28.10±0.22c | 27.82±0.11ab | 26.83±0.39b |
9 | 27.33±0.34a | 29.83±0.20b | 29.03±0.88ab | 27.75±3.12ab |
12 | 28.15±1.34a | 31.67±0.31a | 30.05±0.22a | 30.50±0.07a |
a | 0 | 0.40±0.38b | 0.45±0.05d | 0.17±0.05d | 0.30±0.07c |
3 | 0.48±0.36b | 3.25±0.05c | 1.88±0.51c | 0.54±0.25c |
6 | 0.67±0.25b | 4.73±0.17b | 2.73±0.31b | 0.83±0.18b |
9 | 0.73±0.09b | 7.52±1.21a | 3.18±0.20ab | 0.87±0.05b |
12 | 3.33±0.12a | 8.82±0.13a | 3.38±0.04a | 2.23±0.09a |
b | 0 | -1.77±0.09b | -2.47±0.05c | -1.73±0.05d | -0.73±0.05a |
3 | -1.36±0.05b | -1.78±0.05bc | -0.30±0.12c | -1.00±0.34b |
6 | -0.76±0.15a | -0.52±0.04ab | 0.65±0.21b | -1.23±0.04b |
9 | -0.75±0.17a | -0.50±0.08ab | 0.83±0.04b | -1.35±0.05c |
12 | -0.70±0.12a | 0.23±0.05a | 1.18±0.08a | -1.42±0.47c |
1)a-bMeans within column with different superscripts are significantly different (p<0.05).