Table 2
Freezing point depression depends on the sugar contents and nucleation points of the agr icultural products
| Agricultural products | Sugar (g/L) | Molality1) (mol/kg) | Temperature (℃) |
| Depression2) | Freezing | Super-cooling |
| Garlic (southern-type) | 320 | 1.778 | 3.307 | -1.4±0.23) | -7.8±0.6 |
| Garlic (northern-type) | 350 | 1.944 | 3.617 | -1.6±0.2 | -7.7±0.8 |
| Leek | 31 | 0.172 | 0.320 | -0.5±0.1 | -3.7±0.1 |
| Cucumber | 45 | 0.211 | 0.465 | -0.5±0.1 | -3.3±0.2 |
| Hotpepper | 51 | 0.283 | 0.527 | -0.7±0.4 | -4.9±0.6 |
| Grape | 153 | 1.017 | 1.891 | -1.6±0.1 | -5.7±0.8 |
| Oriental melon | 145 | 0.806 | 1.498 | -1.6±0.3 | -4.6±1.6 |
| Netted melon | 125 | 0.694 | 1.292 | -1.3±0.1 | -2.8±0.2 |
| Peach (white) | 132 | 0.733 | 1.364 | -0.8±0.1 | -3.3±0.8 |
| Peach (yellow) | 141 | 0.783 | 1.457 | -0.8±0.1 | -3.3±0.1 |
| Cherry tomato | 49 | 0.272 | 0.506 | -0.3±0.1 | -5.9±0.2 |
| Plum | 139 | 0.772 | 1.436 | -1.1±0.2 | -4.2±1.9 |
| Daikon | 43.2 | 0.239 | 0.443 | -0.3±0.1 | -0.8±0.3 |
| Sweet persimon | 137.5 | 0.760 | 1.413 | -1.7±0.3 | -4.7±0.2 |
| Apple | 158.2 | 0.877 | 1.629 | -1.5±0.2 | -3.2±0.1 |
| Sweet potato (chestnuts) | 69 | 0.381 | 0.709 | -1.5±0.4 | -3.7±0.5 |
| Sweet potato (pumpkin) | 72.2 | 0.401 | 0.745 | -1.6±0.3 | -4.4±0.8 |
| Mandarin (citrus) | 97 | 0.538 | 1.000 | -0.8±0.2 | -4.7±0.2 |
| Pear | 160 | 0.888 | 1.650 | -1.5±0.2 | -4.2±0.3 |
| Strawberry | 95 | 0.527 | 0.980 | -0.9±0.2 | -3.4±0.1 |
Molality was obtained from the molecular formula of fructose (FW: 180.16).
The molal freezing point depression constant value for water is 1.858℃/m.
The values represent mean±SD for three experiments.