Table 6.
TSS, titratable acidity (TA) and vitamin C content of ‘Afourer’ mandarins during storage at 20, 10 and 5 °C.
| Quality Parameter/Ethylene Level (µL L−1) | Storage Temperature/Storage Time (Weeks) | Mean | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20 °C | 10 °C | 5 °C | |||||||||||
| 1 | 2 | 3 | 4 Weeks | 2 | 4 | 6 | 8 Weeks | 2 | 4 | 6 | 8 Weeks | ||
| TSS (%) | |||||||||||||
| Time-0 | 10.2 | ||||||||||||
| <0.001 | 9.8 | 10.1 | 10.2 | 10.5 | 9.5 | 10.1 | 9.8 | 9.6 | 8.2 | 9.4 | 9.5 | 9.6 | 9.7 a |
| 0.01 | 9.9 | 9.0 | 9.8 | 10.1 | 9.7 | 9.9 | 9.6 | 9.3 | 8.0 | 9.6 | 9.5 | 9.8 | 9.5 b |
| 0.1 | 10.0 | 8.8 | 9.3 | 9.7 | 9.7 | 9.6 | 9.4 | 9.2 | 9.0 | 9.8 | 9.7 | 10.0 | 9.5 b |
| 1 | 9.6 | 8.5 | 9.1 | 9.6 | 9.2 | 9.6 | 9.2 | 8.9 | 9.5 | 9.9 | 10.1 | 10.2 | 9.4 b |
| Mean | 9.6 a | 9.5 bc | 9.4 c | ||||||||||
| LSD | 0.2 | 0.2 | |||||||||||
| TA (%citric acid) | |||||||||||||
| Time-0 | 0.6 | ||||||||||||
| <0.001 | 0.56 | 0.55 | 0.53 | 0.52 | 0.56 | 0.54 | 0.51 | 0.47 | 0.55 | 0.52 | 0.49 | 0.45 | 0.52 a |
| 0.01 | 0.55 | 0.53 | 0.51 | 0.50 | 0.54 | 0.51 | 0.48 | 0.45 | 0.54 | 0.47 | 0.46 | 0.43 | 0.49 b |
| 0.1 | 0.52 | 0.50 | 0.47 | 0.45 | 0.51 | 0.49 | 0.44 | 0.41 | 0.53 | 0.45 | 0.43 | 0.40 | 0.47 c |
| 1 | 0.53 | 0.51 | 0.49 | 0.47 | 0.49 | 0.47 | 0.42 | 0.38 | 0.50 | 0.44 | 0.42 | 0.37 | 0.46 c |
| Mean | 0.51 a | 0.48 b | 0.47 b | ||||||||||
| LSD | 0.02 | 0.02 | |||||||||||
| Vitamin C (mg 100 mL−1) | |||||||||||||
| Time-0 | 7.1 | ||||||||||||
| <0.001 | 7.1 | 6.7 | 6.5 | 6.3 | 8.9 | 10.4 | 6.7 | 8.0 | 10.2 | 9.1 | 8.0 | 7.7 | 8.0 a |
| 0.01 | 6.6 | 6.3 | 6.0 | 5.7 | 7.3 | 9.7 | 6.4 | 6.9 | 8.6 | 7.8 | 7.4 | 7.2 | 7.2 b |
| 0.1 | 6.4 | 5.8 | 5.4 | 5.3 | 7.0 | 9.6 | 6.1 | 6.6 | 8.1 | 7.4 | 7.1 | 6.9 | 6.8 c |
| 1 | 5.8 | 5.6 | 5.4 | 4.9 | 6.9 | 6.2 | 5.4 | 5.8 | 7.0 | 6.6 | 5.5 | 6.3 | 6.0 d |
| Mean | 6.0 a | 7.4 b | 7.6 b | ||||||||||
| LSD | 0.4 | 0.4 | |||||||||||
Values are the means of 4 replicates. Means with the same superscript letter across each column and row are not significantly different at p ≤ 0.05. TSS: total soluble solids; TA: titratable acidity.