Table 3.
Colour results after 24 months of storage.
| Fortification Level | Storage Temperature | L* Mean (SD) | a* Mean (SD) | b* Mean (SD) | Y Mean (SD) | BI 1 Mean (SD) | CIE 2 ΔE2000 |
|---|---|---|---|---|---|---|---|
| 0 | 1 °C | 66.3 (0.5) | 11.5 (0.4) | 26.6 (0.4) | 35.7 (0.7) | 63.0 (1.8) | |
| 0 | 30 °C | 66.6 (0.6) | 11.3 (0.2) | 27.7 (0.4) | 36.1 (0.7) | 65.3 (2.2) | 0.7 |
| 0 | 40 °C | 66.4 (0.8) | 11.7 (0.5) | 29.3 (0.5) | 35.9 (1.1) | 70.0 (3.2) | 1.3 |
| 1 | 1 °C | 66.4 (0.4) | 11.5 (0.4) | 26.6 (0.4) | 35.9 (0.5) | 62.8 (1.4) a | |
| 1 | 30 °C | 67.0 (0.2) | 11.5 (0.3) | 28.0 (0.3) | 36.6 (0.3) | 65.7 (0.6) b | 0.9 |
| 1 | 40 °C | 65.6 (0.4) | 11.7 (0.1) | 28.8 (0.2) | 34.8 (0.5) | 69.7 (0.3) c | 1.2 |
| 2 | 1 °C | 66.7 (1.5) | 11.2 (0.2) | 26.4 (0.2) | 36.3 (2.0) | 61.9 (1.5) a | |
| 2 | 30 °C | 67.2 (0.4) | 11.1 (0.4) | 27.5 (0.4) | 36.9 (0.5) | 63.8 (1.7) a,b | 0.7 |
| 2 | 40 °C | 65.6 (0.2) | 11.9 (0.1) | 28.4 (0.3) | 34.8 (0.2) | 69.0 (0.7) c | 1.3 |
| 3 | 1 °C | 67.1 (0.3) | 10.7 (0.2) | 26.5 (0.2) | 36.8 (0.4) | 60.9 (0.7) a | 0.8 3 |
| 3 | 30 °C | 66.2 (0.1) | 11.5 (0.1) | 28.1 (0.3) | 35.6 (0.2) | 66.9 (0.3) b | 1.1 |
| 3 | 40 °C | 65.8 (1.0) | 11.3 (0.4) | 28.7 (0.3) | 35.0 (1.2) | 68.8 (1.8) c | 1.4 |
1 Browning Index (BI); at each fortification level results with different superscripted letters are significantly different (p < 0.05). 2 Unless otherwise indicated, at each fortification level the colour differences for 30 °C and 40 °C samples are relative to the 1 °C control sample. 3 Colour difference (CIE ΔE2000) has been calculated relative to the fortification level 0, 1 °C control sample.