Table 3.
Effect of edible chitosan/propolis coatings on the colour (chromaticity) of fig fruit stored for 12 days at 4 °C.
| CHROMATICITY (C*) | |||||
|---|---|---|---|---|---|
| Coatings | Storage Days | ||||
| 1 | 3 | 6 | 9 | 12 | |
| CS + PNPs | 8.3 ± 2.6 a | 6.4 ± 2.3 a | 4.5 ± 2.0 a | 4.7 ± 2.4 a | 3.7 ± 2.2 a |
| CS + CSNPs | 7.2 ± 2.6 a | 5.5 ± 1.5 a | 4.2 ± 1.2 a | 3.9 ± 1.8 ª | 3.7 ± 1.5 a |
| CS + P | 7.5 ± 3.5 a | 7.4 ± 2.5 a | 5.8 ± 2.3 a | 4.8 ± 1.7 ª | 3.9 ±1.3 a |
| CS + CSNPs + PNPs | 6.8 ± 2.8 a | 6.2 ± 2.9 a | 4.8 ± 2.6 a | 4.1 ± 2.4 ª | 3.4 ± 2.3 a |
| CS + PNPs + CSNPs + P | 7.7 ± 4.1 a | 5.5 ± 2.3 a | 4.1 ± 2.1 a | 2.9 ± 1.2 ª | 2.7 ± 1.8 a |
| CS + PNPs + P | 6.5 ± 3.0 a | 6.3 ± 3.1 ª | 4.7 ± 2.4 a | 4.0 ± 2.0 a | 3.2 ± 1.4 a |
| CS + CSNPs + P | 8.2 ± 5.0 a | 7.6 ± 4.2 a | 4.8 ± 2.3 a | 4.5 ± 2.7 a | 3.7 ± 2.1 a |
| CS | 6.7 ± 2.4 a | 6.9 ± 3.3 a | 4.8 ± 1.3 a | 4.2 ± 1.3 a | 3.3 ± 1.7 a |
| Control | 7.7 ± 3.7 a | 6.9 ± 3.7 a | 5.3 ± 3.1 a | 3.8 ± 2.7 a | 3.5 ± 2.1 a |
Means with similar letters are not significantly different among the evaluated treatments. CS (chitosan), P (propolis extract), CSNPs (chitosan nanoparticles), PNPs (propolis nanoparticles). ANOVA and Tukey test (p ≤ 0.05) were performed.