Table 2.
Effect of edible chitosan/propolis coatings on total soluble solids (TSS) concentration of fig fruit stored for 12 days at 4 °C.
| TSS (°BRIX) | |||||
|---|---|---|---|---|---|
| Coatings | Storage Days | ||||
| 1 | 3 | 6 | 9 | 12 | |
| CS + PNPs | 16.2 ± 1.9 ab | 20.6 ± 3.8 abc | 20.8 ± 1.8 a | 23.0 ± 3.7 ab | 22.2 ± 4.0 a |
| CS + CSNPs | 14.8 ± 2.9 a* | 20.8 ± 3.6 abc | 18.2 ± 2.4 a | 20.6 ± 3.8 ab | 21.2 ± 2.6 a |
| CS + P | 17.4 ± 3.4 ab | 19.8 ± 2.8 abc | 16.4 ± 5.0 a | 26.6 ± 0.6 b | 24.0 ± 3.9 a |
| CS + CSNPs + PNPs | 18.2 ± 2.9 ab | 17.4 ± 2.9 ab | 15.8 ± 2.2 a | 19.8 ± 3.4 ab | 24.0 ± 3.7 a |
| CS + PNPs + CSNPs + P | 16.6 ± 2.7 ab | 17.6 ± 4.5 ab | 19.2 ± 3.4 a | 22.4 ± 4.7 ab | 22.8 ± 5.5 a |
| CS + PNPs + P | 21.2 ± 2.4 b | 23.0 ± 3.4 abc | 21.4 ± 2.6 a | 20.4 ± 3.5 ab | 25.6 ± 2.1 a |
| CS + CSNPs + P | 21.2 ± 2.8 b | 24.8 ± 2.6 c | 19.6 ± 4.5 a | 21.8 ± 3.7 ab | 22.6 ± 2.8 a |
| CS | 21 ± 3.6 b | 23.6 ± 2.5 bc | 19.4 ± 2.7 a | 18.4 ± 2.88 a | 20.0 ± 4.5 a |
| Control | 18 ± 1.9 ab | 16.8 ± 2.8 a | 18.8 ± 2.4 a | 23.0 ± 2.1 ab | 22.0 ± 5.7 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.