Table 3.
Effect on color coordinates, antioxidant capacity, and total polyphenol content of pomegranate jellies as affected by formulation, gelatin percentage, and type of sweetener.
| Samples | L* | a* | b* | ABTS+ | DPPH | FRAP | TPC |
|---|---|---|---|---|---|---|---|
| (mg/100 g fw) | |||||||
| PJH-20 | 23.9bc | 0.65c | 3.15b | 2.51c | 13.8ab | 3.30b | 74.1d |
| PJS-20 | 25.7b | 0.70c | 1.90c | 3.34b | 12.1c | 4.27a | 124bc |
| PJAPH-20 | 29.1a | 0.13d | 3.70b | 2.99bc | 10.8d | 2.44bc | 107c |
| PJAPS-20 | 31.1a | 0.93bc | 3.76b | 3.09bc | 12.9bc | 3.21b | 139ab |
| PJH-20c | 19.7d | 0.85bc | 1.72cd | 2.45c | 13.9ab | 1.18d | 133abc |
| PJS-20c | 23.2c | 1.94a | 0.98d | 3.68b | 13.6ab | 3.31b | 115bc |
| PJAPH-20c | 29.6a | 1.06b | 6.24a | 4.83a | 14.4a | 2.81bc | 107c |
| PJAPS-20c | 28.7a | 0.17d | 5.82a | 2.46c | 12.5c | 1.17d | 160a |
| Multifactor ANOVA † | |||||||
| Formulation (F) | *** | *** | *** | NS | NS | NS | NS |
| Citric acid (C) | *** | *** | *** | NS | *** | *** | * |
| Sweetener (Sw) | *** | *** | ** | NS | NS | NS | * |
| F × C | * | NS | *** | NS | NS | NS | NS |
| F × Sw | * | NS | *** | *** | NS | *** | NS |
| C × Sw | NS | NS | NS | *** | NS | NS | NS |
| F × C × Sw | *** | *** | * | * | *** | ** | *** |
| Tukey Test ‡ | |||||||
| F | |||||||
| PJA γ | 23.1b | 1.05a | 1.95b | 3.07 | 13.3 | 3.02 | 112 |
| PJAP | 29.6a | 0.58b | 4.89a | 3.32 | 12.6 | 2.41 | 128 |
| C | |||||||
| 0% | 27.4a | 0.61b | 3.14b | 3.03 | 12.4b | 3.31a | 111b |
| 1% | 25.3b | 1.02a | 3.70a | 3.35 | 13.6a | 2.11b | 129a |
| Sw | |||||||
| H | 25.6b | 0.69b | 3.13b | 3.17 | 13.2 | 2.43 | 105b |
| S | 27.2a | 0.94a | 3.72a | 3.22 | 12.8 | 2.99 | 134a |
Note:† NS = not significant at p < 0.05; *, **, and ***, significant at p < 0.05, 0.01, and 0.001, respectively. ‡ Values (mean of 3 replications) followed by the same letter, within the same column, were not significantly different (p < 0.05), according to Tukey’s least significant difference test. γ PJ, pomegranate juice; S, sucrose; H, honey; AP, apple purée.