Table 3.
Commission Internationale de I’Eclairage color parameters of pointed gourd up to acceptance level under different postharvest treatment and packaging conditions.
| Treatment | CIE lightness coordinate (L*) | a* | b* | Hue value (h*) | Chroma (C*) | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| LT (4°C) | RT (30°C) | LT (4°C) | RT (30°C) | LT (4°C) | RT (30°C) | LT (4°C) | RT (30°C) | LT (4°C) | RT (30°C) | |
| P1C1 | 39.1 ± 0.4f–i | 74.1 ± 4.5 | -7.2 ± 0.0a–d | -7.6 ± 0.1ab | 17.6 ± 1.5g | 20.6 ± 0.2h | 19.4 ± 1.2ij | 33.9 ± 2.1l | 69.8 ± 0.2g | 21.9 ± 0.1i |
| P1C2 | 35.2 ± 4.3hi | 71.8 ± 1.8 | -7.1 ± 0.2a–d | -4.9 ± 0.7de | 21.5 ± 2.8fg | 34.9 ± 0.3abc | 23.0 ± 2.7g–j | 51.3 ± 0.4a–d | 81.8 ± 1.1a–c | 35.4 ± 0.2bc |
| P1C3 | 44.1 ± 2.2c–g | 72.8 ± 0.3 | -7.7 ± 0.1a–d | -8.4 ± 0.6ab | 24.8 ± 0.7d–g | 24.2 ± 1.3fgh | 25.8 ± 0.6e–g | 44.2 ± 0.8e–j | 71.3 ± 0.5fg | 25.2 ± 1.1e–i |
| P1C4 | 46.7 ± 0.4b–f | 85.1 ± 0.6 | -2.2 ± 0.2h | -1.5 ± 0.3h | 26.4 ± 4.3c–g | 22.8 ± 0.2gh | 25.2 ± 3.7f–i | 40.0 ± 0.1h–l | 85.9 ± 0.2a | 23.0 ± 0.1hi |
| P2C1 | 46.2 ± 0.4b–f | 76.2 ± 1.1 | -8.3 ± 0.9abc | -6.9 ± 1.1bc | 34.4 ± 0.3a–d | 27.0 ± 2.6c–h | 35.5 ± 0.4a–d | 45.1 ± 1.7e–h | 77.8 ± 2.9cd | 28.8 ± 2.3de |
| P2C2 | 49.0 ± 0.6a–e | 76.1 ± 0.9 | -7.7 ± 0.4a–d | -3.5 ± 0.3efg | 31.9 ± 0.9a–e | 42.6 ± 0.2a | 32.6 ± 0.6cd | 56.4 ± 0.8a | 85.0 ± 0.7a | 42.8 ± 0.2a |
| P2C3 | 51.8 ± 1.4a–c | 80.8 ± 0.0 | -6.3 ± 0.1a–e | -8.8 ± 0.5a | 38.7 ± 0.8ab | 28.0 ± 2.2c–h | 38.9 ± 0.7ab | 46.8 ± 1.1d–g | 71.9 ± 2.1fg | 28.7 ± 1.5d–f |
| P2C4 | 34.7 ± 1.9i | 83.0 ± 0.0 | -2.4 ± 0.2h | -3.3 ± 0.5efg | 19.0 ± 0.5g | 24.9 ± 0.3e–h | 19.3 ± 0.5ij | 38.6 ± 0.5i–l | 82.7 ± 1.0ab | 25.3 ± 0.0e–i |
| P3C1 | 52.9 ± 0.7ab | 77.8 ± 2.7 | -8.0 ± 1.6abc | -7.6 ± 0.8ab | 40.2 ± 2.6a | 32.9 ± 1.2cde | 40.4 ± 1.9a | 53.0 ± 5.2a–c | 77.0 ± 1.9c–e | 33.8 ± 1.0c |
| P3C2 | 51.5 ± 1.2a–d | 63.6 ± 23.7 | -7.2 ± 2.4a–d | -7.2 ± 0.5abc | 35.5 ± 2.0abc | 34.0 ± 1.0bcd | 35.9 ± 1.9a–d | 47.8 ± 0.9c–f | 77.9 ± 0.3b–d | 35.0 ± 1.0bc |
| P3C3 | 50.5 ± 7.0a–e | 81.1 ± 2.4 | -5.7 ± 1.3c–f | -8.1 ± 0.7ab | 41.3 ± 4.5a | 26.9 ± 0.6c–h | 39.6 ± 4.7ab | 43.6 ± 3.0f–j | 72.7 ± 1.4e–g | 28.1 ± 0.3e–g |
| P3C4 | 42.6 ± 0.5e–h | 80.5 ± 0.2 | -3.3 ± 0.2fgh | -2.8 ± 0.2fgh | 19.5 ± 0.4g | 24.2 ± 0.7fgh | 19.7 ± 0.4h–i | 37.2 ± 0.4kl | 83.6 ± 0.3a | 24.4 ± 0.7g–i |
| P4C1 | 43.9 ± 1.8c–g | 73.9 ± 1.3 | -8.5 ± 0.1ab | -7.7 ± 0.6ab | 30.5 ± 2.4b–f | 32.0 ± 1.5c–f | 31.0 ± 2.0d–f | 52.3 ± 2.0a–d | 77.4 ± 3.0c–e | 34.2 ± 3.1c |
| P4C2 | 42.8 ± 4.0e–h | 76.2 ± 2.3 | -7.4 ± 0.4a–d | -4.0 ± 0.4def | 32.1 ± 4.3a–e | 30.5 ± 8.4c–g | 31.8 ± 3.5c–e | 44.6 ± 3.8e–i | 83.3 ± 2.0a | 24.6 ± 1.0f–i |
| P4C3 | 48.3 ± 3.6a–e | 77.7 ± 6.1 | -5.9 ± 2.5b–f | -7.8 ± 0.2ab | 35.7 ± 8.3abc | 31.6 ± 1.1c–f | 37.4 ± 3.2a–c | 54.4 ± 0.7ab | 76.0 ± 0.1d–f | 32.2 ± 0.9cd |
| P4C4 | 36.3 ± 0.5g–i | 81.8 ± 0.0 | -2.7 ± 0.2gh | -1.8 ± 0.1gh | 17.7 ± 0.1g | 24.0 ± 0.1fgh | 17.9 ± 0.1j | 41.1 ± 0.1g–k | 85.7 ± 0.1a | 24.1 ± 0.15g–i |
| P5C1 | 50.8 ± 1.1a–d | 80.5 ± 2.5 | -5.2 ± 0.1d–g | -7.5 ± 0.6ab | 36.8 ± 0.5ab | 30.1 ± 3.0c–g | 37.4 ± 0.4a–c | 53.5 ± 4.3a–c | 77.0 ± 3.8c–e | 35.2 ± 2.5bc |
| P5C2 | 49.0 ± 2.9a–e | 63.6 ± 23.1 | -7.7 ± 2.0a–d | -4.5 ± 0.4def | 34.8 ± 0.3abc | 41.5 ± 0.5ab | 36.5 ± 1.5a–d | 54.0 ± 0.7ab | 85.5 ± 2.2a | 42.3 ± 0.9a |
| P5C3 | 56.1 ± 2.2a | 77.5 ± 1.8 | -8.9 ± 0.9a | -5.5 ± 1.6cd | 36.3 ± 8.6ab | 34.1 ± 7.1bcd | 33.6 ± 2.0b–d | 52.2 ± 2.1a–d | 84.8 ± 1.6a | 38.9 ± 2.3ab |
| P5C4 | 35.1 ± 0.1hi | 82.7 ± 0.4 | -2.6 ± 0.3gh | -1.8 ± 0.1gh | 19.3 ± 0.3g | 26.5 ± 0.1d–h | 19.3 ± 0.1ij | 38.2 ± 0.2j–l | 85.9 ± 0.1a | 26.5 ± 0.1e–h |
| P6C1 | 43.8 ± 0.6d–g | 70.6 ± 0.1 | -8.2 ± 0.2abc | -6.8 ± 0.7bc | 23.3 ± 0.7efg | 27.9 ± 0.1c–h | 24.9 ± 0.7g–i | 43.3 ± 1.1f–j | 75.9 ± 1.2d–f | 28.8 ± 0.2de |
| P6C2 | 40.0 ± 4.4f–i | 72.1 ± 0.1 | -7.6 ± 0.4a–d | -6.8 ± 0.1bc | 24.1 ± 0.8efg | 31.4 ± 1.4c–f | 25.5 ± 0.8f–h | 50.1 ± 0.6b–e | 78.1 ± 0.4b–d | 32.7 ± 1.0cd |
| P6C3 | 39.5 ± 2.0f–i | 72.0 ± 0.3 | -8.2 ± 0.5abc | -7.6 ± 0.5ab | 25.0 ± 1.3d–g | 27.2 ± 0.6c–h | 25.8 ± 1.0e–g | 48.4 ± 0.9b–f | 74.6 ± 0.6d–g | 27.9 ± 0.4e–g |
| P6C4 | 37.1 ± 0.6g–i | 81.2 ± 0.7 | -3.6 ± 0.3e–h | -3.0 ± 0.2fgh | 22.8 ± 0.6efg | 27.5 ± 2.3c–h | 22.8 ± 0.5g–j | 40.8 ± 0.2g–k | 83.8 ± 0.3a | 27.0 ± 2.0e–h |
| LS | *** | NS | *** | *** | *** | *** | *** | *** | *** | *** |
Numeric values (±) are standard deviation, and letters in the same row (a–l) are significant differences.
P1 and C1, control; P2 and P3, perforated and non-perforated polyethylene (PPE and NPE, respectively); P4 and P5, perforated and non-perforated polypropylene (PPP and NPP, respectively); P6, brown paper (BP); C2, NaOCl; C3, KMS; C4, blanching. (***p < 0.00, NS, not significant).