Table 4 Changes* of titratable acidity, anthocyanin and ascorbic acid contents in barberries packaged under different atmospheres during storage at 25 °C
Characteristics | Atmosphere type | Storage day | |||
|---|---|---|---|---|---|
7 | 14 | 21 | 28 | ||
Harvesting day = 4.7 ± 0.13 | |||||
Acidity (%) | Control | 3.48 ± 0.20Bab | 3.86 ± 0.14Aa | 3.51 ± 0.17Bab | 3.15 ± 0.13Ab |
N2 gas | 3.69 ± 0.34Bab | 3.95 ± 0.07Aa | 3.53 ± 0.07Ba | 3.46 ± 0.07Aa | |
Vacuum | 4.42 ± 0.20Aa | 4.16 ± 0.46Aa | 3.87 ± 0.46Aa | 3.79 ± 0.70Aa | |
Oxygen scavenger | 4.56 ± 0.05Aa | 4.33 ± 0.04Aa | 3.94 ± 0.04Aa | 3.85 ± 0.75Aa | |
Harvesting day = 659.3 ± 6.3 | |||||
Anthocyanin (mg/100 g) | Control | 593.8 ± 25.9BCa | 535.7 ± 23.1Bab | 591.7 ± 22.4ABa | 515.9 ± 34.7Bb |
N2 gas | 557.2 ± 19.5Cb | 647.3 ± 33.7Aa | 537.0 ± 31.2Bb | 585.1 ± 35.0ABab | |
Vacuum | 645.5 ± 6.6Aab | 686.6 ± 40.2Aa | 616.2 ± 25.7Ab | 592.8 ± 22.2ABb | |
Oxygen scavenger | 624.8 ± 11.4ABa | 672.4 ± 32.3Aa | 635.2 ± 30.7Aa | 608.9 ± 39.0Aa | |
Harvesting day = 7.28 ± 0.38 | |||||
Ascorbic acid (mg/100 g) | Control | 5.67 ± 0.62Aa | 3.35 ± 0.66Bb | 2.43 ± 0.58Bb | 2.32 ± 0.42Bb |
N2 gas | 6.54 ± 0.84Aa | 5.43 ± 0.90ABab | 5.09 ± 0.91Aab | 3.86 ± 0.59ABb | |
Vacuum | 6.41 ± 0.41Aa | 5.96 ± 0.86Aab | 5.19 ± 0.60Aab | 4.18 ± 1.00ABb | |
Oxygen scavenger | 6.48 ± 0.81Aa | 6.11 ± 0.81Aa | 5.56 ± 0.67Aa | 4.65 ± 1.10Aa | |