Table 1.
Respiration rates (CO2 and O2), respiratory quotient at 25 °C (RQ) and rot incidence (RI) of Emerald blueberries before (initial) and after 30 days of refrigerated storage for different packaging systems.
| Sample | RCO2 (mL kg−1 h−1) |
RO2 (mL kg−1 h−1) |
RQ | RI |
|---|---|---|---|---|
| Initial | 1.31 ± 0.07 d | 1.05 ± 0.05 d | 1.25 | - |
| CS:CH | 6.30 ± 0.32 b | 6.06 ± 0.30 b | 1.04 | 12 |
| GSE3 | 12.87 ± 0.65 a | 12.98 ± 0.65 a | 0.99 | 0 |
| LEO3 | 5.84 ± 0.29 b | 4.96 ± 0.25 b,c | 1.18 | 28 |
| CL | 2.82 ± 0.14 c | 2.09 ± 0.10 d | 1.35 | 24 |
| MA | 3.19 ± 0.16 c | 4.66 ± 0.23 c | 0.68 | 0 |
Informed values correspond to mean ± standard deviation. Fruit were packed in clamshell (CL), biodegradable films based on corn starch and chitosan (CS:CH), active biodegradable films containing 3% grapefruit seed extract (GSE3) or 3% lemon essential oil (LEO3), and modified atmosphere commercial bags (MA). Different letters within the same column indicate values statistically (p < 0.05) different.