Two experiments were conducted to investigate the effects of active- and passive-modified atmosphere
packaging (MAP) on respiration rate (RR) and quality attributes of minimally processed pomegranate
arils (cv. Wonderful) stored at 5 C for 12 d. In experiment 1, pomegranate arils were packaged in
low barrier bi-axially oriented polyester (BOP) film under active-MA (5 kPa O2 + 10 kPa CO2, 30 kPa O2 +
40 kPa CO2), passive-MA and in clamshell trays. In experiment 2, a high barrier Polylid1 film was used
with arils packaged under three active-MAs (5 kPa O2 + 10 kPa CO2 + 85 kPa N2; 30 kPa O2 + 10 kPa O2 +
60 kPa N2; 100 kPa N2) and passive-MA. Arils packed in clamshell trays had lowest RR (RCO2)
compared to the other MA treatments in experiment 1, ranging from 41.1 nmol kg1 s1 on day 3 to
238.8 nmol kg1 s
1 on day 12. Respiration rate of arils packaged in the high barrier polylid film was
significantly affected by MA treatments. At the end of 12 d storage, total anthocyanin content (TAC) in
arils was highest for clamshell packages (0.31 0.01 g L1
) and lowest in passive-MAP (0.27 0.02 g L1
).
Packaging arils in high O2 atmosphere and 100 kPa N2 significantly lower aerobic mesophilic bacteria
counts throughout the storage duration. Based on sensory scores obtained and microbial load, the shelf
life for arils packaged in clamshell trays, passive-MA, and high O2 level MA was 6, 9 and 12 d, respectively.
ã201
Two experiments were conducted to investigate the effects of active- and passive-modified atmospherepackaging (MAP) on respiration rate (RR) and quality attributes of minimally processed pomegranatearils (cv. Wonderful) stored at 5 C for 12 d. In experiment 1, pomegranate arils were packaged inlow barrier bi-axially oriented polyester (BOP) film under active-MA (5 kPa O2 + 10 kPa CO2, 30 kPa O2 +40 kPa CO2), passive-MA and in clamshell trays. In experiment 2, a high barrier Polylid1 film was usedwith arils packaged under three active-MAs (5 kPa O2 + 10 kPa CO2 + 85 kPa N2; 30 kPa O2 + 10 kPa O2 +60 kPa N2; 100 kPa N2) and passive-MA. Arils packed in clamshell trays had lowest RR (RCO2)compared to the other MA treatments in experiment 1, ranging from 41.1 nmol kg1 s1 on day 3 to238.8 nmol kg1 s1 on day 12. Respiration rate of arils packaged in the high barrier polylid film wassignificantly affected by MA treatments. At the end of 12 d storage, total anthocyanin content (TAC) inarils was highest for clamshell packages (0.31 0.01 g L1) and lowest in passive-MAP (0.27 0.02 g L1).Packaging arils in high O2 atmosphere and 100 kPa N2 significantly lower aerobic mesophilic bacteriacounts throughout the storage duration. Based on sensory scores obtained and microbial load, the shelflife for arils packaged in clamshell trays, passive-MA, and high O2 level MA was 6, 9 and 12 d, respectively.ã201
การแปล กรุณารอสักครู่..
