Effect of Breathable Film for Modified Atmosphere Packaging Material on the Quality and Storability of Tomato in Long Distance Export Condition

초록

The study was carried out to investigate the effect of MA packaging materials on quality and storability of tomato in long distance export condition. We found that the fresh weight loss in perforated film was higher than other breathable films. The fresh weight of tomato (cv ‘Madison’) packaged with breathable films, such as 5,000 cc, 10,000 cc, 20,000 cc/m^2 · day · atm oxygen permeable films, reduced less than 0.6%, but perforated film that already being used for packaging horticultural crops showed 1.4% fresh weight loss during 5oC storage for 20 days and then 20oC storage for last 5 days with 85% relative humidity. The carbon dioxide and oxygen concentration in tomato packages showed proper level for MA storage in 20,000 cc/m^2 · day · atm O2 breathable film treatment at 5oC storage. Although at 20oC storage, the carbon dioxide concentration increased sharply, the oxygen concentration decreased remarkably, the change of these gases concentration was the lowest in 20,000 cc film treatment. The ethylene concentration was sharply increased at 20oC from 21st day to 25th day after 5oC storage for 20 day, and the concentration was lower in 20,000 cc film treatment among the breathable film treatments. Until 20 days, at 5oC storage all treatments did not exceed the marketability. However, the last 5 days during at 20oC, the fruit appeared fungal rots and the quality rapidly decreased. The 20,000 cc/m^2 · day · atm O2 permeability treated tomato performed higher firmness (9.56 N), vitamin C (16.31 mg/100 gFW), and soluble solids (7 oBrix) than other breathable films at final storage day. The results suggest that the 20,000 cc/m^2 · day · atm O2 permeable film treatment of tomato (cv ‘Madison’) performed the highest quality and storability of tomato for long distance exporting

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