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KMID : 1024420180220020100
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Food Engineering Progress
2018 Volume.22 No. 2 p.100 ~ p.109
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Effect of Pallet Size MAP using PA Film and LLDPE Film on the Shelf Life of Tomatoes and Paprikas
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Kim Jin-Se
Jung Hyun-Kyung
Kim Jung-Hwa
Lee Young-Hee
Park Seok-Ho
Choi Dong-Soo
Kim Yong-Hoon
Lee Soo-Jang
Park Chun-Wan
Cho Byoung-Kwan
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Abstract
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The variations of internal temperature, relative humidity (RH) and gas concentration in the pallet modified atmosphere package (MAP), using polyamide (PA) film and linear low density polyethylene (LLDPE) film, were investigated to extend the shelf life of tomatoes and paprikas. The temperature and RH inside the MAP were higher than that in the cold room, but there was no water condensation inside the MA film. The ethylene concentration in the MAP was maintained below 10 ppm. Oxygen level was stabilized at 2 to 5% during the storage and carbon dioxide level was also stabilized at 15 to 20%. The weight loss of the MAP tomatoes and paprikas was lower than that of the control because the RH in the pallet MAP was higher than that of the cold room. The fungal decay rate in the pallet MAP was also lower than that in the control due to a low oxygen concentration rate. There were no significant differences in the soluble solids, titratable acidity and Hunter’s color, but differences did exist in the hardness between the MAP and the control. So, this pallet MAP method was effective at extending the shelf life of tomatoes and paprikas considering the weight loss, fungal decay and hardness.
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KEYWORD
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modified atmosphere packaging, pallet, tomato, paprika, shelf life
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