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Influence of Maturity of Fruit and Storage Condition on the Storability of Sweet Pepper in MA Storage  

Choi, In-Lee (Dept. of Horticulture, Kangwon National University)
Kim, Il-Seop (Dept. of Horticulture, Kangwon National University)
Kang, Ho-Min (Dept. of Horticulture, Kangwon National University)
Publication Information
Journal of Bio-Environment Control / v.17, no.4, 2008 , pp. 319-324 More about this Journal
Abstract
The sweet pepper (paprika) is one of the most important exported vegetable crops in Korea. This study evaluated the storability of sweet pepper fruits between 2 cultivars with different maturities under different storage conditions. The sweet peppers ('Special' and 'Fiesta') were grown in a rockwool hydroponic system, and harvested two different maturities: half-maturity and full-maturity levels. The sweet pepper fruits were stored in MA(non-ventilated) and non-MA(ventilated) conditions at 4 and $9^{\circ}C$ for 20 days. The storability of sweet pepper fruit was the highest in $4^{\circ}C$ MA conditions that remained 5% carbon dioxide and 10% oxygen during the storage. The ethylene concentration in MA condition showed $2{\sim}8{\mu}l/l$ regardless of storage temperatures, cultivars and maturities. The fruits packaged with non-ventilated film, showed lower weight loss, and higher firmness, and there was no different about decay ratio compared to the fruits packed ventilated film. The coloration of semi-matured fruit that colored 50% before storage progressed faster in non-ventilated packaging condition at $9^{\circ}C$, but their color did not changed as same as level of full-matured fruit. The electrolyte leakages and respiratory rate that estimated degree of chilling injury was highest in non-MA(ventilated) conditions of 'Special' full matured fruit placed at room temperature for 3 days following storage at $4^{\circ}C$ for 20 days. It may be suggested that sweet pepper fruit packed sealed (non-ventilated) film and stored at non-chilling temperature can be maintained better quality for long term storage.
Keywords
carbon dioxide; electrolyte leakage; ethylene; firmness; oxygen;
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Times Cited By KSCI : 2  (Citation Analysis)
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