Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Selection of Non-Perforated Breathable Film to Enhance Storability of Cherry Tomato for Modified Atmosphere Storage at Different Temperatures

방울토마토의 MA 저장성 향상을 위한 비천공 breathable 필름 구명

  • Islam, Mohammad Zahirul (Department of Horticulture, Kangwon National University) ;
  • Mele, Mahmuda Akter (Department of Horticulture, Kangwon National University) ;
  • Lee, Han Jong (Department of Horticulture, Kangwon National University) ;
  • Lee, Kyoung Soo (Department of Horticulture, Kangwon National University) ;
  • Hong, Sung Mi (Department of Horticulture, Kangwon National University) ;
  • Jeong, Min Jae (Department of Horticulture, Kangwon National University) ;
  • Kim, Il-Seop (Department of Horticulture, Kangwon National University) ;
  • Hong, Soon-Kwan (Department of Bio-Health Technology, Kangwon National University) ;
  • Choi, In-Lee (Department of Horticulture, Kangwon National University) ;
  • Baek, Jun Pill (Agriculture and Life Science Research Institute, Kangwon National University) ;
  • Kang, Ho-Min (Department of Horticulture, Kangwon National University)
  • Received : 2014.02.28
  • Accepted : 2014.06.05
  • Published : 2014.06.30
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Abstract

This study was conducted to find out the appropriate packaging materials to extend the storability and maintain the quality of cherry tomato for modified atmosphere (MA) storage. Tomatoes were grown by hydroponic at a plastic house in Gangwon Province. Light red maturity stage tomatoes were harvested and packed with MA condition (10,000; 20,000; 40,000; 60,000; 80,000; and $100,000cc/m^2.day.atm$ $O_2$ permeability film) and perforated film to store at $5^{\circ}C$, $11^{\circ}C$ and $24^{\circ}C$. The fresh weight loss was less than 0.6% in all non-perforated breathable films at $^5{\circ}C$, $11^{\circ}C$, and $24^{\circ}C$, but perforated film had less than 2.93% at $5^{\circ}C$, 13.29% at $11^{\circ}C$ and 27.24% at $24^{\circ}C$. The 20,000cc at $5^{\circ}C$ and $11^{\circ}C$, and the 40,000cc film at $24^{\circ}C$ balanced optimum carbon dioxide and oxygen concentration in the package to maintain quality. The 10,000cc film was appeared the significantly highest ethylene concentration at $5^{\circ}C$, $11^{\circ}C$, and $24^{\circ}C$, this film had the lowest $O_2$ permeability. Visual quality, firmness, and soluble solids were maintained in 20,000cc films both at $5^{\circ}C$ and $11^{\circ}C$, the 40,000cc film at $24^{\circ}C$. There was no any trend in titratable acidity and vitamin C content of treated packed film types and temperatures at cherry tomatoes packages. Therefore, the appropriate MA condition for $5^{\circ}C$ and $11^{\circ}C$ is $20,000cc/m^2.day.atm$ $O_2$ permeability film; for $24^{\circ}C$ it is $40,000cc/m^2.day.atm$ $O_2$ permeability film because those films extended the storability through the firmness, soluble solids as well as visual quality.

본 연구는 방울토마토의 MA 저장시 저장기간 연장과 품질 유지를 위한 비천공 breathable 필름 종류를 구명하고자 진행되었다. 강원도에 위치한 플라스틱 하우스에서 수경재배한 토마토를 담적색기에 수확하여 $5^{\circ}C$, $11^{\circ}C$, 그리고 $24^{\circ}C$에서 산소투과도가 각기 다른 비천공 breathable 필름(10,000; 20,000; 40,000; 60,000; 80,000; $100,000cc/m^2.day.atm$)과 천공필름으로 포장하여 저장하였다. 저장 중 생체중 감소율은 세가지 온도 모두에서 모든 비천공 breathable 필름처리구에서는 0.6%미만이었으나, 천공필름은 $5^{\circ}C$는 2.93%, $11^{\circ}C$는 13.29%, 그리고 $24^{\circ}C$에서는 27.24%에 달하였다. 포장내 이산화탄소와 산소 농도를 볼 때 $5^{\circ}C$와 $11^{\circ}C$에서 20,000 cc 필름, $24^{\circ}C$에서 40,000 cc 필름이 MA 조건에 근접한 수치를 보였다. 에틸렌 농도는 산소투과도가 가장 낮은 10,000 cc에서 모든 온도에서 가장 높았다. 저장 중 외관상 품질과 최종일에 측정한 경도와 당도는 $5^{\circ}C$와 $11^{\circ}C$의 20,000 cc 필름, $24^{\circ}C$의 40,000 cc 필름이 높은 수치를 나타내었다. 그러나 산도와 비타민 C 함량은 필름처리에 대한 일정한 경향을 보이지 않았다. 이상의 결과로 보았을 때, MA 저장시 포장내 대기조성과 저장 종료일의 과실 품질 등을 비교한 결과 방울토마토는 $5^{\circ}C$와 $11^{\circ}C$에서 20,000 cc 필름, $24^{\circ}C$에서는 40,000 cc 필름이 적합하였다.

Keywords

References

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