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2018 Vol.27, Issue 2 Preview Page
Effects of OTR Film Type on the Quality of Lepidium sativum L. Baby Leaf Vegetable during MA Storage

큰다닥냉이 어린잎채소의 MA저장 중 OTR 필름 종류가 품질에 미치는 영향

Ju Young Kim1
,
Su Jeong Han1
,
In-Lee Choi12
,
Jae Su Yoon1
,
Young Hyun Moon1
,
Sang Min Kim1
,
Ho-Min Kang12*
김 주영1
,
한 수정1
,
최 인이12
,
윤 재수1
,
문 영현1
,
김 상민1
,
강 호민12*
1Division of Horticulture and Systems Engineering, Program of Horticulture, Kangwon National University, Chuncheon 24341, Korea
2Agricultural and Life Science Research Institute, Kangwon National University, Chuncheon 24341, Korea
1강원대학교 원예·시스템공학부 원예과학전공
2강원대학교 농업생명과학연구원
*Corresponding author: hominkang@kangwon.ac.kr
30 April 2018. pp. 180-184
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Abstract

This study was conducted to examine the effect OTR film type on the quality of garden cress (Lepidium sativum L.) baby leaf during MA storage. Garden cress harvested at baby leaf size of 10cm plant height packed with 1,300 cc, 10,000 cc, 20,000 cc, 40,000 cc, and 80,000 cc·m-2·day-1·atm-1 OTR (oxygen transmission rate) films and MP (micro-perforated) film, and then stored at 8°C for 10 days. All of the OTR film treatments showed a decrease of 0.5% fresh weight until the storage end date and a 1.3% decrease in the MP film treatment. The oxygen concentration in the packaging during storage was maintained at 18% or more in 20,000 cc, 40,000 cc, and 80,000 cc OTR film treatments, while the 1,300 cc OTR film treatment decreased to 11% at the storage end date. And the concentration of carbon dioxide was steadily increased in the 1,300 cc and 10,000 cc OTR film treatments to show the levels of 4.5% and 3.4%, respectively, and the other OTR film treatments showed a concentration of less than 1%. Ethylene concentration in the package was maintained at the highest level of 3-5 μL·L-1 in the 1,300 cc treatment during the storage period. The lowest odor and the highest quality of appearance were observed in the 1,300 cc treatment, but the MP film treatment and the other OTR treatments lost marketable quality due to yellowing. The color of garden cress baby leaf was changed the lowest in 1,300 cc treatment that showed the highest chlorophyll content and Hue angle value, lowest b* value, present of yellowing at end of storage date. Therefore, 1,300 cc treatment which was most effective for yellowing and odor suppression during storage is considered to be suitable for packaging of garden cress baby leaf.

Keywords
off-odor
oxygen transmission rate
visual quality
yellowing

본 연구는 큰다닥냉이 어린잎 채소의 MA저장 중 OTR 필름 종류가 품질에 미치는 영향을 알아보고자 수 행하였다. 플라스틱하우스에서 2주간 재배한 초장 10cm 내외의 큰다닥냉이 어린잎를 산소투과도가 1,300cc, 10,000cc, 20,000cc, 40,000cc, 그리고 80,000cc·m-2·day-1 ·atm-1인 OTR필름과 대조구인 미세천공필름(Ø 0.06cm, 36ea/100cm2)을 사용하여 포장하여 8°C에서 10일간 저 장하였다. 저장 종료일 모든 OTR필름 처리구의 생체중 감소율은 0.5%를 보였고, 대조구인 미세천공 필름은 1.3%의 감소를 나타냈다. 포장 내 산소농도는 20,000cc, 40,000cc, 그리고 80,000cc OTR필름 처리구에서 저장 중 18%이상의 농도을 유지하였고, 1,300cc OTR필름 처 리구는 저장 종료일 11%의 농도로 가장 낮게 유지되었 다. 이산화탄소 농도는 1,300cc와 10,000cc OTR필름 처 리구에서 각각 4.5%와 3.4%의 수준으로 꾸준히 증가하 였고, 다른 OTR필름 처리구는 1% 미만의 농도를 유지 하였다. 포장 내 에틸렌 농도는 저장 기간 중 1,300cc OTR 필름 처리구에서 3-5μL·L-1로 가장 높게 유지되었 다. 1,300cc OTR필름 처리구에서 가장 낮은 이취와 가 장 높은 외관상 품질을 보였는데, 대조구를 포함한 다른 처리구들은 황화현상으로 인한 품질저하로 상품성을 상 실하였다. 저장 종료일에 조사한 엽록소 함량과 Hue angle값은 1,300cc OTR필름 처리구에서 가장 높았으며, 황색도를 나타내는 b*값은 1,300cc OTR필름 처리구에 서 가장 낮았다. 따라서 MA저장 중 황화와 이취 억제 효과가 우수한 1,300cc OTR필름이 큰다닥냉이 어린잎 채소의 포장에 적합하다고 판단된다.

키워드
이취
산소투과도
외관
황화현상
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Information
  • Publisher :The Korean Society for Bio-Environment Control
  • Publisher(Ko) :(사)한국생물환경조절학회
  • Journal Title :Protected Horticulture and Plant Factory
  • Journal Title(Ko) :시설원예ㆍ식물공장
  • Volume : 27
  • No :2
  • Pages :180-184
  • Received Date : 2018-03-15
  • Revised Date : 2018-04-27
  • Accepted Date : 2018-04-30
  • DOI :https://doi.org/10.12791/KSBEC.2018.27.2.180
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