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2019 Vol.31, Issue 2 Preview Page

Research Article

Effects of OTR Film Types on the Quality during MA Storage of Lactuca indica L. Baby Leaf Vegetable

OTR 필름 종류가 왕고들빼기 어린잎 채소의 MA 저장 중 품질에 미치는 영향

H. M. Kang1
,
I. L. Choi2
,
J. Y. Kim3*
강 호민1
,
최 인이2
,
김 주영3*
1Professor, Division of Horticulture and Systems Engineering, Program of Horticulture, Kangwon National University, Chuncheon 24341, Korea
2Post Doctor, Division of Horticulture and Systems Engineering, Program of Horticulture, Kangwon National University, Chuncheon 24341, Korea
3Researcher, BCS Korea, Cheonan 31197, Korea
1강원대학교 원예 ‧ 시스템공학부 원예과학전공 교수
2강원대학교 원예 ‧ 시스템공학부 원예과학전공 박사 후 연구원
3(주)비씨에스코리아 연구원
* Corresponding Author
31 July 2019. pp. 57-63
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Abstract

This study was conducted to examine the effects of OTR film types on the quality during MA (modified atmosphere) storage of ‘Sheonhyang’ (Lactuca indica L.) baby leaf vegetable harvested at baby leaves size less than 10 cm plant height packed with 50 cc, 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 22 days. Fresh weight loss rate of all OTR film treatments showed a 1.1% until the storage end date, and MP treatment showed a 5.5% until the storage end date. The oxygen concentration in the packaging during storage period was maintained at 19% over in 20,000 cc, 40,000 cc, and 80,000 cc OTR film treatments, and the 50 cc OTR film treatment was maintained 15－16% during storage period. And concentration of the carbon dioxide was showed the highest at 50 cc treatments of 11% at the storage end date, and 1,300 cc, 10,000 cc OTR film treatments to show the levels of 7% and 5%, respectively, and the other OTR film treatment showed a concentration of less than 4%. Micro-perforated film treatment was showed more than 20% of oxygen concentration and less than 0.1% of carbon dioxide concentration at storage end date. Ethylene concentration in the package was maintained 1－4 µL/L-1 in the all treatments during the storage period, and tended to increase rapidly at 17 days of storage. The visual quality was maintained in the 50 cc, 1,300 cc treatments at end of storage date. The chlorophyll content and Hue angle value were surveyed highest at 50 cc and 1,300 cc treatments at the end of storage, and the b* value of yellow color was lowest in 50 cc and 1,300 cc treatments. The DPPH radical scavenging activity decreased with increasing oxygen permeability at the end of storage compared with before storage. Therefore, 1,300 cc OTR film treatment which was most effective for yellowing suppression and maintaining quality during storage is considered to be proper for packaging of ‘Sheonhyang’ (Lactuca indica L.) baby leaf vegetable.

Keywords
DPPH radical scavenging ability
Visual quality
Wild vegetable
Yellowing
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Information
  • Publisher :Agriculture and Life Sciences Research Institute, Kangwon National University
  • Publisher(Ko) :강원대학교 농업생명과학대학 농업생명과학연구원
  • Journal Title :Journal of Agricultural, Life and Environmental Sciences
  • Journal Title(Ko) :농업생명환경연구
  • Volume : 31
  • No :2
  • Pages :57-63
  • Received Date : 2019-06-30
  • Revised Date : 2019-07-26
  • Accepted Date : 2019-07-26
  • DOI :https://doi.org/10.22698/jales.20190007
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