Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Effects of Delayed CA Treatment on Fruit Quality of 'Fuji' Apples During Storage

지연 Controlled Atmosphere(CA)저장이 저장 중 '후지' 과실의 품질에 미치는 영향

  • Kweon, Hun-Joong (Apple Research Station, National Institute of Horticultural & Herbal Science) ;
  • Choi, Dong Geun (Department of Horticulture Science, Chonbuk National University) ;
  • Lee, Jinwook (USDA-ARS, Tree Fruit Research Laboratory) ;
  • Jung, Hee-Young (School of Applied Biosciences, Kyungpook National University) ;
  • Choung, Myoung-Gun (Department of Herbal Medicine Resource, Dogye Campus, Kangwon National University) ;
  • Kang, In-Kyu (Department of Horticultural Sciences, Kyungpook National University)
  • 권헌중 (국립원예특작과학원 사과시험장) ;
  • 최동근 (전북대학교 원예학과) ;
  • 이진욱 (미국농무성 과수연구실) ;
  • 정희영 (경북대학교 응용생명과학부) ;
  • 정명근 (강원대학교 생약자원개발학과) ;
  • 강인규 (경북대학교 원예과학과)
  • Received : 2013.06.11
  • Accepted : 2013.07.09
  • Published : 2013.09.30
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Abstract

This study was conducted to investigate the effect of delayed controlled atmosphere (CA) storage on fruit quality and the incidence of storage disorders during CA storage of 'Fuji' apples (Malus x domestica Borkh.). In the first year of experiment, 'Fuji' apples showed 40% of watercore disorder at the commercial harvest time (Oct. 22). Twenty days delayed CA storage caused to develop the incidence of flesh browning while 30 days delayed CA storage did not. In the second year of experiment, watercore was increased with delaying harvest time. As the estabilishment of delayed CA storage was delayed, the incidence of flesh browning increased at 10 to 30 days delayed CA storage but 40 days delayed CA storage did not have any flesh browning incidence. Respiration rate increased with extending the storage duration. Delayed CA storage reduced respiration rate but was not different compared to the rapid CA. Ethylene production rate was lower in delayed CA storage than in cold storage but higher in delayed CA storage, compared to rapid CA storage. Titratable acidity was lower in delayed CA storage as CA storage progressed. Firmness was not different between rapid CA storage and delayed CA storage after 8 months of CA storage. Therefore, the results indicate that delayed CA storage should be a promising approach to reduce the risk development of flesh browning and watercore during CA storage of 'Fuji' apples.

본 연구애서는 '후지' 사과의 CA 저장을 실용화하기 위하여 수확시기와 일정기간 저온저장한 후 CA 환경을 설정하는 지연 CA 처리가 저장 중 내부갈변장해와 과실품질에 미치는 영향을 조사하였다. 1차 년도에 '후지' 사과를 10월 22일에 수확하였을 때 밀병 발생율이 40%였고, CA 환경 조성($O_2\;2.5{\pm}0.5%+CO_2\;2.5{\pm}0.5%$)을 20일 지연 CA 저장하였을 때는 내부갈변이 발생하였으나, 30일 지연 CA 저장에서는 내부갈변이 발생하지 않았다. 2차 년도에는 수확시기가 늦어질수록 밀병 발생율이 높았고, 이러한 과실은 10~30일 지연 CA 처리구에서 내부갈변장해가 발생하였으나, 40일 지연 CA 처리구에서는 내부갈변장해가 발생하지 않았다. 호흡량은 저온저장 과실에서는 저장기간이 길어질수록 급격히 증가하였으나 지연 CA 저장에서는 호흡량이 낮게 유지되었고, 급속 CA 저장에 비해서 차이를 보이지 않았다. 에틸렌 발생량은 지연 CA 저장한 과실들이 저온저장에 비해서 낮았으나, 급속 CA 저장에 비해서는 다소 높은 발생량을 보였다. 산 함량은 지연 CA 저장이 급속 CA 저장에 비해 저장기간이 길어질수록 감소하는 경향이었고, 경도는 저장 8개월 후에도 급속 CA 처리구와 지연 CA 처리구간에는 차이를 보이지 않았다.

Keywords

References

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