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Comparison of the Quality of Highland-Grown Kimchi Cabbage ‘Choon Gwang’ during Cold Storage after Pretreatments

수확 후 전처리에 의한 고랭지 배추 ‘춘광’ 품종의 저온 저장 중 품질 변화에 대한 비교

Sang Jun Bae1
,
Hyang Lan Eum2
,
Byung-Sup Kim1
,
Jungro Yoon3
,
Sae Jin Hong1*
배 상준1
,
엄 향란2
,
김 병섭1
,
윤 정로3
,
홍 세진1*
1Department of Plant Science, Gangneung-Wonju National University
2NICEM Pyeongchang branch institute, Green Bio Science & Technology, Seoul National University
3Department of Food Processing and Distribution, Gangneung-Wonju National University
1강릉원주대학교 식물생명과학과
2서울대학교 그린바이오과학기술연구원 나이셈 평창분원
3강릉원주대학교 식품가공유통학과
*교신저자. *Corresponding Author. 
30 April 2015. pp. 233-241
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Abstract

Kimchi cabbage ‘Choon Gwang’ cultivar that was grown in highlands in Gangneung was subjected to predrying, room cooling, and forced air cooling, and then packed with/without 0.02 mm HDPE film to investigate the effect of postharvest treatment on quality characteristics during 8 weeks storage at 2oC (RH 90 ± 5%). Weight loss in forced air cooling and room cooling was lower than 3-4% with 0.02 mm HDPE film liner treatment during storage. However, it was only below 10% in room cooling without liner treatment and forced air cooling without liner treatment led to the highest weight loss, above 15%. Conversely, the control had lower weight loss than the others. SSC was 2-4 obrix for all treatments and there was no difference between postharvest treatments and liner treatments. Color index and firmness both showed no differences with/without 0.02 mm HDPE film and postharvest treatments. In sensory evaluation, forced air cooling with liner treatment was effective, with the highest score, especially in appearance and crispness. After 6 weeks, control kimchi cabbage without liner treatment was damaged seriously in appearance and the internal color had changed to brown. Room cooling and predrying with liner treatment changed the start of internal browning to after 8 weeks storage.

Keywords
forced air cooling
internal browning
liner treatment
predrying
room cooling

강원도 강릉에 위치한 고랭지 지역에서 재배된 배추 ‘춘광’ 품종은 수확 직후 차압식예냉, 통풍식예냉, 예건 처리를 하였고, 전처리 후 각각 처리에 대해 0.02mm HDPE film으로 liner 처리 유무에 따라 분류한 다음 2°C에 저장을 하면서 품질 조사를 실시하였다. 저장 중 무게 손실은 liner 처리구에서 차압예냉이 3% 미만의 손실률대조구가 손실률이 가장 적었다. 가용성고형물의 경우 2-4oBrix 정도로 나타났으며, 색도는 CIE L* 값은 50 내외로 큰 차이를 보이지 않았고, hue angle 값은 조금씩 감소하였으나 120 ± 2°C 사이 대조구가 손실률이 가장 적었다. 가용성고형물의 경우 2-4oBrix 정도로 나타났으며, 색도는 CIE L* 값은 50 내외로 큰 차이를 보이지 않았고, hue angle 값은 조금씩 감소하였으나 120 ± 2°C 사이 녹색의 범위 안에 분포하여 색의 변화에 대한 차이는 없었다. Chroma 값의 경우에도 28-32 사이에 분포하였다. 경도는 22N 정도로 나타났으며, 처리에 따른 유의적 차이는 보이지 않았다. 관능 평과 결과, 외관과 아삭거림 정도의 경우 차압예냉을 실시한 후 liner를 적용한 배추에서 가장 좋은 결과가 나타났으며, 나머지 항목에서는 유의적 차이가 없었다. 저장 6주 경과 후 liner 무처리구에서 외관이 많이 손상되었고, 7주 경과 후 liner 처리구에서 통풍예냉과 예건에서 내부 갈변이 심하게 발생하였다.

키워드
알루미늄 전용 차광 스크린
색도
수출장미
폴리프로필렌
절화수명
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Information
  • Publisher :KOREAN SOCIETY FOR HORTICULTURAL SCIENCE
  • Publisher(Ko) :한국원예학회
  • Journal Title :Horticultural Science and Technology
  • Journal Title(Ko) :원예과학기술지
  • Volume : 33
  • No :2
  • Pages :233-241
  • Received Date : 2014-03-19
  • Revised Date : 2014-11-21
  • Accepted Date : 2014-12-03
  • DOI :https://doi.org/10.7235/hort.2015.14048
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