Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Responses to 1-MCP during Storage of Kimchi Cabbage Ryouckgwang Cultivar

배추 력광 품종의 저장 중 1-MCP에 대한 반응

  • Hong, Sae Jin (Dept. of Plant Science, College of Life Sciences, Gangneung-Wonju National University) ;
  • Kim, Byung-Sup (Dept. of Plant Science, College of Life Sciences, Gangneung-Wonju National University) ;
  • Kim, Byeong-Sam (Korea Food Research Institute) ;
  • Eum, Hyang Lan (Dept. of Plant Science, College of Life Sciences, Gangneung-Wonju National University)
  • 홍세진 (강릉원주대학교 식물생명과학과) ;
  • 김병섭 (강릉원주대학교 식물생명과학과) ;
  • 김병삼 (한국식품연구원) ;
  • 엄향란 (강릉원주대학교 식물생명과학과)
  • Received : 2018.01.31
  • Accepted : 2018.04.10
  • Published : 2018.04.30
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Abstract

The effect of 1-methylcyclopropene (1-MCP) in the storability of kimchi cabbage at cold storage condition was investigated. Kimchi cabbage (Brassica campestris L. cv Ryouckgwang) was divided four groups, forced air cooling (FAC), FAC + 0.03 mm linear low density polyethylene liner (Liner), $FAC+2{\mu}L{\cdot}L^{-1}$ 1-MCP (1-MCP), and FAC + 1-MCP + Liner. After each treatment kimchi cabbage was stored at $2^{\circ}C$, 95% RH. Quality parameters were weight loss, soluble solids content (SSC), firmness, and color ($CIE\;L^*$, $a^*$, $b^*$, chroma, hue angle). Weight loss during storage was showed significant difference by Liner treatment. In particular FAC + 1-MCP + Liner treatment showed 12.5% reduction after 6 weeks of storage period and minimized the weight loss rate compared to other treatments. SSC of kimchi cabbage was $2.5^{\circ}Brix$ at harvest and FAC + 1-MCP + Liner treatment maintained the SSC until 3 weeks, while in other treatments gradually were increased. The firmness of kimchi cabbage was 24.0 N immediately after harvest and the firmness at harvest time tended to be maintained at 22.6 N after 6 weeks of storage in FAC + 1-MCP + Liner treatment. During the storage period, the color change of the kimchi cabbage leaf can be confirmed by $CIE\;a^*$ and hue angle value. 1-MCP treatment alone did not affect the color change, however 1-MCP + Liner treatment was able to maintain the chromaticity at harvest time while minimizing the change of $CIE\;a^*$ and hue angle. These results suggest that 1-MCP treatment is not effective for the storage of kimchi cabbage but can be maintained for up to 6 weeks when treated with Liner.

배추를 저장하는 동안 품질을 유지하기 위한 방안으로 1-methylcyclopropene(1-MCP) 처리효과를 확인하였다. 수확된 배추는 즉시 실험실로 옮겨와 4개의 그룹(차압예냉 (forced-air cooling, FAC) 처리구, FAC + 0.03mm LLDPE film(Liner) 처리구, $FAC+2{\mu}L{\cdot}L^{-1}$ 1-MCP(1-MCP) 처리구, FAC + 1-MCP + Liner 처리구)으로 분류하여 각각의 처리를 실시한 후 $2^{\circ}C$, 95% RH 저온에서 저장하였다. 저장중 품질변화는 무게 감모율, 가용성 고형물 함량, 경도, 그리고 색도($CIE\;L^*$, $a^*$, $b^*$, chroma, hue angle)를 통해 확인하였다. 저장기간 동안 각 실험구의 감모율은 Liner 처리에 의해서 감소하였다. 저장기간 6주가 경과되면 FAC + 1-MCP + Liner 처리구는 12.5%의 감모율을 보이면서 다른 처리구들에 비해서 감모율을 최소화하였다. 가용성 고형물의 함량은 수확 시 $2.5^{\circ}Brix$였으며, 저장기간이 3주 경과되면서 FAC + 1-MCP + Liner 처리구에서 수확 시의 값이 유지된 반면, 다른 처리구 들은 증가하였다. 배추의 경도는 수확 직후 24.0N 이었으며, FAC + 1-MCP + Liner 처리구에서 저장 6주 경과 후 22.6N으로 수확 당시의 경도가 유지되는 경향을 보였다. 저장 기간 동안 배춧잎의 색 변화는 $CIE\;a^*$와 hue angle 값으로 확인할 수 있으며, 1-MCP 만을 처리할 경우에는 색도 변화에 영향을 미치지 않는 반면 1-MCP를 처리한 다음 Liner 포장을 실시하면 $CIE\;a^*$와 hue angle의 변화를 최소화 시키면서 수확 당시의 색도를 유지시킬 수 있었다. 이상의 결과에서 1-MCP 처리는 배추 력광 품종 저장에는 효과가 미비하나, Liner와 함께 처리할 경우 6주까지 품질유지가 가능하였다.

Keywords

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