품종과 재배지역에 따른 치콘의 저장성 비교

An Comparison of Storability of Several Cultivars Chicon Grown in Different Regions

  • 발행 : 2009.09.30

초록

본 연구는 강원도 평창(고랭지)과 춘천(평탄지)의 두 지역에서 120일 동안 재배한 6가지 품종의 치콘용 치커리('Vintor', 'Focus', 'Nobus', 'Metafora', 'Kibora', 'Redoria Red')의 뿌리에서 생산한 치콘의 저장성을 비교하였다. 치콘 생산을 위해 수화한 치커리(Cichorium intybus L.) 뿌리는 $2^{\circ}C$, RH 90% 저장고에 120일간 저온처리한 후 $18^{\circ}C$에서 20일간 치콘 생산용 전용 양액($KNO_3\;0.54g{\cdot}L^{-1},\;Ca(NO_3)_2\;1.02g{\cdot}L^{-1},\;MgSO_4\;0.36g{\cdot}L^{-1},\;KH_2PO_4\;0.21g{\cdot}L^{-1},\;K_2SO_4\;0.10g{\cdot}L^{-1}$, pH 7.0)을 공급하였다. 이렇게 생산 치콘은 $25{\mu}m$ 세라믹 필름으로 포장하여 $8^{\circ}C$에서 저장하였다. 저장중 생체중은 28일 동안 99.5% 수준까지 유지되었는데, 품종별로는 'Redoria Red'이 재배지역은 춘천에서 많이 감소하였다. 저장중 포장재내 산소는 $10{\sim}17%$, 이산화탄소는 2% 수준이었는데 품종이나 재배지역별로 통계적 유의성 있는 차이를 보이지 않았으나, 생체중 감소가 컸던 'Redoria Red'에서 낮은 산소와 높은 이산화탄소 농도를 보였다. 저장중 포장재내 에틸렌 농도도 재배지역에 의한 차이는 없었으며, 품종별 차이에도 통계적 유의성은 없이 대체로 $1.0{\mu}{\iota}{\cdot}{\iota}^{-1}$ 수준이었다. 모든 처리에서 외관상 품질은 'Redoria Red'에 가장 먼저 저하되었는데, 에틸렌 피해 증상으로 알려진 적갈색 반점 증상(Russet spotting)이 나타나면서 외관상 품질이 저하되었다. 치콘 잎의 경도는 'Metafora', 'Focus', 'Kibora' 품종에서 높았으며, 평창재배 치콘이 춘천에서 재배된 것보다 높았다. 이상의 결과로 볼 때, 치콘은 고랭지지역은 평창에서 재배한 것이 생체중과 경도가 적어 보다 높은 저장성을 보였으며, 품종별로 붉은색 품종인 'Redoria Red'가 가장 낮은 저장성을 보였으며 'Metafora', 'Focus', 'Kibora' 품종이 경도 등에서 높은 저장성을 나타내었다.

This study was conducted to compare the storability of 6 chicory cultivars for producing chicon; 'Vintor', 'Focus', 'Metafora', 'Kibora', 'Nobus', and 'Redoria Red' grown in 2 regions: Chuncheon (plain region) and Pyeongchang (high land region). Chicons were produced from chicory roots that grown for 120days and then stored for over 120days at $2^{\circ}C$ and 90% of RH conditions. To produce chicon, chicory root was forced at $18^{\circ}C$ for 22days with suppling the nutrient solution ($KNO_30.54g{\cdot}L^{-1}$, $Ca(NO_3)_2\;1.02g{\cdot}L^{-1}$, $MgSO_4\;0.36g{\cdot}L^{-1}$, $KH_2PO_4\;0.21g{\cdot}L^{-1}$, $K_2SO_4\;0.10g{\cdot}L^{-1}$, pH 7.0). Chicons produced from 6 different chicory cultivars packed with $25{\mu}m$ ceramic film and stored for 25days at $8^{\circ}C$. The fresh weight of chicon in MAP was maintained to 99.5% of pre-storage weight. The fresh weight of 'Redoria Red' was lowest in all cultivars, and that of Chuncheon region cultivated treatment was lower than Pyeongchang treatment. The $CO_2$ and $O_2$ concentration in chicon MAP were 2% and $10{\sim}17%$. There were not significantly different among cultivars and between regions, although 'Redoria Red' cultivar showed highest $CO_2$ and lowest $O_2$ concentrations. The ethylene concentration in chicon MAP was $1.0{\mu}{\iota}{\cdot}{\iota}^{-1}$ and also didn't show any significant difference among all treatments. Chicon detoriorated visual quality with appearing russet spotting that result from ethylene gas. The visual quality of 'Redoria Red' cultivar decreased faster than the other cultivars. 'Metafora', 'Focus', and 'Kibora' maintained higher firmness of their leaf than the others, and the firmness was higher grown in Pyeongchang region cultivated treatments than in Chuncheon region.

키워드

참고문헌

  1. Bae, l.H., K.W. Park, and H.M. Kang. 2005. Effects of packing materials, light condition and storage temperature on MAP storage of chicon. J. Bio-Environ. Cont. 14:69-75
  2. Chung, D.S., Y.P. Hong, and Y.S. Lee. 2006. Effects of modified atmosphere film packaging application and controlled atmosphere storage on changes of quality characteristics in 'Hongro' and 'Gamhong' apples. Kor. J. Hort. Sci. Technol. 24(1):48-55
  3. Hwang, H.J., C.G. An, J.S. Sim, B.M. Chong, C.W. Rho, G.W. Song, C.S. Lim, J.M. Lim, and J.L. Cho. 2005. Comparison of storage life of several sweet pepper varieties. Korean Society For Horticultural Science 23(suppl. 1):68
  4. Herregods, I.r. M. 1971. The effect of some factors on witloof during storage. Acta Hort. (ISHS) 20:36-42
  5. Hyodo, H., H. Kuroda, and S.F. Yang. 1978. Induction of phenylalanine ammonia-lyase and increase in phenolics in lettuce leaves in relation to the development of russet spotting caused by ethylene. Plant Physiology 62:31-35 https://doi.org/10.1104/pp.62.1.31
  6. Lee, J.S., J.W. Choi, D.S. Chung, and C.I. Lim. 2005. Effects of lettuce (Lactuca sativa L.) cultivars and cultivation methods on growth, quality, and shelf-life. Kor. J. Hort. Sci. Technol. 23:12-18
  7. Kang, H.M., I.E. Choi, and I.S. Kim 2008. Effect of cultural regions or methods on postharvest physiological characteristics and qualities of paprika fruits. Journal of Bio-Environmental Control 18: - (in Korean)
  8. Kang, H.M., K.W Park, and M.E. Saltveit. 2002. Elevated growing temperatures during the day improve the postharvest chilling tolerance of greenhouse-grown cucumber (Cucumis sativus) fruit. Postharvest Biology and Technology 24:49-57 https://doi.org/10.1016/S0925-5214(01)00129-6
  9. Kays, J.S. 1991. Postharvest physiology of perishable plant products. AVI Publishing, New York. USA
  10. Kays, J.S. and E.R. Paull. 2004. Postharvest Biology. Exon Press, Athens, GA. USA
  11. Nam, H.S., N.W. Kim, Y.O. Choi, K.S. Youn, and S.R. Shin. 2005. Changes on the physical properties and components of export eggplants according to cultivar and harvesting season. Kor. J. of Food Preservation 9:287-297
  12. Park, K.W 1996. Cultivation and use of herb. Press of Korea Univ. Seoul
  13. Park, K.W., H.M. Kang, and C.H. Kim. 2000. Comparison of storability on film sources and storage temperature for fresh Japanese mint in MA storage. J. BioEnviron. Con. 9(1):40-46(in Korean)
  14. Rubatzky, V. and M.E. Saltveit. Chicory. In the commerical storage of fruit, vegetable, and florist and nursery stocks (Agricultural Handbook Number 66). eds. Gross K.c., C.Y. Wang, and M.E. Saltveit. Beltsvill MD
  15. Suslow, T.V. and M. Cantwell. 1996. Tomato. website at http://postharvest.ucdavis.eduIProducelProduceFacts/ Veg/tomato.shtml
  16. Yang, E.M., K.W. Park, and H.M. Kang. 2007. Comparison of storability of fresh parsley grown in different seasons in MA storage. Journal of Bio-Environmental Control 16:67-71(in Korean)