KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY (한국포장학회지)

Korea Society of Packaging Science and Technology (한국포장학회)
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Application of Different Packaging Methods and Materials for Comparing Freshness of Lettuce (Lactuca sativa L.) harvested in Summer Season

고온기 결구상추의 포장재와 포장방법 적용에 따른 선도 비교

  • Lee, Jung-Soo (National Institute of Horticultural & Herbal Science, Rural Development Administration) ;
  • Choi, JeeWon (National Institute of Horticultural & Herbal Science, Rural Development Administration) ;
  • Kim, Jin Se (National Academy of Agricultural Science, RDA) ;
  • Park, Me Hea (National Institute of Horticultural & Herbal Science, Rural Development Administration) ;
  • Choi, HyunJinn (National Institute of Horticultural & Herbal Science, Rural Development Administration) ;
  • Lee, YounSuk (Yonsei University) ;
  • Kim, Dong Eok (Korea National College of Agriculture and Fisheries) ;
  • Hong, YuunPo (National Institute of Horticultural & Herbal Science, Rural Development Administration) ;
  • Kim, Ji-Gang (National Institute of Horticultural & Herbal Science, Rural Development Administration)
  • Received : 2017.08.30
  • Accepted : 2017.11.20
  • Published : 2017.12.31
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Abstract

Effects of different packaging methods for maintaining the shelf life and postharvest quality of iceberg lettuce (Lactuca sativa L.) were studied after harvesting in summer season. Lettuce heads were packaged in plastic crate with or without different films such as (A) Individual lettuce head sealed packaging with linear low density polyethylene (LLDPE) film; (B) Packaging lettuce head in plastic crate and wrapped with LLDPE film; (C): Individual lettuce head sealed packaging with perforated high density polyethylene (HDPE) film; (D) Packaging lettuce head in plastic crate and wrapped with perforated HDPE; and (E) Packaging lettuce head in plastic crate without any film (control), and stored at $2^{\circ}C$ for 35 days. Several quality parameters such as fresh weight loss, SPAD (soil & plant analyzer development) meter value, respiration rate, moisture content and appearance of lettuce were investigated. The lettuce wrapped with individually-sealed LLDPE film showed the lowest weight loss and the highest SPAD value rendering the best appearance index among the treataments throughout the three-week storage period at $2^{\circ}C$. Extending the freshness of iceberg lettuce during low temperature storage will definitely increase the salability potential in the domestic market even during summer season.

국내산 결구상추의 하절기 생산 제한을 수확 후 포장방법개선으로 공급을 효과적으로 유지하고자 하였다. 본 연구에서는 고온기 결구상추의 유통 및 저장 현황을 조사하였으며, 유통 현황과 기존의 결과를 근거하여 개선 가능한 포장방법을 모색하였다. 결구상추의 '유레이크'품종을 이용하여 포장재별 포장 방법에 따라 저장 중 생체중량 변화, SPAD 지수 등을 조사하였다. 포장방법은 관행적인 무포장의 플라스틱 재질 농산물 유통상자에 적재하는 저장방법에 LLDPE와 HDPE 필름 포장재를 이용하여 개별 및 박스 단위 방법으로 포장하여 저장온도 $2^{\circ}C$에서 하였다. 결구상추 저장 시 포장 방법 및 포장재에 따라서 개별적으로 LLDPE 필름으로 랩 포장한 것이 저장 21일까지 외관품위 등에서 비교적 양호한 상품성을 유지하였다. 또한 생체중량 감소율이 다른 처리구보다 적었고, 저장 중 SPAD나 색상변화 정도가 적은 경향을 보였다. 그러나 개별 포장한 결구상추의 결구내 수분감소나 경도에서는 처리별 차이를 확인하기는 어려웠다. 결구상추는 개별 포장하여 단기간 동안의 선도를 유지할 수 있었으나 개별 포장에 따른 기체 조성 변화에 큰 영향이 없어 MA 효과를 언급하기는 어려웠다. 고온기 생산성이 낮은 시기에 결구상추의 단경기 공급을 위해 개별적인 랩 포장으로 포장방법을 개선함으로써 저장성 연장에 대한 가능성을 확인하였다.

Keywords

References

  1. Lee, J. S., Choi, J. W., Chung, D. S., Lim, C. I., Seo, T. C., Do, G. L., and Chun, C. 2005. Effects of lettuce (Lactuca sativa L.) cultivars and cultivation methods on growth, quality, and shelf-life. Korean J. Hortic. Sci. Technol. 23: 12-18.
  2. Oh, S. Y., Yu, Y. G., and Lee, G. J. 2009. Economical management of summer season harvest on cut rose (Rosa hyrida L.). Korean J. Hortic. Sci. Technol. 27: 130.
  3. Bark, D. E., Yoon, Y. N., Woo, Y. J., Cheung, G. H., Hwang, S. B., Park, S. H., Jeong, J. Y., Shin, C., Choi, D. S., Lim, J., Park. S. E., and Lee, J. S. 2015. Freshness comparison of lettuce (Lactuca sativa L.) in accordance with storage and packaging method on high-temperature period. Korean J. Packag. Sci. Technol. 21: 1-6. https://doi.org/10.20909/kopast.2015.21.1.1
  4. 농림부 통계 자료 농림축산식품부. 2016. 2015 시설채소 온실현황 및 채소류 생산실적, 농림축산식품부, 세종, 한국.
  5. 한국농촌경제연구원. 2015. 농업전망 2015 수급안정방안, 현장에서 찾는다, 한국농촌경제연구원, 서울, 한국.
  6. Rural Development Administration. 2013. Western vegetables. RDA. Suwon, p.24-60.
  7. Cho, H. Y., Kim, M. Y., Kwon, S. Y., and Yoon, J. H. 2013. Current status and suggestions for improvement of school meal service support centers. Kor. J. Food Preserv. 30: 139-165.
  8. Jung, I. K., Kim, H. C., Lee, J. T., Kim, Y., and Kim, K. M. 2011. A study on the utilization, recognition, and satisfaction of local food in school food service. Korean J. Commun. Living Sci. 10: 99-100.
  9. Jang, M. S. and Lee, J. S. 2017. Effects of packaging methods on the freshness during storage of lettuce harvested in summer season of Korea. Kor. J. Food Preserv. 24: 159-167. https://doi.org/10.11002/kjfp.2017.24.2.159
  10. Gross, K., Wang, C. Y., and Saltveit, M. E. 2002. Handbook, The commercial storage of fruits, vegetables, and florist and nursery stocks. United States Department of Agriculture, Washington, USA. p 66.
  11. Kim, B. S., Kim, D. C., Lee, S., Nahm, G. B., and Jeong J. W. 1995. Freshness prolongation of crisphead lettuce by vacuum cooling and cold-chain system. Kor. J. Food Preserv. 27: 546-554.
  12. Youn, A. R., Kim, B. S., Kwon, K. H., and Cha, H. S. 2007. Quality evaluation and residual pesticides of lettuce during growth after transplanting. Kor. J. Food Preserv. 14: 124-130.
  13. Bolin, H. R. and Huxsoll, C. C. 1991. Effect of preparation procedures and storage parameters on quality retention of salad-cut lettuce. J. Food Sci. 56: 60-62. https://doi.org/10.1111/j.1365-2621.1991.tb07975.x
  14. Beuchat, L. R. and Brackett, R. E. 1990. Survival and growth of Listeria monocytogenes on lettuce as influenced by shredding, chlorine treatment, modified atmosphere packaging and temperature. J. Food Sci. 55: 755-758. https://doi.org/10.1111/j.1365-2621.1990.tb05222.x
  15. Shankargouda, P., Chikkasubbanna, V., and Narayana, J. V. 1989. Effect of preharvest sprays of triacontanol on the storage life of lettuce. J. Food Sci. Technol. 26: 156-157.
  16. Aharoni, N. and Yehoshua, S. B. 1973. Delaying deterioration of romaine lettuce by vacuum cooling and modified atmosphere produced in polyethylene packages. J. Am. Soc. Hort. Sci. 98: 464-468.
  17. Lee, J. S., Lee, H. E., Lee, Y. S., and Chun, C. H. 2008. Effect of packaging methods on the quality of leaf lettuce. Kor. J. Food Preserv. 15: 630-634.
  18. Brecht, J. K., Sherman, M., and Allen, J. J. 1986. Film wrapping to improve the postharvest quality of Florida head lettuce. Proc. Fla. State Hort. Soc. 99: 135-140.
  19. Hunter Lab. 2001. Hunter L,a,b versus CIE 1976 L*a*b*. Application note: 13; 1-4
  20. Jeong, J. C., Woo, P. K., and Joon, Y. Y. 1990. Influence of packaging with high-density polyethylene film on the quality of leaf lettuce (Lactuca sativa L. cv. Cheongchima) during low temperature storage. Korean J. Hortic. Sci. Technol. 31: 210-224.
  21. Kim, B. S., Kim, D. C., Lee, S. E., Nahm, G. B., and Jeong, J. W. 1995. Freshness prolongation of crisphead lettuce by vacuum cooling and cold-chain system. Korean J. Food Sci. Technol. 27: 546-554.
  22. Kader, A. A., Zagory, D., Kerbel, E. L., and Wang, C. Y. 1989. Modified atmosphere packaging of fruits and vegetables. Crit. Rev. Food Sci. Nutr. 28: 1-30. https://doi.org/10.1080/10408398909527506
  23. Lee, J. S., Chung, D. S., Lee, J. U., Lim, B. S., Lee, Y. S., and Chun, C. H. 2007. Effects of cultivars and storage temperatures on shelf-life of leaf lettuces. Kor. J. Food Preserv. 14: 345-350.
  24. Lee, J. S., Chung, D. S., Choi, J. W., Jo, M., Lee, Y. S., and Chun, C. H. 2006. Effects of storage temperature and packaging treatment on the quality of leaf lettuce. Kor. J. Food Preserv. 13: 8-12.
  25. Kays, S. J. 1991. Postharvest physiology of perishable plant products. AVI Publishing, N.Y. USA.
  26. Hong, S. J. and Lee, S. K. 1996. Changes in endogenous putrescine and the relationship to the ripening of tomato fruits. Korean J. Hortic. Sci. Technol. 37: 33-36.
  27. Kang, Y. J., Jeong, H. C., Jeong, M. C., and Kim, D. M. 2008. Effect of maturity at harvest on the quality of head lettuce during storage. Korean J. Hortic. Sci. Technol. 26: 272-276.
  28. Park, J. K., Chun, J. K., Lee, S. K., and Kim, K. H. 1989. Automatic measurement of respiration rate and weight loss during storage of citrus fruits. Korean J. Food Sci. Technol. 21: 387-390.
  29. Lee, J. S. and Lee, Y. S. 2012. Effect of packaging methods on postharvest quality of Tah Tasai Chinese cabbage (Brassica campestris var. narinosa) baby leaf vegetable. Kor. J. Food Preserv. 19: 1-6. https://doi.org/10.11002/kjfp.2012.19.1.001
  30. In, B. C., Kim, J. K., Hataitip, N., and Lee, J. S. 2010. Effects of harvest seasons on quality and microbial population of fresh-cut iceberg lettuce. J. Bio-Environ. Control 19: 343-412.
  31. Jung, J. Y., Shin, S. H., Choi, J. H., and Jeong, M. 2008. Browning and quality changes of fresh-cut iceberg lettuce by gas flushing packagings. Kor. J. Hortic. Sci. Technol. 26: 406-412.
  32. Hwang, S. J., Jang, S. W., Choi, J. H., and Ho, Q. S. 2003. Selection of standard example varieties for evaluation of plant morphological characters in DUS test of lettuce (Lactuca sativa L.) Korean J. Hortic. Sci. Technol. 21: 181-189.