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Investigation of Packaging of Fresh Jujube (Zizyphus jujuba) on Quality during Storage

농가에서 활용가능한 생대추의 저장조건 연구

  • Received : 2013.04.16
  • Accepted : 2013.06.07
  • Published : 2013.08.31

Abstract

The quality of fresh jujube (Zizyphus jujuba) fruit rapidly declines in the postharvest stage and thus the effective storage conditions for agricultural warehouses were investigated in this study. Fresh jujubes (~10 kg) were stored using five different storage methods: plastic box without further packaging as a control (C-PL), plastic box with hanji packaging (H-PL), plastic box with functional film packaging (F-PL), cardboard box with hanji packaging (H-CB), and cardboard box with functional film packaging (F-CB). The storage boxes were stored in a refrigerator ($0^{\circ}C$ and 80~90% RH), equipped with an ethylene gas scavenging device for 9 weeks and then the quality characteristics were analyzed. The control storage conditions of jujubes showed a substantial decline in quality with decreases in moisture content, hardness, and sugar content as well as increases in decay ratio and redness. Among the tested storage conditions, F-CB was most effective in terms of maintaining the quality of jujube fruit while maintaining firmness, weightlessness, ripening degree from redness and visible appearance. In conclusion, effective storage and packaging conditions during storage enabled maintenance of fruit quality of jujubes for 9 weeks.

생대추의 저장기간을 연장하기 위하여 그리고 농가에서 직접 활용 가능한 효과적인 저장방법을 찾기 위하여 70% 숙기를 가진 생대추를 $0^{\circ}C$ 온도와 80~90% 습도로 조절하고 에틸렌제거 장치가 설치된 저온저장고에서 플라스틱상자와 종이상자를 저장용기로 사용하고 한지와 기능성필름을 포장방법으로 사용하여 9주까지 저장하면서 이미지, 수분함량, 부패율, 경도, 색도 및 당도를 측정하였다. 대조군 시료의 경우 수분함량이 저장 전 69.2%에서 9주 저장 후에는 66.1%로 감소하였으며 기능성필름으로 포장한 시료의 경우 저장기간 동안 큰 변화를 나타내지 않았다. 부패과는 6주까지는 나타나지 않았으나 그 이후로는 지속적으로 증가하는 경향을 보였다. 대조군 시료의 경도는 지속적으로 감소하는 경향을 보였으나 종이상자에 기능성필름으로 포장한 시료의 경우 저장 기간 동안 큰 변화가 없었다. 저장 기간 동안 적색도는 대부분의 시료에서는 천천히 증가하는 경향을 나타냈으며 당도는 다소 감소하는 경향을 나타냈다. 본 연구결과 70% 숙기를 가진 생대추를 9주까지 품질의 변화 없이 저장하기 위해 가장 효과적인 저장방법으로는 저장용기로 플라스틱상자보다는 표면에 노출되는 대추의 양을 줄일 수 있는 종이상자를 사용하는 것이 포장방법으로 한지보다는 기능성필름을 사용하는 것이었다. 결론적으로 농가에서 활용가능한 생대추의 저장방법으로 온도, 습도, 에틸렌이 조절된 저온저장고에서 종이상자와 기능성필름을 가볍게 덮은 조건에서 생대추의 저장을 9주까지 품질을 유지하면서 저장할 수 있었다.

Keywords

References

  1. Choi KS. 1990. Changes in physiological and chemical characteristics of jujube fruits (Zizyphus jujuba Miller) var. Bokjo during maturity and postharvest ripening. J Resource Development 9: 47-53.
  2. Kwon SH, Cho KY, Kim SY, Kim MJ. 1993. Application of Ziziphus jujube fruit for dietary life. J Food Sci & Technol 5: 1-14.
  3. Okamura N, Nohara T, Yagi A, Nishioka I. 1981. Studies on the constituents of Zizyphi Fructus. III. Structures of dammarane-type saponins. Chem Pharm Bull 29: 676-683. https://doi.org/10.1248/cpb.29.676
  4. Yagi A, Okamura N, Haraguchi Y, Noda K, Nishioka I. 1978. Studies on constituents of Zizyphi frutus. I. Structure of three new p-coumaroylates of alphitolic acid. Chem Pharm Bull 26: 1798-1802. https://doi.org/10.1248/cpb.26.1798
  5. Abbas MF, Saggar RAM. 1989. Respiration rate, ethylene production and certain chemical changes during the ripening of jujube fruits. J Horticultural Science & Biotechnology 64: 223-226. https://doi.org/10.1080/14620316.1989.11515948
  6. Choi C, Chun SS, Cho YJ, Woo HS, Kim TW, Han YH. 1994. Separation and purification of endo-polygalacturonase from Korean jujube. Agric Chem Biotechnol 37: 243-247.
  7. Seo CH, Shin SR, Jeung YJ, Kim KS. 1997. Changes in polygalacturonase during softening of persimmon and jujube fruits. J Korean Soc Food Sci Nutr 26: 180-185.
  8. Song J, Lee KS, Knag HA, Chang KS. 1998. Storage stability of fresh jujube fruits (Zizyphus Jujuba MILLER). Korean J Food Sci Technol 30: 272-277.
  9. Kader AA, Li Y, Chordas A. 1982. Postharvest respiration, ethylene production, and compositional changes of Chinese jujube fruits. HortScience 17: 678-679.
  10. Gonzalez Urena A, Orea JM, Montero C, Jimenez JB, Gonzalez JL, Sanchez A, Dorado M. 2003. Improving postharvest resistance in fruits by external application of transresveratrol. J Agric Food Chem 51: 82-89. https://doi.org/10.1021/jf020663v
  11. Woo KS, Son SI, Jeong HS, Lee J, Lee HB. 2006. Effects of grape fruit stem extracts treatment on the storage property of fresh jujube (Zizyphus jujuba). J Korean Soc Food Sci Nutr 35: 192-198. https://doi.org/10.3746/jkfn.2006.35.2.192
  12. Zhao ZH, Liu MJ, Liu P, Liu XY, Dai L, Yang L, Tian SL. 2009. Effects of citric acid treatments on the postharvest fruit quality of Ziziphus jujuba Mill. 'LINYILIZAO'. Acta Hortic 840: 513-516.
  13. Li X, Zhang L, Wang X, Li Y. 2011. Effect of 1-MCP and $CaCl_2$ on quality of Chinese jujube stored at low temperature. Advanced de Materials Research 156-157: 367-370.
  14. Wen Y, Feng J, Ren X. 2007. Mechanism for prolonging cold storage life of Li jujube (Zizyphus jujuba Mill. cv. Lizao) fruit by heat air treatment. Nongye Gongcheng Xuebao 23: 24-29.
  15. Zhu Z, Zhang Z, Qin G, Tian S. 2010. Effects of brassinosteroids on postharvest disease and senescence of jujube fruit in storage. Postharvest Biol Technol 56: 50-55. https://doi.org/10.1016/j.postharvbio.2009.11.014
  16. Woo KS, Hwang IG, Jang KI, Kang TS, Lee HB, Jeong HS. 2008. Effects on storage property of fresh jujube treated with grape fruit stem extracts (GFSE) and fermented pollen (FP). J Korean Soc Food Sci Nutr 37: 1090-1094. https://doi.org/10.3746/jkfn.2008.37.8.1090
  17. Lee DS, An DS. 1998. Effect of packaging conditions on keeping quality of fresh jujube. Korean J Food Sci Technol 30: 461-467.
  18. Song J. 1997. Studies on storage stability of fresh jujube fruits (Zizyphus jujuba Miller). MS Thesis. Chungnam National University, Daejeon, Korea.
  19. An DS, Lee DS. 1997. Effect of maturity and storage temperature on preservation of fresh jujube. Korean J Food Sci Technol 29: 758-763.

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