Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Effects of modified atmosphere packaging (MAP) and vaporized ethyl pyruvate (EP) treatment for the shelf life of 'Seolhyang' strawberries

딸기 '설향' 품종의 MAP 및 ethyl pyruvate 처리의 유통기한 연장 효과 연구

  • Kim, Jinse (Department of Agricultural Engineering, National Institute of Agricultural Sciences, RDA) ;
  • Park, Jong Woo (Department of Agricultural Biology, National Institute of Agricultural Sciences, RDA) ;
  • Park, Seok Ho (Department of Agricultural Engineering, National Institute of Agricultural Sciences, RDA) ;
  • Choi, Dong Soo (Department of Agricultural Engineering, National Institute of Agricultural Sciences, RDA) ;
  • Kim, Yong Hoon (Department of Agricultural Engineering, National Institute of Agricultural Sciences, RDA) ;
  • Lee, Soo Jang (Department of Agricultural Engineering, National Institute of Agricultural Sciences, RDA) ;
  • Park, Chun Wan (Department of Agricultural Engineering, National Institute of Agricultural Sciences, RDA) ;
  • Lee, Jung Soo (Postharvest Research Division, Horticultural and Herbal Science, RDA) ;
  • Cho, Byoung-Kwan (Department of Biosystems Machinery Engineering, College of Agricultural and Life Science, Chungnam National University)
  • 김진세 (농촌진흥청 국립농업과학원 농업공학부) ;
  • 박종우 (농촌진흥청 국립농업과학원 농업생물부) ;
  • 박석호 (농촌진흥청 국립농업과학원 농업공학부) ;
  • 최동수 (농촌진흥청 국립농업과학원 농업공학부) ;
  • 김용훈 (농촌진흥청 국립농업과학원 농업공학부) ;
  • 이수장 (농촌진흥청 국립농업과학원 농업공학부) ;
  • 박천완 (농촌진흥청 국립농업과학원 농업공학부) ;
  • 이정수 (농촌진흥청 국립원예특작과학원 저장유통과) ;
  • 조병관 (충남대학교 바이오시스템공학과)
  • Received : 2017.03.08
  • Accepted : 2017.05.01
  • Published : 2017.06.30
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Abstract

We have studied the technology to extend the storage period of 'Seolhyang' strawberries using modified atmosphere package (MAP) and ethyl pyruvate (EP) treatment for domestic distribution and export. The selected ripe strawberries harvested on December 28, 2016 at the Sancheong farmhouse were transported to the laboratory for 2 h and tested. After a day's precooling at $4^{\circ}C$, the strawberries were divided into seven experimental groups. These groups were control, active MAP using low density polyethylene (LDPE), active MAP using polyamide (PA), active MAP using PA with EP treatment, passive MAP using LDPE, passive MAP using PA and passive MAP using PA with EP treatment. Quality analysis was carried out every 4 days during the storage period of 16 days. During the storage period of 16 days, MAP decreased from 3.5% to less than 1.1% in weight loss ratio compared with control, and decreased from 36% to less than 7% in fungal incidence. In the case of fungi in the EP treatment group, hyphae did not grow on the outside of the strawberry but grew to the inside. This tendency was similar to that in the low oxygen and high carbon dioxide environment of the MAP, the mycelium of the fungus did not grow outside of the strawberry. Fungi are the biggest problem in the distribution and export of strawberries, and these results suggest that MAP alone could inhibit mold and increase shelf life.

본 연구에서는 수분투과도가 높은 PA 필름과 낮은 LDPE 필름을 이용한 MAP의 감모율 및 곰팡이 발생률 차이, EP훈증 처리구와 미처리구의 곰팡이 발생률 차이를 분석하고자 하였고, MAP의 경우 active와 passive 기체조성을 하여 그 효과 차이를 알아보고자 하였다. PA 필름과 LDPE 필름 포장시 감모율의 차이는 통계적으로 차이가 없는 수준으로 LDPE가 낮았으나, LDPE 필름 내부에서 결로가 발생하여 수출 포장에서는 박스 젖음을 최소화 할 수 있는 PA 필름이 적정함을 확인하였다. 감모율이 높을 경우 당도와 산도가 높게 나타나기 때문에 MAP 대비 대조구에서 당도와 산도가 약간 높게 측정되었다. 초기 $CO_2$ 농도를 20%이상으로 active MAP 처리시 경도가 높게 유지되는 효과가 있으므로, passive MAP보다 유통에 유리할 것이라 판단된다. 딸기의 저장 중 발생한 곰팡이는 대부분 잿빛곰팡이병원균인 B. cinerea임을 배양을 통한 포자의 형상으로 확인하였으며, MAP에서는 기체조성이 호기성인 곰팡이의 성장을 방해하여 딸기 내부로만 균사가 자라는 것을 확인하였다. EP 처리도 딸기 외부의 균사 성장을 억제할 뿐 내부의 성장을 막지는 못하기 때문에, EP처리 없이 MA 포장만 사용할 경우와 차이가 없음을 확인하였다. 대조구 및 MA 저장 딸기의 곰팡이 균사는 손자국에서 시작되는 것을 확인하였으며, 수확과 선별시 수확하는 딸기가 B. cinerea 포자에 오염되지 않도록 주의한다면, 곰팡이 발생을 더욱 억제할 수 있으리라 예상된다. 이러한 결과에 비추어볼 때 감모율을 낮추고, 경도를 높게 유지하며, 결로와 곰팡이 발생도 억제할 수 있는 PA 필름을 이용한 active MA가 딸기의 유통에서 최적의 포장방법이라 판단된다.

Keywords

References

  1. Nam MH, Kim HS, Lee WK, Gleason ML, Kim HG (2011) Control efficacy of gray mold on strawberry fruits by timing of chemical and microbial fungicide applications. Kor J Hort Sci Technol, 29, 151-155
  2. Ahn SE, Lee AY, Wang MH, Hwang YS (2014) Increase of strawberry fruit shelf-life through preharvest spray of calcium-chitosan and post-harvest treatment with high pressure $CO_2$. Kor J Hort Sci Technol, 32, 636-644
  3. Smith RB, Skog LJ (1992) Postharvest carbon dioxide treatment enhances firmness of several cultivars of strawberry. Hort Science, 27, 420-421
  4. Hwang YS, Min JH, Kim DY, Kim JG, Huber DJ (2012) Potential mechanisms associated with strawbery fruit firmness increases mediated by elevated p$CO_2$. Hortic Environ Biotechnol, 53, 41-48 https://doi.org/10.1007/s13580-012-0097-0
  5. Kim JG, Choi JW, Park MH (2016) Effect of different days of postharvest treatment and $CO_2$ concentrations on the quality of 'Seolhyang' strawberry during storage. Korean J Food Preserv, 23, 12-19 https://doi.org/10.11002/kjfp.2016.23.1.12
  6. Park DS, Jeong CS (2015) Effect of $CO_2$ and $ClO_2$ gas pre-treatment for maintain shelf-life of summer strawberries. Kor J Hort Sci Technol, 33, 705-711
  7. Bozkurt F, Tornuk F, Toker OS, Karasu S, Arici M, Durak MZ (2016) Effect of vaporized ethyl pyruvate as a novel preservation agent for control of postharvest quality and fungal damage of strawberry and cherry fruits. LWT-Food Sci Technol, 65, 1044-1049 https://doi.org/10.1016/j.lwt.2015.09.043
  8. Nielsen T, Leufven A (2008) The effect of modified atmosphere packaging on the quality of Honeoye and Korona strawberries. Food Chem, 107, 1053-1063 https://doi.org/10.1016/j.foodchem.2007.09.025
  9. Park JW, Kim JS, Park SH, Choi DS, Choi SR, Kim YH, Lee SJ, Park CW, Lee JS (2016) Development of pallet-scale modified atmosphere packaging for 'Tabor' tomatoes. Korean J Food Preserv, 23, 614-622
  10. Durak MZ, Churey JJ, Gates M, Sacks GL, Worobo RW (2012) Decontamination of green onions and baby spinach by vaporized ethyl pyruvate. J Food Prot, 75, 1012-1022 https://doi.org/10.4315/0362-028X.JFP-12-008
  11. Tornuk F, Durak MZ (2015) A novel method for fresh-cut decontamination: efficiency of vaporized ethyl pyruvate in reducing Staphylococcus aureus and Escherichia coli O157:H7 from fresh parsley. J Food Process Preserv, 39, 1518-1524 https://doi.org/10.1111/jfpp.12377
  12. Lee SH, Yoon DW, Jung JY, Lee KJ, Kim SJ, Lee EJ, Kang EH, Jung KH,Lee SY, Lee SY, Kim JH, Shin C, Shim JJ, In KH, Yoo SH, Kang KH (2006) The effects of ethyl pyruvate on lipopolysaccharide-induced acute lung injury. Tuberculosis and Respiratory Diseases, 61, 374-383 https://doi.org/10.4046/trd.2006.61.4.374
  13. Kim JS, Park JW, Park SH, Choi DS, Choi SR, Kim YH, Lee SJ Park CW, Lee JS, Cho BK (2016) Study of pallet scale modified atmosphere packaging films for reducing water condensation. J Biosystems Eng, 41, 98-107 https://doi.org/10.5307/JBE.2016.41.2.098
  14. Geysen S, Verlinden BE, Conesa A, Nicolai BM (2005) Modelling respiration of strawberry (cv. 'Elsanta') as a function of temperature, carbon dioxide, low and superatmospheric oxygen concentration. Information and Technology for Sustainable Fruit and Vegetable Production FRUTIC 05, September 12-16, Montpellier, France
  15. Mangaraj S, Goswami TK, Mahajan PV (2009) Applications of plastic films for modified atmosphere packaging of fruits and vegetables: a review. Food Eng Rev, 1, 133-158 https://doi.org/10.1007/s12393-009-9007-3
  16. Fonseca SC, Oliveira FAR, Brecht JK (2002) Modelling respiration rate of fresh fruits and vegetables for modified atmosphere packages: a review. J Food Eng, 52, 99-119 https://doi.org/10.1016/S0260-8774(01)00106-6
  17. Belay ZA, Caleb OJ, Opara UL (2016) Modelling approaches for designing and evaluating the performance of modified atmosphere packaging (MAP) systems for fresh produce: a review. Food Packaging and Shelf life, 10, 1-15 https://doi.org/10.1016/j.fpsl.2016.08.001
  18. Atkins P, de Paula J (2006) Physical Chemistry: thermodynamics, structure and change. 8th edition, WH Freeman, Oxford, UK, p 756
  19. Salvador ML, Jaime P, Oria R (2002) Modelling of $O_2$ and $CO_2$ exchange dynamics in modified atmosphere packaging of burlat cherries. J Food Sci, 67, 231-235 https://doi.org/10.1111/j.1365-2621.2002.tb11389.x
  20. Gross KC, Wang CY, Saltveit M (2016) The Commercial Storage of Fruit, Vegetables, and Florist and Nursery Stocks. USDA Agriculture Handbook number 66, Agriculture Research Service, Washington DC, USA, p 7-9
  21. Pitt JI, Hocking AD (1997) Fungi and Food Spoilage 2nd ed, Blackie academic and professional, London, UK, p 80-81
  22. Kim DR, Jeon CW, Kwak YS (2015) Studies on Botrytis cinerea density in packing shed and gray mold incidence following storage-temperature in exported strawberry. Korean J Pestic Sci, 19, 295-300 https://doi.org/10.7585/kjps.2015.19.3.295

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