Quality Maintenance of Oak Mushroom during Modified Atmosphere Storage as Affected by Packaging Materials under Various Temperatures

저장온도와 포장재에 따른 표고버섯의 MA 저장 중 품질변화

Cho, Sun-Duk;Lee, Seung-Koo;Kim, Gun-Hee
조순덕;이승구;김건희

  • Published : 20081200

Abstract

Appropriate storage temperature and film material were investigated to extend storability of oak mushroom (Lentinus edodes (Berk.) Sing.) which has a high respiration rate and continued growth after harvest. Weight loss of the oak mushroom in the modified atmosphere packaging (MAP) was only 2-8%, whereas oak mushrooms that were stored without film packaging ranged 62-85% indicating that MAP was an effective method for preventing weight loss. No significant differences in weight loss were observed among the film materials used for storage. Gas compositions inside the package changed rapidly during the early stages of storage, and the kinetics of O2 and CO2 within the pouches depended upon the film material and the storage temperature. The CO2 concentration inside the film package increased to 33% in packages stored at 20℃ when polyethylene (PE) and ceramic films were used to seal the package, but only by 27% when ethylene vinyl acetate (EVA) film was used. In addition, the hardness of the mushroom continuously decreased with storage time, and ethanol production in the tissue increased as storage time and temperature increased. However, changes in the color and sugar alcohol contents showed little differences among the treatments. The results indicate that oak mushrooms should be stored using a combination of low temperature and EVA film to preserve optimum quality.

표고버섯을 대상으로 품질저하를 최소화시키기 위한 최적 처리 조건을 확립하고자 이에 관한 연구를 수행하였다. MA저장시 중량감모율은 저장 온도별 2~8%였으나 포장되지 않은 대조구에서는 62~85%로 MA저장이 중량감소를 억제하는데 효과를 보였다. 표고버섯의 경도 변화에서도 비슷한 양상을 보였는데, MA조건 처리구에서는 저장 초기의 경도를 저장 후기까지 계속 유지하였으나, 대조구에서는 경도가 급격하게 증가하여 단단해진 것을 확인할 수 있었다. 포장내부의 CO2 농도 변화는 포장재 종류에 따라 차이를 보였는데, 10℃에서는 PE와 ceramic film이 높았으며, 나머지 저장온도에서는 ceramic film이 가장 높았다. EVA film은 각 온도별로 가장 낮은 CO2 농도를 보였으며 이는 이취 발생과 관계가 있어 조직 내 에탄올 함량 조사결과와 비슷한 경향을 나타내었다. 포장재별로는 각 저장 온도에서 EVA가 가장 우수했고, PE와 ceramic film은 비슷한 양상을 보였는데, 산소투과도가 가장 높은 EVA에서 이취발생이 가장 적었다. 따라서, 표고버섯의 수확 후 품질유지와 유통기간 연장을 위해서는 품온을 최대한 낮추어 0℃의 저온에 저장하고 산소투과율이 높은 EVA film을 이용하여 MA 저장하는 것이 가장 적합하다고 생각된다.

Keywords

References

  1. Braaksma, A., P.V.D. Meer, and D.J. Schaap. 1996. Polyphosphate accumulation in the sensing mushroom Agaricus bisporus. Postharvest Biol. Technol. 8:121-127 https://doi.org/10.1016/0925-5214(96)00066-X
  2. Briones, G.L., P. Varoquaux, G. Bureau, and B. Pascat. 1993. Modified atmosphere packaging of common mushroom. Intl. J. Food Sci. Technol. 28:57-68 https://doi.org/10.1111/j.1365-2621.1993.tb01251.x
  3. Briones, G.L., P. Varoquaux, Y. Chambroy, J. Bouquant, G. Bureau, and B. Pascat. 1992. Storage of common mushroom under controlled atmospheres. Intl. J. Food Sci. Technol. 27:493-505 https://doi.org/10.1111/j.1365-2621.1992.tb01216.x
  4. Burton, K.S. 1998. Modified atmosphere packaging-a new technology for extending mushroom storage-life. Mushroom J. 183:510
  5. Cameron, A.C., W. Boylan-Pett, and J. Lee. 1989. Design of modified atmosphere packaging systems: Modeling oxygen concentrations within sealed packages of tomato fruits. J. Food Sci. 54:1413-1416 https://doi.org/10.1111/j.1365-2621.1989.tb05123.x
  6. Hammond, J.B.W. 1980. The composition of fresh and stored oyster mushrooms (Pleurotus ostreatus). Phytochemistry 19: 2565-2568 https://doi.org/10.1016/S0031-9422(00)83919-9
  7. Han, D.S., B.H. Ahn, and H.K. Shin. 1992. Modified atmosphere storage for extension of shelf life of Oyster mushroom and Shiitake. Kor. J. Food Sci. Technol. 24:376-381
  8. Hwang, S.H., S.J. Kim, S.R. Shin, N.W. Kim, and K.S. Youn. 2005. Effect of binding agents on physicochemical quality characteristics of granule prepared by Lentinus edodes. Kor. J. Food Preserv. 12:572-577
  9. Jeong, C.S., J.N. Park, J.H. Kyoung, J.P. Kang, J.M. Won, S.J. Lee, T.S. Jo, and B.J. Ahn. 2007. Effects of functional tray in MA packaging on the absorption of ethylene, odor compounds, and quality of broccoli florets. Kor. J. Hort. Sci. Technol. 25:1-5
  10. Kang, M.Y., S.Y. Kim, H.J. Yun, and S.H. Nam. 2004. Antioxidative activity of the extracts from browned oak mushroom (Lentinus edodes) with unmarketable quality. Kor. J. Food Sci. Technol. 36:648-654
  11. Kim, J.S., R.W. Joo, and S.I. Choi. 2007. An economic analysis of oak mushroom cultivation in Korea. J. Kor. For. Soc. 96:401-407
  12. Lee, D.W. 1994. Effect of modified atmosphere packaging for keeping freshness and increasing storability. Packaging Information. January. p. 78-85
  13. Lee, S.E., D.M. Kim, and K.H. Kim. 1991. Changes in quality of Shiitake mushroom (Lentinus edodes) during modified atmosphere storage. Kor. J. Food Sci. Technol. 20:133-138
  14. Minamida, T., T. Nishikawa, and K. Ogata. 1980. Influence of $CO_2$ and $O_2$ on the keeping freshness of Shiitake (Lentinus edodes (Berk.) Sing.) after harvest. Nippon Shokuhin Kogyo Gakkaishi. 27:505-510 https://doi.org/10.3136/nskkk1962.27.10_505
  15. Nerin, C., A.R. Tornes, C. Domeno, and J. Cacho. 1996. Absorption of pesticides on plastic films used as agricultural soil covers. J. Agric. Food Chem. 44:4009-4014 https://doi.org/10.1021/jf960326k
  16. Park, Y.M., S.W. Park, and S.J. Hong. 2003. Effects of vacuum packaging and shelf temperature on the quality changes of golden mushroom (Flammulina velutipes) during simulated shipment and marketing. Kor. J. Hort. Sci. Technol. 21: 294-299
  17. Roy, S., R.C. Anantheswaran, and R.B. Beelman. 1995. Fresh mushroom quality as affected by modified atmosphere packaging. J. Food Sci. 60:334-340 https://doi.org/10.1111/j.1365-2621.1995.tb05667.x
  18. Silva, F.M., K.V. Chau, J.K. Brecht, and S.A. Sargent. 1999. Modified atmosphere packaging for mixed loads of horticultural commodities exposed to two postharvest temperatures. Postharvest Biol. Technol. 17:1-9 https://doi.org/10.1016/S0925-5214(99)00026-5
  19. Son, M.H., S.Y. Kim, J.U. Ha, and S.C. Lee. 2003. Texture properties of surimi gel containing shiitake mushroom (Lentinula edodes). J. Kor. Soc. Food Sci. Nutr. 32:859-863 https://doi.org/10.3746/jkfn.2003.32.6.859
  20. Yamashita, I., T. Takahashi, T. Shimoda, M. Kikuchi, and S. Shibata. 1987. Changes in some chemical characteristics in Shiitake mushroom during modified atmosphere packaging storage and on exposure to air. Nippon Shokuhin Kogyo Gakkaishi. 34:834-839 https://doi.org/10.3136/nskkk1962.34.12_834