KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY (한국포장학회지)

Korea Society of Packaging Science and Technology (한국포장학회)
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Development of Thin, Transparent Oxo-Biodegradable Film with Antibacterial and Freshness Agent

항균, 신선도 기능을 부여한 투명 산화생분해 필름 개발

  • Received : 2017.11.10
  • Accepted : 2017.12.13
  • Published : 2017.12.31
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Abstract

This article described the development of transparent antimicrobial oxo-biodegradable (AOB) film with the function of enhanced freshness of food by employing oxo-biodegradable masterbatch (MB) and antimicrobial MB together with organic metal salt, organic acid, or unsaturated fatty acid. Antibacterial test of the AOB film with the different contents of the antimicrobial MB resulted in the significant freshness extension of plum. Tensile strength and elongation rate of the AOB films before UV treatment were similar to those of polyethylene films used as control. The reduced mechanical properties of AOB film after UV treatment (340 nm) suggested that the AOB film could be degraded by oxo biodegradation. The developed AOB films can effectively prevent decomposition of food by providing antibacterial function and preserving freshness.

본 논문에서는 신선도 유지 기능을 부여한 새로운 형태의 산화생분해성 필름 개발에 관하여 서술하였다. 생분해 촉매제로 유기 금속염, 유기산, 불포화 지방산등을 함유한 산화생분해성 및 항균신선도기능을 부여한 M/B를 각각 제조한 후, 이를 플라스틱 레진에 첨가하여 항균 및 신선도 기능의 산화생분해 복합필름(AOB film)을 제작하였다. 제조된 항균신선도 A M/B의 항균력 시험은 진탕 플라스크 방법을 사용하여 농도별 시험을 실시하였다. A MB 5% 첨가한 AOB 필름은 별도로 필름 밀착법을 통해 제조하여 실험한 결과, 필름의 항균작용이 매우 우수함을 확인할 수 있었다. 자두를 대상으로 한 신선도 유지기능 평가 결과, A M/B 5% 첨가한 AOB 필름이 대조군 필름에 비하여 신선도 유지 효과가 우수하였다. 또한 산화생분해성을 평가하기 위하여, UV 340 nm로 처리한 필름의 인장강도 및 신장율을 측정한 결과, AOB 필름의 물성 감소율이 우수하였으며, 이는 산화생분해 특성을 갖는 것을 의미한다. 결론적으로 항균 및 신선도 기능의 산화생분해성(AOB) 복합필름은 식품 유통과정에서 발생할 수 있는 식품의 부패를 방지하는 측면에서 긍정적인 효과를 가져올 수 있을 것으로 판단되어진다.

Keywords

References

  1. Guillet, J. E. 1973. Polymers and Ecological Problems, Baum, B. and White, R. A. (eds.), Plenum Press, New York, pp. 45-60.
  2. Brown, K. T. 1993. Plastic Waste Management, Mustafa, N. (ed.) Marcel Dekker Inc., New York, pp. 1-35.
  3. Garcia, C., Hernandes, T., and Costa, F. 1992. Comparison of humic acids derived from city refuse with more developed humic acids. Soil Sci. Plant Nutr. 38: 339-346. https://doi.org/10.1080/00380768.1992.10416498
  4. You, Y. S., Oh, Y. S., Hong, S. H., and Choi, S. W. 2015. International trends in development, commercialization and market of bio-plastics. Clean Technol. 21: 141-152. https://doi.org/10.7464/ksct.2015.21.3.141
  5. Huag, J. H., Shetty, A. S., and Wang, M. S. 1990. Biodegradable plastics: A review. Adv. Polym. Technol. 10: 23-30. https://doi.org/10.1002/adv.1990.060100103
  6. Bloembergen, S., David, J., Geyer, D., Gustafson, A., Snook, J., and Narayan, R. 1993. Biodegradation and composting studies of polymeric materials. In: Biodegradable Plastics and Polymers., Doi, Y. and Fukuda, K. (eds.), Osaka, 601-609.
  7. Lee, S. I., Sur, S. H., Hong, K. M., Shin, Y. S., Jang, S. H. and Shin, B. Y. 2001. A study on the properties of fully biophotodegradable composite film. J. Inst. Industrial Technol. 29: 129-134.
  8. Ghung, M. S., Lee, W. H., You, Y. S., Kim, H. Y. and Park, K. M. 2003. Manufacturing multi-degradable food packaging films and their degradability. Korean J. Food Sci. Technol. 35: 877-883.
  9. Bloembergen, S., David, J., Geyer, D., Gustafson, A., Snook, J., and Narayan, R. 1993. Biodegradation and composting studies of polymers, Doi Y and Fukuda K (editor), 601-609.
  10. You, Y. S., Kim, Y. T., Park, D. S., and Choi, S. W. 2017. Development of oxo-biodegradable transparent bio films using biomass and biodegradable catalyst. Clean Technol. 23: 133-139.
  11. Lee, J. W., Hong, S. I., Son, S. M., and Ghang, Y. H. 2003. Korean J. Food Preserv. 10: 574-583.
  12. Vermeiren, L., Devileghere, F., Beest, M., Kruijf, N., and Debevere, J. 1999. Developments in the active packaging of offds. Trends Food Sci. Technol. 10: 777-786.
  13. You, Y. S. 2016. Trends of fresh-cut agricultural product packaging. The Monthly Packaging World, 281: 54-59.
  14. ASTM D3826-98. 1998. Standard practice for determining degradation end point in degradable polyethylene and polypropylene using a tensile test. American Society of Testing and Materials, Philadelphia, USA.
  15. ASTM G21-96. 1996. Standard practice for determining resistance of synthetic polymeric materials to fungi. Annual book of ASTM standards. American Society of Testing and Materials, Philadelphia, USA.
  16. Paik, J. S., Dhanasekharan, M., and Kelly, M. J. (1998) Antimicrobial activity of UV-irradiated nylon film for packaging applications. Packaging Technol. Sci. 11: 179-187. https://doi.org/10.1002/(SICI)1099-1522(199807/08)11:4<179::AID-PTS429>3.0.CO;2-J
  17. KFDA, 2001. Food codes. Korean Food and Drug Administration, Seoul, Korea. p. 28-60.
  18. ASTM D882-12. 2012. Standard test method for tensile properties of thin plastic sheeting. annual book of ASTM standards. American Society of Testing and Materials, Philadelphia, USA.