한국포장학회지 (KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY)

  • 제27권1호
  • /
  • Pages.1-8
  • /
  • 2021
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  • 1226-0207(pISSN)
  • /
  • 3058-2024(eISSN)
한국포장학회 (Korea Society of Packaging Science and Technology)
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DOI QR코드

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Zeolite/Zinc-polypeptide를 코팅한 폴리프로필렌필름의 항균 및 항진균 특성에 관한 연구

A Study on the Antibacterial and Antifungal Properties of Zeolite/Zinc-polypeptide Coated Polypropylene Film

  • 이학래 (연세대학교 패키징학과) ;
  • 고의석 (연세대학교 패키징학과) ;
  • 심원철 (연세대학교 패키징학과) ;
  • 김종서 (연세대학교 패키징학과) ;
  • 김재능 (연세대학교 패키징학과)
  • 투고 : 2021.03.16
  • 심사 : 2021.04.26
  • 발행 : 2021.04.29
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초록

본 연구는 기능성 항균 포장재를 신선식품에 적용하기 위한 연구로서 Zeolite/Zinc-polypeptide를 식품용 포장재 중 하나인 PP 필름에 코팅하여 항균 및 항진균성을 확인하였다. 이를 검증하기 위하여 Zeolite/Zinc-polypeptide를 PP 필름에 각각 5%, 10%, 15% 농도로 코팅하였으며, FESEM과 FT-IR 분석을 통해 분산된 Zeolite/Zinc-polypeptide의 코팅 여부를 확인하였다. 또한 항균 효과를 검증하기 위하여 대조군과 코팅 물질의 농도에 따른 필름의 항균 및 항진균성을 분석하였다. 코팅 필름의 표면 분석 결과 PP 필름의 표면에서 Zeolite/Zinc-polypeptide의 농도에 따라 코팅 액의 분포 크기가 불규칙하지만 넓게 나타났다. 또한 항균 효과에 따른 분석 결과 박테리아 균 중 하나인 E. coli에서 99.9%의 항균 효과를 확인하였으며, R. oryzae의 성장을 약 70% 억제하여 PP 필름 코팅 적용 후에도 Zeolite/Zinc-polypeptide가 E. coli와 R. oryzae에 대하여 항균 및 항진균 특성을 갖고 있음을 확인하였다. 이에 따라 Zeolite/Zinc-polypeptide 코팅 필름은 기능성 포장재로서 신선식품의 부패 방지와 보관수명 향상에 효과적일 것으로 보이며, 향후 다양한 신선식품에 적용하기 위한 저장 실험이 요구되어진다.

This study is for the application of functional antibacterial packaging to fresh food. Zeolite/Zinc-polypeptide was coated on PP film at concentrations of 5%, 10%, and 15%, degree of dispersion was verified through FESEM and FT-IR analysis. In addition, the antibacterial and antifungal properties of the films were analyzed according to the control group and the concentration of coating materials. As a result, the degree of dispersion of coating material was irregular but wide, depending on the concentration of Zeolite/Zinc-polypeptide on the surface of PP film. The antibacterial effect against E. coli was over 99.9%, and the growth of R. oryzae was inhibited about 70%. Therefore, it was confirmed that Zeolite/Zinc-polypeptide had antibacterial and antifungal properties against E. coli and R. oryzae even after coated on PP film. In conclusion, Zeolite/Zinc-polypeptide coating film is expected to be effective in preventing corruption and improving the shelf life of fresh food as a functional packaging material. In order to be applied to various fresh foods in the future, storage experiments are additionally required with temperature and humidity conditions according to fresh foods.

키워드

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