KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY (한국포장학회지)

Korea Society of Packaging Science and Technology (한국포장학회)
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Effect of Chlorine Dioxide, Cold Plasma Gas Sterilization and MAP Treatment on the Quality and Microbiological Changes of Paprika During Storage

이산화염소 및 저온 플라즈마 가스 살균 및 MAP 처리가 파프리카의 저장 중 품질과 미생물학적 변화에 미치는 영향

  • In-Lee, Choi (Agricultural and Life Science Research Institute, Kangwon National University) ;
  • Joo Hwan, Lee (Interdisciplinary Program in Smart Agriculture, Kangwon National University) ;
  • Yong Beom, Kwon (Interdisciplinary Program in Smart Agriculture, Kangwon National University) ;
  • Yoo Han, Roh (Interdisciplinary Program in Smart Agriculture, Kangwon National University) ;
  • Ho-Min, Kang (Interdisciplinary Program in Smart Agriculture, Kangwon National University)
  • 최인이 (강원대학교 농업생명과학연구원) ;
  • 이주환 (강원대학교 스마트농업융합학과) ;
  • 권용범 (강원대학교 스마트농업융합학과) ;
  • 노유한 (강원대학교 스마트농업융합학과) ;
  • 강호민 (강원대학교 스마트농업융합학과)
  • Received : 2022.11.21
  • Accepted : 2022.12.09
  • Published : 2022.12.31
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Abstract

This study was conducted to investigate the effect of packaging methods and sterilization treatment on storability and microbial control in paprika fruits. When treated with chlorine dioxide gas for 3, 6, and 12 hours and cold plasma gas for 1, 3, and 6 hours, and then packed in a carton box and stored in a 8 ± 1℃ chamber for 7 days, chlorine dioxide treated 12 hours and plasma treated 6 hours was prevented the development of E·coli and YM(yeast and mold). Accordingly, the control was treated with chlorine dioxide for 12 hours and plasma for 6 hours, packed using a carton box and 40,000 cc·m-2·day-1·atm-1 OTR film (MAP), and stored in a 8 ± 1℃ chamber for 20 days. Fresh weight loss rate during storage was less than 1% in the MAP treatments, and the visual quality of the MAP treatments was above the marketability limit until the end of storage. There was no difference in the contents of oxygen, carbon dioxide, and ethylene in the film. In the case of firmness, the chlorine dioxide treatments was low, and the Hunter a* value, which showed chromaticity, was highest in the Plasma 6h MAP treatment. Off-odor was investigated in the MAP treatments, but it was very low. The rate of mold growth on the fruit stalk of paprika was the fastest and highest in the chlorine dioxide treated box packaging treatments, and the lowest in the chlorine dioxide treated MAP treatments at the end of storage. The aerobic count in the pulp on the storage end date was the lowest in the plasma treated box packaging treatments, the lowest number of E·coli in the chlorine dioxide treated MAP treatments, and the lowest yeast & mold in the chlorine dioxide treated box packaging treatments. As a result, for the inhibition of microorganisms during paprika storage, it is considered appropriate to treat plasma for 6 hours before storage regardless of the packaging method.

파프리카 저장 및 유통 전 처리와 포장방법이 저장성 및 미생물 제어에 미치는 영향에 대해 알아보고자 수행되었다. 이산화염소 가스 3, 6, 12시간과 저온 플라즈마 가스 1, 3, 6시간 처리 후 골판지 박스로 포장하여 8±1℃ 챔버에서 7일간 저장 하였을 때, 이산화염소 12시간 처리와 플라즈마 6시간 처리가 대장균과 곰팡이 발현을 낮추는 것으로 나타났다. 이에 무처리 대조구와 이산화염소 12시간, 플라즈마 6시간 처리한 후 골판지 박스 포장과 MAP 처리를 하여 8±1℃ 챔버에서 20일간 저장하였다. 저장 중 생체중 감소는 MAP 처리구가 1% 미만의 수치를 보였고, 외관상 품질은 MAP 처리구가 저장 종료일까지 상품성 한계점 이상이었다. 필름 내 산소, 이산화탄소, 에틸렌 농도는 처리구간의 차이가 나타나지 않았다. 경도의 경우 이산화염소 처리구가 낮았고, 색도를 나타낸 Hunter a* 값은 MAP 처리구에서 증가하였다. 이취는 MAP 처리구에서 측정되었지만 매우 낮았다. 파프리카 과경의 곰팡이 발생률은 이산화염소 처리 박스 포장 처리구가 가장 빠르고 높게 발생하였고, 이산화염소 처리 MAP 처리구가 가장 낮았다. 저장 종료일 과육의 총 세균수는 플라즈마 처리 박스 포장 처리구, 대장균수는 이산화염소 처리 MAP 처리구, 곰팡이는 이산화염소 처리 박스 포장 처리구가 가장 낮았다. 이상의 결과를 종합해보면, 파프리카 저장 중 미생물 억제를 위해 포장 방법과 관계없이 저장 전 플라즈마를 6시간 처리하는 것이 적합하다고 판단된다.

Keywords

Acknowledgement

본 결과물은 농림축산식품부의 재원으로 농림식품기술기획평가원의 농식품수출비즈니스전략모델구축사업의 지원을 받아 연구되었고(320101-03), 한국연구재단의 기초연구사업(NRF-2021R1A6A1A03044242)의 지원을 받아 수행됨

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