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Effect of Quality Characteristics of Enoki Mushroom (Flammulina velutipes) by Electron-beam Irradiation

전자선 조사가 팽이버섯의 품질특성에 미치는 영향

  • Seo-Joon Yeom (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Geon-Ah Lee (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Sang-Su Kim (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Ki-Nam Yoon (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Beom-Seok Song (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Jong-Heum Park (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Young-Min Kim (Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University) ;
  • Jae-Kyung Kim (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
  • 염서준 (한국원자력연구원 첨단방사선연구소) ;
  • 이건아 (한국원자력연구원 첨단방사선연구소) ;
  • 김상수 (한국원자력연구원 첨단방사선연구소) ;
  • 윤기남 (한국원자력연구원 첨단방사선연구소) ;
  • 송범석 (한국원자력연구원 첨단방사선연구소) ;
  • 박종흠 (한국원자력연구원 첨단방사선연구소) ;
  • 김영민 (전남대학교 융합식품바이오공학과) ;
  • 김재경 (한국원자력연구원 첨단방사선연구소)
  • Received : 2023.02.09
  • Accepted : 2023.03.08
  • Published : 2023.03.31

Abstract

This research was carried out to evaluate on microbiological (total aerobic bacteria, yeast and mold) and physicochemical (color, firmness, water content, water activity and weight loss) characteristics of 10MeV electron-beam irradiated(0, 0.5, 1, 2 and 3kGy) enoki mushroom during storage (0, 7, 14, 21 and 28 day) at 4℃ with 80% relative humidity. As compared to control, all irradiated samples exhibited dose-dependent decreases of microbial counts up to 28 days, and electron beam irradiation above 2 kGy kept below the microbiological safety threshold. Yellowness (b*) which is associated with discoloration of mushrooms was significantly reduced by electron beam irradiation (2 kGy). Firmness, water content, water activity and weight loss showed no significant difference in all group up to 28 days. Thus, the appropriate electron-beam irradiation dose was confirmed as 2 kGy to inhibit the microbial growth and browning reaction in enoki mushroom.

Keywords

Acknowledgement

본 연구는 과학기술정보통신부의 재원으로 한국원자력연구원의 주요사업(523210-23)에 의해 수행되었으며, 그 지원에 감사드립니다.

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