Journal of Mushroom (한국버섯학회지)

The Korean Society of Mushroom Science (한국버섯학회)
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Comparison of the growth characteristics of Aurcularia auricula-judae according to gamma ray irradiation dose

감마선 조사량에 따른 Aurcularia auricula-judae의 생육특성 비교

  • Jeong-Heon Kim (Department of Plant Resources, Kongju National University) ;
  • Jin-Woo Lee (Department of Plant Resources, Kongju National University) ;
  • Tae-Min Park (Department of Plant Resources, Kongju National University) ;
  • Soon-Jae Kwon (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Chang-Hyun Jin (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Youn-Jin Park (Kongju National University Legumes Green Manure Resource Center) ;
  • Myoung-Jun Jang (Department of Plant Resources, Kongju National University)
  • 김정헌 (공주대학교 식물자원학과 ) ;
  • 이진우 (공주대학교 식물자원학과 ) ;
  • 박태민 (공주대학교 식물자원학과 ) ;
  • 권순재 (한국원자력연구원 첨단방사선연구소) ;
  • 진창현 (한국원자력연구원 첨단방사선연구소) ;
  • 박윤진 (공주대학교 두과녹비자원센터) ;
  • 장명준 (공주대학교 식물자원학과 )
  • Received : 2023.11.29
  • Accepted : 2023.12.13
  • Published : 2023.12.31
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Abstract

In this study, we examined the effects of gamma irradiation dosage on the mycelial growth of Auricularia auricula-judae and performed analyses of fruiting body yield, growth characteristics, taste, fragrance, and mineral composition. Assessments of mycelial growth in response to gamma irradiation at different intensities revealed an enhancement in the growth of fungi exposed to irradiation at 200 Gy. Fruiting body yield was also highest at 200 Gy, followed by 800 Gy and the control group. On the basis of these observations, we subsequently applied gamma ray doses of 200 and 800 Gy to examine the effects of irradiation on fungal quality characteristics. In terms of the taste of fruiting bodies, we detected no significant differences among the control, 200 Gy, and 800 Gy groups. Contrastingly, with respect to fragrance, we found that fungi treated with 200 Gy were characterized by a pattern that differed from those of the control and other treatment groups. Furthermore, whereas we detected no significant difference among treatments with respect total dietary fiber content, calcium content was found to be higher in the treatment groups compared with the control group, with the highest content being measured in fungi exposed to 800 Gy irradiation. Copper content was confirmed to be higher in the control group, whereas there were no significant differences between the fungi irradiated with 200 and 800 Gy. Contrastingly, the highest levels of zinc were detected in response to 200 Gy irradiation, followed by 800 Gy. Collectively, our findings thus indicate that gamma irradiation can contribute to promoting increases in the fruiting body yield and mineral contents of mushrooms.

본 연구는 감마선을 조사한 목이의 변이 양상을 균사 생장 조사, 자실체 수량 및 생육특성 조사, 자실체의 맛, 향 그리고 구성물질 분석을 통해 확인하였다. 감마선 세기에 따른 균사 생장을 조사한 결과 200 Gy처리구에서 가장 우수하였다. 자실체의 수량 또한 200 Gy에서 가장 높았으며, 다음으로 800 Gy와 control이 대등하게 나타났다. 이를 기반으로 200 Gy와 800 Gy를 우수한 특성을 가진 처리구로 선발하였고, 이들을 대상으로 물질분석을 진행하였다. 자실체의 맛 패턴을 비교했을 때, control과 200 Gy, 그리고 800 Gy가 비슷하게 나타났다. 향기 패턴을 비교한 결과 200 Gy가 control 및 처리구와 다른 양상을 보였다. 선발된 처리구들과 control간의 총 식이섬유 함량을 비교했을 때 큰 차이를 확인할 수 없었다. 칼슘과 아연의 함량을 확인했을 때 칼슘 함량은 800Gy, 아연은 200Gy처리에서 높아, 감마선 처리에 따라 함량이 다르게 나타났다. 따라서 감마선 조사는 목이 수확량을 늘리고 칼슘과 아연의 함량을 향상시킬 수 있다.

Keywords

Acknowledgement

2023년 한국원자력연구원 목이버섯 돌연변이 집단 이용 기능성 신품종 육성기반 구축(과제번호 : 523320-23-a-230782064780001)의 지원에 의해 수행된 결과입니다.

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