Journal of Mushroom (한국버섯학회지)

The Korean Society of Mushroom Science (한국버섯학회)
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The change in C8 and C9 volatile compounds according to the drying conditions of Pleurotus citrinopileauts and P. djamor

노랑느타리와 분홍느타리의 건조조건에 따른 C8과 C9 향기성분의 변화

  • Minji Oh (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Minseek Kim (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Ji-Hoon Im (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Youn-Lee Oh (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA)
  • 오민지 (국립원예특작과학원 버섯과) ;
  • 김민식 (국립원예특작과학원 버섯과) ;
  • 임지훈 (국립원예특작과학원 버섯과) ;
  • 오연이 (국립원예특작과학원 버섯과)
  • Received : 2023.12.04
  • Accepted : 2023.12.26
  • Published : 2023.12.31
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Abstract

Mushrooms have a unique taste and aroma, so in the processing of mushroom products with other ingredients, a separate pre-processing step is often taken to eliminate the mushroom aroma. In this study, we analyzed the changes in the concentration of volatile compounds according to drying conditions to promote the activation of processing using the fruiting bodies of yellow oyster mushrooms(Pleurotus citrinopileatus) and pink oyster mushrooms(P. djamor). The caps and stipes of yellow oyster and pink oyster mushrooms were separated and freeze-dried at -70℃ for 120 hours. Subsequently, they were hot air-dried at temperatures of 40, 50, 60, and 70℃ for 24, 24, 16, and 12 hours, respectively. The dried samples were pulverized and quantitatively analyzed by SPME-GC-MS. In the case of yellow oyster mushrooms, the concentration of t-2-nonenal in caps and stipes during freeze-drying was 164.43 ㎍/g d.w. and 174.80 ㎍/g d.w., respectively, whereas during hot air-drying, it significantly decreased to 0.35~3.41 ㎍/g d.w. and 0.98~59.88 ㎍/g d.w. In a similar manner, for pink oyster mushrooms, the concentration of 1-octen-3-ol during freeze-drying in caps and stipes was 31.05 ㎍/g d.w. and 176.17 ㎍/g d.w., respectively, whereas during hot air-drying, it significantly decreased to 1.59~9.66 ㎍/g d.w. and 1.96~15.77 ㎍/g d.w. Furthermore, most volatile compounds showed a tendency to decrease in concentration as the temperature during hot air-drying increased.

국내에서 가장 쉽게 재배될 수 있는 느타리류 중 노랑느타리와 분홍느타리의 자실체를 이용한 가공화의 활성화를 위해 건조 조건에 따른 휘발 성분의 농도 변화를 본 연구에서 분석하였다. 노랑느타리와 분홍느타리 자실체의 갓과 대를 분리하여 -70℃에서 120시간 동안 동결건조하였고, 40, 50, 60, -70℃의 온도에서 각각 24, 24, 16, 12시간 동안 열풍건조 하였다. 건조된 시료를 분쇄하여 SPME-GC-MS로 정량분석한 노랑느타리 주요 향기성분인 t-2-nonenal은 동결건조 시 갓과 대에서 각각 164.43 ㎍/g d.w., 174.80 ㎍/g d.w.인 반면, 열풍건조 시 0.35~3.41 ㎍/g d.w., 0.98~59.88 ㎍/g d.w.로 유의하게 감소하였다. 마찬가지로, 분홍느타리 주요 향기성분인 1-octen-3-ol은 동결건조 시 갓과 대에서 각각 31.05 ㎍/g d.w., 176.17 ㎍/g d.w.인 반면, 열풍건조 시 1.59~9.66 ㎍/g d.w., 1.96~15.77 ㎍/g d.w.로 감소하였다. 또한, 대부분의 휘발 성분이 열풍건조 시 처리온도가 높아짐에 따라 농도도 감소하는 경향을 보였다. 본 연구 결과를 바탕으로 느타리류를 가공함에 있어 버섯 향과 관련한 건조 조건을 다양하게 활용할 수 있을 것으로 기대해본다.

Keywords

Acknowledgement

본 연구는 농촌진흥청 국립원예특작과학원 기본과제(PJ01419604)에서 수행한 연구 결과로 연구비 지원에 감사드립니다.

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