Mycobiology

The Korean Society of Mycology (한국균학회)
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Chemical Composition of Aromas and Lipophilic Extracts from Black Morel (Morchella importuna) Grown in China

  • Tu, Xiaoman (School of Life Science and Technology & Center for Informational Biology, University of Electronic Science and Technology of China) ;
  • Tang, Lan (School of Life Science and Technology & Center for Informational Biology, University of Electronic Science and Technology of China) ;
  • Xie, Guangbo (School of Life Science and Technology & Center for Informational Biology, University of Electronic Science and Technology of China) ;
  • Deng, Kejun (School of Life Science and Technology & Center for Informational Biology, University of Electronic Science and Technology of China) ;
  • Xie, Liyuan (Institute of Soil and Fertilizer, Sichuan Academy of Agricultural Sciences)
  • Received : 2020.11.19
  • Accepted : 2020.12.07
  • Published : 2021.02.28
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Abstract

Morels (Morchella spp.) are valuable medicinal and edible mushrooms. In this study, chemical profiles of aromas and lipophilic extracts of black morel (Morchella importuna) grown in China were analyzed by gas chromatography/mass spectroscopy, along with the evaluation of antioxidant and antimicrobial activities for the lipophilic extracts. Sixty-five compounds in total were identified from the aromas, and 1-octen-3-ol was the main component for aromas of fresh (34.40%) and freeze-dried (68.61%) black morels, while the most abundant compound for the aroma of the oven-dried sample was 2(5H)-furanone (13.95%). From the lipophilic extracts, 29 compounds were identified with linoleic acid as the main compound for fresh (77.37%) and freeze-dried (56.46%) black morels and steroids (92.41%) as the main constituent for an oven-dried sample. All three lipophilic extracts showed moderate antioxidant activities against 2,2-diphenyl-1-picrylhydrazyl and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) with the IC50 values ranging 7.56~17.52 mg/mL and 5.75~9.73 mg/mL, respectively, and no obvious antimicrobial activity was observed for lipophilic extracts. The drying methods affect the chemical profile of black morel, and freeze-drying was favorable for retaining nutrients and morel smell. This is the first report on the aroma and lipophilic extracts of M. importuna grown in China.

Keywords

References

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