Korean Journal of Medicinal Crop Science (한국약용작물학회지)

The Korean Society of Medicinal Crop Science (한국약용작물학회)
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Quality Characteristics by Various Drying Methods in Ear Mushroom (Auricularia auricula-judae Quel.)

다양한 건조방법에 따른 목이버섯의 품질 특성

  • Choi, So Ra (Jeollabukdo Agricultural Research & Extension Services) ;
  • Yu, Young Jin (Jeollabukdo Agricultural Research & Extension Services) ;
  • Ahn, Min Sil (Jeollabukdo Agricultural Research & Extension Services) ;
  • Song, Eun Ju (Jeollabukdo Agricultural Research & Extension Services) ;
  • Seo, Sang Young (Jeollabukdo Agricultural Research & Extension Services) ;
  • Choi, Min Kyung (Jeollabukdo Agricultural Research & Extension Services) ;
  • Han, Hyun Ah (Jeollabukdo Agricultural Research & Extension Services) ;
  • Song, Young Ju (Jeollabukdo Agricultural Research & Extension Services) ;
  • Kim, Hee Jun (Jeollabukdo Agricultural Research & Extension Services) ;
  • So, Sun Young (Jeollabukdo Agricultural Research & Extension Services) ;
  • Lee, Gi Kwon (Jeollabukdo Agricultural Research & Extension Services) ;
  • Kim, Chung Kon (Jeollabukdo Agricultural Research & Extension Services)
  • Received : 2014.08.27
  • Accepted : 2014.11.05
  • Published : 2014.12.30
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Abstract

In order to produce the high quality of dried-ear mushroom, various drying methods such as hot-air drying at $40{\sim}80^{\circ}C$, freeze drying and drying in vinyl house were carried out. Drying hours of hot-air drying, freeze drying and drying in vinyl house were 12.5~21.5, 36.0 and 72.0 hrs, respectively. Vitamin $D_2$ content of sample was the highest as $6.77{\mu}g/g$ DW in drying in vinyl house and then followed by freeze drying as $5.90{\mu}g/g$ DW and hot-air drying as $1.89{\sim}5.01{\mu}g/g$ DW. After dry, external appearance and color of mushrooms applied hot-air drying and drying in vinyl house were better than freeze-dried one. After rehydration, water uptake of sample in drying in vinyl house and hot-air drying at $50{\sim}60^{\circ}C$ were 17.8 and 19.3~21.0 times, respectively. The methods of drying in vinyl house and hot-air drying at $50{\sim}60^{\circ}C$ also led to high hardness, good shape and resilience. As the results of production of dried-ear mushroom with high quality, we suggest that the best method for drying is the drying in vinyl house due to not only high vitamin $D_2$ content, good external appearance and color after drying but also high hardness and good shape after rehydration.

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References

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