J.Technology and Education , Vol.32, No.1, pp.7-11 (2025)

研究論文

デカフェコーヒー豆滓を用いたアラゲキクラゲの栽培

 

田中 孝国¹* ，土橋 叶和¹ ，田中 葵希子¹ ，出川 強志²

¹小山工業高等専門学校　物質工学科　(〒323-0806 小山市中久喜771)

*tanakatakakuni@oyama-ct.ac.jp

²小山工業高等専門学校　技術室　(〒323-0806 小山市中久喜771)

 

Cultivation of Auricularia polytricha using decaffeinated coffee bean dregs

 

Takakuni TANAKA, Towa Dobashi, Akiko Tanaka and Tsuyoshi Degawa

National Institute of Technology, Oyama College

(771 Nakakuki, Oyama City, Tochigi 323-0806, JAPAN)

 

(Received December 31, 2024; Accepted February 7, 2025)

 

In this study, decaffeinated (99.9 [wt%] decaffeinated) coffee bean residue was used as a fertilizer to cultivate Auricularia polytricha. This experiment revealed that it is possible to grow Auricularia polytricha using decaffeinated coffee bean dregs. In particular, it was found that softly filling the cups with bean dregs during cultivation was effective in growing chytrid fungus. This is because the mycelium of the arachnid fungus is an aerobic fungus, and soft filling increased the air pathways and provided sufficient aeration. Blue mold and mushroom flies were observed, and when the product was transferred to plastic bags with zippers to improve sealing, the incidence of blue mold and mushroom flies was reduced. This suggested that an airtight space is necessary to prevent blue mold and mushroom flies.

Key words: Auricularia polytricha / coffee grounds / mushroom