J. Technology and Education, Vol.29, No.1, pp.17-21 (2022)

研究論文

コーヒー豆滓を用いたヒラタケ栽培の試み

 

田中 孝国¹*，井上 あかり¹，岡 悟史¹，三上 つき乃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)

 

Trial of Pleurotus ostreatus cultivation using coffee grounds

 

Takakuni TANAKA，Akari INOUE，Satoshi OKA，Tsukino MIKAMI，Akiko TANAKA，Tsuyoshi DEGAWA

National Institute of Technology, Oyama College

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

 

(Received March 29, 2022; Accepted May 9, 2022)

 

Most coffee grounds (after roasting, milling, and extraction) are treated as waste. However, coffee grounds are promising for a new biomass, and a trial in which they are reused is studied. In this study, coffee grounds were examined as to their suitability for fertilizing Pleurotus ostreatus for cultivation. First, a chamber for cultivating the spawn (25℃, relative humidity greater than 70%) and a cooling box for germination (15℃, LED irradiation at 12-hour intervals) were made. As a result, after spawn culture for 2 months and germination of about two weeks, Pleurotus ostreatus was grown. The size of Pleurotus ostreatus was up to 3 cm in height and 4 cm in diameter. It was smaller than the mean diameter (more than 5 cm) of Pleurotus ostreatus. It was suggested that upsizing in future.

Key words: Pleurotus ostreatus / coffee grounds / mushroom