Yeun Sug Jeong, Yeongseon Jang *, Rhim Ryoo, Kang-Hyeon Ka
Division of Special Forest Products, National Institute of Forest Science, Suwon 16631, Korea
Correspondence to idjys@korea.kr
Korean Journal of Mycology (Kor J Mycol) September, 2019, 47(4):385-92.
https://doi.org/10.4489/KJM.20190043
Accepted: December 16, 2019; Revised: December 14, 2019; Received: October 07, 2019
Published: September, 2019.
© 2019 THE KOREAN SOCIETY OF MYCOLOGY.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Currently, plastic bags are being used for sawdust cultivation of shiitake mushroom. However, due to serious environmental problems caused by the use of plastic bags, we studied the efficacy of bottle cultivation method to replace the sawdust bag method. Small detachable plastic bottles (400 g capacity) filled with Quercus spp. sawdust and wheat bran (4:1 w/w) media were incubated for 80 and 120 days. The weight loss (%) of the media was higher for the NIFoS 2464 strain at an approximate light intensity of 300 Lux than light intensity of 500 Lux; the light intensity was associated with the loss of sawdust medium-weight during the cultivation period. The highest yield was observed when the strain was cultivated for 80 days under dark conditions, 40 days under 500 Lux light, and air circulation fan speed of 30 rpm. When incubated for 120 days, mushroom yield in the bottle media was higher at 40 days of light exposure than 20 days of light exposure. In the bottle media incubated for 80 days under dark conditions, the mushrooms fruited due to repetitive water spraying on the top of the media and light stimulation during the fruiting period. The media could be separated from the bottles because the media shrank after the first harvest. These separated plastic bottles could be re-used for mushroom cultivation, thereby reducing the amount of plastic waste.
Bottle, Cultivation, Light intensity, Shiitake