Recycling of spent Oyster mushroom (Pleurotus ostreatus) sawdust waste for the production of Straw mushroom (Volvariella volvacea)

CHEM Chanchao; Y Phoura; NHIM Sreyneang; CHHEANG Lita; OURN Eneang; UK On Norong; SREY Chansorphea

doi:10.61945/cjbar.2023.5.1.1

CHEM Chanchao Department of Biology, Faculty of Science, Royal University of Phnom Penh, Phnom Penh 12150, Cambodia
Y Phoura Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-0032, Japan
NHIM Sreyneang Excellent Center of Enzyme Technology and Microbial Utilization, School of Bioresources and Technology, King Mongkut’s University of Technology Thonburi, Bangkok 10150, Thailand
CHHEANG Lita Department of Chemistry, Faculty of Science, King Mongkut’s University of Technology Thonburi, Bangkok 10140,Thailand
OURN Eneang Food Technology and Nutrition Research Unit (FTN), Research and Innovation Center, Institute of Technology ofCambodia, Phnom Penh 12156, Cambodia
UK On Norong Department of Biology, Faculty of Science, Royal University of Phnom Penh, Phnom Penh 12150, Cambodia
SREY Chansorphea Department of Biology, Faculty of Science, Royal University of Phnom Penh, Phnom Penh 12150, Cambodia

DOI: https://doi.org/10.61945/cjbar.2023.5.1.1

Keywords: Pleurotus ostreatusVolvariella volvacea RecyclingSpent mushroom sawdust waste (SMSW)

Abstract

The cultivation of straw mushroom Volvariella volvacea has a long history and has undergone continuous development. Nevertheless, ongoing research aims to utilize various agricultural wastes to improve biological efficiency. In this study, we investigate a sustainable strategy that promotes the conversion to a circular economy by recycling spent mushroom substrate in new mushroom crops. Our research provides insight into reducing spent mushroom sawdust waste (SMSW) of Pleurotus ostreatus for application in Volvariella volvacea cultivation. We found that the optimal conditions for cultivating V. volvacea were at a temperature of 35.0℃ a humidity of 80-85%, resulting in an average growth rate of 10.60 cm and a total weight of fruit bodies of 0.77 kg, with a biological efficiency of approximately 15.47% within 15 days of cultivation. We discovered that the SMSW could be an alternative substrate for V. volvacea cultivation. Our findings can be applied to improve V. volvacea cultivation and practical applications in agriculture. By involving innovative waste management practices, this article can foster economic growth while preserving the environment for future generations. Therefore, this study contributes to significant socio-economic development and supports green economic policies by discussing the improvements from using SMSW.