Theoretical and practical aspects of the production of powdered semi-finished product from cultivated mushrooms pleurotus ostreatusNina Myachikova, Alexey Remnev, Yuri Boltenko, Irina Korotkyh, Olga Binkovskaya and Irina ZinovevaBIO Web Conf., 30 (2021) 01012DOI: https://doi.org/10.1051/bioconf/20213001012