Characteristics of secondary dairy raw material obtained during dairy processing Nilufar B. Ubaydullaeva, Dilrabo Q. Maksumova, Shaxzoda J. Shosalimova and Mohamed Rifky E3S Web Conf., 486 (2024) 02025 Published online: 07 February 2024 DOI: 10.1051/e3sconf/202448602025