Study of chemical composition and antioxidant activity of magnolia plant seed F. M. Tukhtaboeva, M. N. Khoshimjonova, D. S. Tuychieva and R. M. Bakhromov BIO Web Conf., 113 (2024) 01019 Published online: 18 June 2024 DOI: 10.1051/bioconf/202411301019