The role and metabolic functions of the branched-chain amino acids: a review Olga Obvintseva, Kenes Erimbetov, Vitaly Mikhailov, Olga Sofronova and Lyudmila Polyakova E3S Web Conf., 363 (2022) 03054 Published online: 14 December 2022 DOI: 10.1051/e3sconf/202236303054