Steroidal saponins in edible and medicinal plants: species distribution, bioactivity, biosynthesis, and regulation - Liyu Lao; Shuyu Cai; Zaiyang Wen; Yufen Wu; Xinfeng Zhang; Jinping Si; Meisen Yang; Donghong Chen; Jingjing Liu; Cong Li (Phytochemistry Reviews, 2026)