Optimised extraction conditions for maximising saponin yield and antioxidant properties of Hedera helix L. Indian Journal of Natural Products and Resources (IJNPR) [Formerly Natural Product Radiance (NPR)], [S. l.], v. 16, n. 4, p. 629–643, 2025. DOI: 10.56042/ijnpr.v16i4.17153. Disponível em: https://or.niscpr.res.in/index.php/IJNPR/article/view/17153. Acesso em: 15 may. 2026.