Optimized low-cost isolation of α-amyrin acetate from Alstonia boonei: toward scalable production of a bioactive triterpenoid. jcbr [Internet]. 2025 Oct. 2 [cited 2026 Jun. 4];5(4, July-August):2193-205. Available from: https://journals.unizik.edu.ng/jcbr/article/view/6817