Integrated Green Microwave Extraction and Hydrophobic Resin-Based Enrichment of Mitragynine from Mitragyna speciosa . J. Pharm. Nutr. Sci. [Internet]. 2026 Mar. 18 [cited 2026 Sep. 13];16:1-7. Available from: https://setpublisher.com/index.php/jpans/article/view/2620