Comparison of techniques for the extraction of Camptothecin from Tabernaemontana species.

Extraction methods like maceration, ultrasonication, vortex mixer, soxhlet extraction and microwave assisted extraction (MAE), were evaluated for the extraction of Camptothecin (CPT) from the leaves and stem of , and . The extracts were analyzed by high performance thin layer chromatography (HPTLC). The results show that the leaves of exhibited highest yield of CPT as compared to the other species.