Comparative Study of Extraction Methods for Enhancing the Yield of Medicinal Plant Alkaloids

This research is a comparative study of various extraction techniques to improve alkaloid yield and purity from medicinal plants. Alkaloids, with their broad spectrum of pharmacological activities including anticancer, analgesic, and antimalarial activities, are key bioactive molecules in pharmaceutical uses. The research assesses both traditional extraction methods—maceration and Soxhlet—and innovative techniques—Microwave-Assisted Extraction (MAE), Ultrasound-Assisted Extraction (UAE), Accelerated Solvent Extraction (ASE), and Solid Phase Extraction (SPE). Three medicinal plants rich in alkaloids (Rauwolfia serpentina, Catharanthus roseus, and Papaver somniferum) were chosen for the investigation. The techniques were evaluated on the basis of yield percentage, extraction time, solvent usage, and purity of extracts (evaluated through HPLC). Findings indicated that ASE and MAE performed significantly better than conventional techniques, providing higher purity and yield with less time and solvent consumption. SPE, employed as a purification process, also enhanced the quality of extracts. The findings support eco-friendly, new extraction methods in pharmaceutical and biotechnology, offering effective alternatives to existing approaches. The research standardizes alkaloid extraction methods for natural product research and industry.