Alternative methods in the successful extraction of herbal medicinal from stem plants are typically listed. Like 1. Maceration, 2. Infusion, 3. Digestion, 4. Decoction, 5. Percolation, 6. Soxhlet extraction, 7. Microwave-assisted extraction, 8. Ultrasound-assisted extraction. Your specific answers and practical suggestions are helpful to me, so regards your practical experiences: 1. Which technical method gives a high yield? 2. Also, which method gives significant quality and quantity products?