What is the procedure to extract an active ingredient from a plant?

To extract an active ingredient from a plant, first, select and prepare the plant material by drying and grinding it if necessary. Next, choose an appropriate solvent (such as water, ethanol, or methanol) and immerse the plant material in it, allowing for extraction through methods like maceration, percolation, or refluxing. After a specified period, filter the mixture to separate the liquid extract from the solid residue. Finally, concentrate the extract if needed, and analyze it to identify and quantify the active ingredient.