FIGURE 3.

Major classes and subclasses of compounds isolated from E. crassipes based on the total number of phytochemicals. The keywords used on the Web of Science were “E. crassipes,” OR “water hyacinth” “phytocompounds,” “secondary metabolites,” “phenolic,” “flavonoids,” “saponins,” “sterols,” “terpenoids,” “carbohydrates,” “quinones,” “tannins,” “organic acids,” and “other compounds.”