**3.1. Extract yield (%) of** *Opuntia elatior* **Mill**

Pharmaceutical industries prefer plants that yield higher extract and are rich in their potency. Therefore, the work was carried out with yield calculation. We have selected hexane, methanol and distilled water solvent for extracting the plant constituents. A 36.84% of extract was produced by methanol, 15.79% extract was produced by distilled water and 3.40% of extract was produced by hexane from 25 g of powder by using 230 ml of solvents shown in **Figure 3**. Maximum extract was produced by methanol and minimum extract was produced by hexane.
