Extraction of B. racemosa seed in water solvent. A total of 200 g of seeds were thinsliced,
and then the slices were blended to make pulp. The pulp was boiled within 100 mL
water for 15 minutes, the decoction was filtered using Whatman #1 paper. The filtrate
was evaporated through an evaporator vacuum to obtain viscous crude extracts. The
specific gravity of condensed extracts was determined and then they were stored in a
refrigerator for two days.