Then reflux
condenser was attached to the flask and
boiled gently for 1 hour, cooled, shacked
well and filtered through a dry whatman
filter paper. The filtrate was then poured
into sterile beaker and evaporated to
dryness on a water bath at 60°C. It was
cooled in desiccators for 30 minutes andweighed without delay, where 30.14%
extractive value was found. This residual
was brown colored, water-soluble, which
was transferred to a moisture free test
tube and made it air tight by means of a
cork.