Detection of alkaloids
Alkaloids were detected according to T et al., (2015), the Dragendorff’s
test. 2 mg of the methanolic extract was placed in a test tube
and 5 ml of distilled water was added. 2M Hydrochloric acid was added
until an acid reaction occurred. To the mixture, 1 ml of Dragendorff’s
reagent was added. The formation of orange or orange-red precipitate
indicated the presence of alkaloids.