Table 4 Results of phytochemical screening
Colorimetric reaction | Plant extract | ||||
|---|---|---|---|---|---|
L. camara | B. frutescens | P. auritum | C. cajan | A. mexicana | |
Phenolic compounds (FeCl3) | ++ | + | ++ | ++ | + |
Coumarins (UV) | -- | ++ | -- | -- | + |
Flavanones (NH3) | + Yellow | -- | + Yellow | + Yellow | + Yellow |
Flavonoids (Shinoda) | -- | -- | + Red | + Orange | + Red |
Sesquiterpene lactones (Baljet) | + | -- | + | + | + |
Alkaloids (Meyer) | +++ | +++ | +++ | +++ | +++ |
Alkaloids (Dragendorff) | +++ | +++ | +++ | +++ | +++ |
Steroids and triterpenoids (Liberman, Burchard) | ++ | ++ | + | + | + |
Glycosides (α-naphtol) | -- | -- | -- | -- | + |