Phytochemicals | Positive results | Nepeta cataria | Basella alba | ||
MeOH | H2O | MeOH | H2O | ||
Phenol | deep bluish-green | + | + | + | − |
Tannin | blue-black | + | + | − | − |
Phlobatannin | red precipitate | − | − | + | − |
Saponin | Formation of honey comb | + | + | + | + |
Flavonoid | yellow color | + | − | + | − |
Steroid | violet to blue or green | − | − | + | − |
Essential oil | white precipitate | + | + | − | − |