From: Toxicological evaluation of Hydrocotyle bonariensis Comm. ex Lamm (Araliaceae) leaves extract
Secondary metabolites | Reagents | Observation (positive result) |
---|---|---|
Flavonoids | Ferric chloride 1 | Orange pink |
1/10 NaOH | Red | |
Tannins | Ferric chloride 1 | Blue-black coloration |
Copper sulfate | ||
Alkaloids | Mayer | Yellowish white precipitate |
Dragendorf | Red–orange precipitate | |
Saponosides | Foam index test | Important presence of foam of at least 1 cm |