Table 2 Bioactive phytochemical analysis of Discopodium penninervium Hochst leaf extract.

From: Statistical optimization of eco-friendly synthesized silver nanoparticles using Discopodium penninervium Hochst leaf extract for enhanced antimicrobial efficacy

No

Phytochemical

Compounds

Tests/Reagents

Observation

Results

1

Tannins

Ferric chloride test

Blue-black color

+

2

Alkaloids

Mayer’s reagent

Cream precipitate

+

3

Saponins

Frosting test

Frothing

+

4

Phenols

Ferric chloride test

Black color

+

5

Flavonoids

Alkaline reagent test

Intense yellow color

+

6

Terpenoids

Salkowski test

The reddish-brown color at the interface

+

7

Steroids

Salkowski test

The red color at the lower surface

+

  1. (+) indicates the presence of bioactive compounds.