Table 2 Phytochemical screening of both extracts from ginger peels
Test name | Ginger peels | |
|---|---|---|
Cold water extract | Hot water extract | |
Alkaloids | ||
 Wagner’s | ND |  +  |
 Iodine | ND |  +  |
Phenolics and flavonoids | ||
 Alkaline reagent |  +  |  +  |
 Lead acetate |  +  |  +  |
 Ammonia |  +  |  +  |
 Conc. H2SO4 |  +  |  +  |
Carbohydrates | ||
 Starch |  +  |  +  |
Reducing sugar | ||
 Benedict |  +  |  +  |
Glycosides | ||
 Conc. H2SO4 |  +  |  +  |
 Modified Borntrager test |  +  |  +  |
Tannins | ||
 10% NaOH |  +  |  +  |
Proteins and amino acids | ||
 Biuret | ND | ND |
 Ninhydrin | ND | ND |