Table 1 Absorbance of extracted pigment under extraction with different solvents
Solvent | Â | Polarity index | Solubility of pigment | Absorbance (510Â nm) | |
|---|---|---|---|---|---|
before extraction | after extraction | ||||
Diethyl ether | Non polar | 2.8 | insoluble | 2.1 | 0.0 |
Chloroform | 4.1 | insoluble | 2.1 | 0.0 | |
Hexane | 0.1 | insoluble | 2.1 | 0.0 | |
n-Butanol | Polar | 3.9 | Complete soluble | 2.1 | 1.9 |
Ethanol | 0.6 | Complet soluble | 2.1 | 2.0 | |
Ethyl acetate | 4.4 | Moderate soluble | 2.1 | 1.7 | |