Table 1.
The chemical and biophysical properties of curcuminoid [15].
| Characteristics | Cur-I | Cur-II | Cur-III |
|---|---|---|---|
| Common Name | Cur | DemethoxyCur | BisdemethoxyCur |
| Chemical Name | Dicinnamoyl methane | 4-OH cinnamoyl methane | Bis-4-OH cinnamoyl methane |
| Color | Bright orange-yellow | Bright orange-yellow | Bright orange-yellow |
| Amount Present (%) | 77 | 17 | 3 |
| Molecular Mass (g/mol) | 368.4 | 338.0 | 308.1 |
| Melting Point (°C) | 183.0–186.0 | 172.5–174.5 | 224.0 |
| Neutral Solvent (water) | Poorly soluble | Poorly soluble | Poorly soluble |
| Solubility in Organic Solvents | Soluble | Soluble | Soluble |
| Solubility in Hexane or Ether | Insoluble | Insoluble | Insoluble |
| Excitation/Emission in | 420/530 nm | 420/530 nm | 420/530 nm |
| Excitation/Emission in Alcohol | 536–560 nm | Unknown | Unknown |