Table 2.
Carotenoid | Colour | c.d.b. (in rings) | Absorption maxima (nm) | ||
---|---|---|---|---|---|
Canthaxanthin | Red | 13 (4) | 472 | ||
Astaxanthin * | Red | 13 (4) | 468 | ||
Lycopene | Red | 11 (0) | 446 | 474 | 504 |
β-Carotene | Orange | 11 (2) | 454 | 480 | |
Zeaxanthin | Orange | 11 (2) | 454 | 480 | |
Lutein | Yellow | 10 (1) | 424 | 448 | 476 |
Phytofluene * | Colourless | 5 (0) | 331 | 348 | 367 |
Phytoene * | Colourless | 3 (0) | 286 |
* Absorption maxima in petroleum ether.