11. However, it does require some expertise to grow the algae with a high astaxanthin content. 12. Astaxanthin is a powerful antioxidant that may be from a natural source or a synthetic trout feed.13. While astaxanthin is a natural dietary component, it can also be used as a food supplement. 14. In most cases, the astaxanthin is made chemically; alternatively it is extracted from shrimp flour. 15. The primary pigment in American lobsters is astaxanthin , a red pigment found also in some bird feathers. 16. A common carotenoid in animals is astaxanthin , which gives off a purple-blue and green pigment. 17. The primary pigment in American lobsters is astaxanthin , a red pigment found also found in some bird feathers. 18. Astaxanthin is fairly abundant and obtainable from natural sources, and some consumers prefer natural products over synthetic ones.19. The natural colour of salmon results from carotenoid pigments, largely astaxanthin but also canthaxanthin, in the flesh. 20. The natural colour of salmon results from carotenoid pigments, largely astaxanthin , but also canthaxanthin, in the flesh.
