Additionally, krill oil contains astaxanthin, a marine-source keto-carotenoid antioxidant that may act synergistically with EPA and DHA.
32.
The liver of " R . glesne " is orange or red, the likely result of astaxanthin in its diet.
33.
Astaxanthin, unlike several carotenes and one other known carotenoid, is not converted to vitamin A ( retinol ) in the human body.
34.
Astaxanthin, and other chemically related asta-carotenoids, has also been found in a number of lichen species of the arctic zone.
35.
Astaxanthin, a carotenoid pigment, is responsible for the bright red color of the crown of " S . vermicularis ".
36.
Astaxanthin is a potent antioxidant that stimulates the development of healthy fish nervous systems and enhances the fish's fertility and growth rate.
37.
Swiss drugs company Roche Holding AG makes Carophyll Pink astaxanthin, an additive for use in salmon feeds that enhances the bland color of cultivated fish.
38.
Astaxanthin is found in microalgae, yeast, salmon, trout, krill, shrimp, crayfish, crustaceans, and the feathers of some birds.
39.
Finally, the geometrical isomer, all-" E ", is higher in yeast sources of astaxanthin, as compared to synthetic sources.
40.
Farmed trout and some populations of wild trout, especially anadromous steelhead, have reddish or orange flesh as a result of high astaxanthin levels in their diets.