Astaxanthin is a fat-soluble antioxidant that can protect cells in various tissues of the human body from oxidative damage. Many studies have shown that singlet oxygen and oxygen free radicals produced by photooxidation can cause peroxidative damage to the polyunsaturated fatty acids contained in the retina. Clinically, the use of dietary supplementation of astaxanthin can help the retina cancel reactive oxygen species, resist oxidative damage, and treat degenerative maculopathy. Astaxanthin can enter the fundus through the blood-brain barrier and effectively prevent retinal oxidation and photoreceptor cell damage. It has a good effect on treating degenerative maculopathy and protecting the retina.
Astaxanthin is a lutein pigment that exist in animals, plants, algae, and microorganisms. At present, most of the common astaxanthin products on the market are extracted from marine microalgae. The production methods of astaxanthin include synthesis, extraction and fermentation. The fermentation method is mainly produced by algae and yeast, such as culturing Haematococcus pluvialis, Euglena and Phaffia yeast, Rhodotorula glutinis, and Rhodotorula glutinis. Natural astaxanthin is extracted from the fermentation product using an extraction process. Our current most advanced extraction process is supercritical CO2 extraction, which has a high extraction rate and no solvent residues.