Astaxanthin can be produced from carotene by chemical methods. This is the largest source of astaxanthin in fish feed. Other methods are: added shrimp waste or astaxanthin yeast. According to astaxanthin suppliers, natural astaxanthin mainly comes from rain pluvialis.
Human retina and the central nervous system (brain) are rich in unsaturated fatty acids, therefore, free radicals produced by oxidation is easy to make it happen oxidative damage. There are some studies shown that astaxanthin is easily through the blood-brain barrier and the cell membrane, can effectively prevent the oxidation of retinal and Photoreceptor cell injury, and play a protective role on central nervous system especially the brain, so that effective to treat ischemia-reperfusion injury, spinal cord injury, Parkinson's syndrome, Alzheimer syndrome and other central nervous system injury. Especially the effect of macular degeneration is more pronounced than lutein.
A clinical study about atherosclerosis and cardiovascular disease showed that the oxidation of low density lipoprotein (LDL) is the significant reason to cause arteriosclerosis. The higher the concentration of LDL in humans, combined with platelet deposition make blood vessels grow fine and impede blood flow velocity, the greater the risk of human suffer atherosclerosis. But the high density lipoprotein (HDL) in the blood has the opposite effect, it prevents arteriosclerosis. In human blood, astaxanthin is carried by very low density lipoprotein (VLDL), LDL and HDL. In vitro and clinical tests prove that every people oral administration of 3.6mg/d astaxanthin, continuous for 2 weeks, can prevent the oxidation of LDL. In addition, animal studies have shown that astaxanthin in the body has the effect of significantly increase HDL and decrease LDL, wherein the HDL can be increased from 49.7 ± 3.6mg/dL to 66.5 ± 5.1mg/dL so that speculated that astaxanthin can reduce the oxidation of apolipoprotein, can be used to prevent arteriosclerosis, coronary heart disease and ischemic brain injury. Unlike the common reduce LDL drugs, every day use 1.8, 3.6, 14.4 and 21.6mg astaxanthin, for 2 consecutive weeks, the oxidation time of LDL will be extended 5%, 26.2%, 42.3% and 30.7%; so that can prevent the occurrence of atherosclerosis.
Astaxanthin also known as astacin, is a natural pigment, can give the pink color to pet fish, salmon, shrimp and Flamingo. Its chemical structure is similar to beta-carotene. Astaxanthin is a kind of carotenoid. Also the highest level products of carotenoid synthesis, ²-carotene, lutein, canthaxanthin, lycopene are nothing more than an intermediate product of the carotenoid synthesis, therefore, in nature, astaxanthin with a strong inoxidability. Based on some experimental data suggest that the rate of astaxanthin scavenging free radical is by far the highest, can inhibit the skin damage caused by free radicals, especially to the oxidative damage caused by UVA has a very good effect. This natural pigments are naturally occurring in algae to against UV rays, also have a certain preventive effect for preventing UV, can repair Sun-damaged skin, is a common cosmetic raw material, many internationally famous brands skin care products were added astaxanthin as antioxidant. While astaxanthin is a good antioxidant, but there are still have a very big problem, that is the color, astaxanthin’s color is yellow, at the same time, astaxanthin is oil soluble, so the products’ texture is not particularly cool.
Source:http://www.cosprm.com
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