Natural astaxanthin has three kinds of isomers: L, D and racemic. And chemically synthesized astaxanthin is mixtures of 3 kinds of isomers. The left and right structure account for 25% respectively.
The racemic structure accounts for 50%. And they can not be translated into native structures in the body. The study shows that only the L-structure astaxanthin has antioxidant activity. So the synthetic astaxanthin has only a small amount of antioxidant activity. Astaxanthins of algae and adonis all have L-structure, so the antioxidant activity of natural astaxanthin is much stronger than that of synthetic astaxanthin. Astaxanthin can only be used in aquaculture feed as a colorant. And astaxanthin’s chemicals residues reduce the safety of its use. So astaxanthin suppliers declare that the astaxanthin is banned for using in foods.
Astaxanthin is a super antioxidant. Statistics show that: the current 30% nutrition, 50% of cosmetics through antioxidant mechanism in the human body. Astaxanthin is precisely mankind found that the antioxidant capacity of the strongest material known as super the VE. The antioxidant properties are 1000 times than that of natural VE. It is 10 times of the natural ²-carotene and7 times of lycopene. It is 200 times of polyphenols.
The natural astaxanthin has an unique action mechanism. It is easy to be absorbed. Astaxanthin can penetrate the blood-brain barrier and the blood pancreas barrier and blood-testis barrier, and is the only carotenoids can penetrate the blood-brain barrier, therefore astaxanthin can act on brain cells and the eye retina.
Organisms cell membrane phospholipid bilayer, natural astaxanthin can cross the cell membrane phospholipid bilayer, to prevent the phospholipid molecules from oxidative damage, and protect the stability of the cell membrane, thereby significantly extend the life of the cell. Because astaxanthin molecular weight of relatively small, only 596.86, plus the both ends of the fat base is not as large as 1000 daltons, can easily be absorbed by the body for 20 minutes to reach human organs.
Since the natural astaxanthin as a dietary supplement sales a decade, there is no registered side effects recorded, and even allergic reactions recorded. With the market on other sources of astaxanthin data is exactly the opposite, such as petrochemical products using chemical methods to synthesize astaxanthin extracted from the variation of yeast astaxanthin pigment. A number of studies confirm that the commercialization of natural astaxanthin is a very safe carotenoid. The LD50 is nontoxic.
Currently, the best source of natural astaxanthin is haematococcus pluvialis. According to the data from cosmetic raw material suppliers, astaxanthin content of haematococcus pluvialis is up to 3.0% of dry weight, or even higher. It is an organism containing most abundant astaxanthin in nature. It is known as concentrated products of natural astaxanthin. In terms of functionality or security, the haematococcus pluvialis astaxanthin is superior to other sources of astaxanthin.
Source:http://www.cosprm.com
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