At present, there are three kinds of biological sources of artificial astaxanthin: the extracts from aquatic products processing industry, phaffia yeast and haematococcus pluvialis. Herein, the astaxanthin content of aquatic products extracts is lower and it has high extraction degrees. So it is not suitable for wide-range production. The astaxanthin content of artificial phaffia yeast is only 0.40%. Compared to the two sources, astaxanthin content of haematococcus pluvialis is 1.5 to 3.0%. It is regarded as the artificial concentrates by astaxanthin suppliers.

Studies have shown that savings accumulation rate and total astaxanthin production of haematococcus pluvialis is higher than the other green algae. And the haematococcus pluvialis contained astaxanthin and its esters ratio (about 70% of the monoester, 25% of diester and 5% of monomer) aquaculture animals ratio very same, which is Britain do not have the chemical synthesis and manipulation of Phaffia yeast, such as extraction of astaxanthin at the end of a disadvantage. The red ball algae astaxanthin structure of the rain Health 3S13 S-type main structural basis for differences in dynamic objects astaxanthin and salmon water; phaffia yeast astaxanthin structure compared with 3R13 R type.

Haematococcus pluvialis was recognized as the best biological production of artificial astaxanthin in nature, therefore, manipulation of this microalgae extract astaxanthin undoubtedly has a spacious open-minded retrogression close-range, has become in recent years, artificial astaxanthin production study hot spots. It is dynamic by several algae and plankton. Some aquatic species of crustaceans, including the collection of shrimp eat the algae and plankton, and this pigment is stored in the shell, so their hearts thrown a pink and white. Shellfish and fish and bird predation, and then store the pigment in the skin and fat structure. This is the cause of the salmon and other animals appearing white. Astaxanthin has been bleached, these animals retained the pink and white.

Astaxanthin edification which is connected with the aquatic animals is not particularly significant. But it is a promising anti-oxidants comparing to vitamin E. It can also be anti-purple inside. Only algae can occur vitality of astaxanthin, more elementary animal can not less than the conversion of this chemical structure. The role of astaxanthin aquaculture has a serious meaning. Farmed salmon have several models. Farmed in the sea, the food is artificial, additional compensation feed. The other way is to marine aquaculture, as many salmon can not eat artificial food. The fish feed needs astaxanthin.

The cosmetic raw material suppliers can obtain astaxanthin from the carotene by chemical way. This is the most minor source of astaxanthin in fish feed. There are some other sources such as the growth of shrimp wastes or yeasts which can produce astaxanthin. However, these two approaches are more expensive. This is the reason why chemical approach is rarely used in astaxanthin production. Although chemical structures of natural astaxanthin and artificial astaxanthin are differences, but artificial astaxanthin is also important for the salmon and people.