Artificial synthesis is the chemical method, which prepared from the carotenoid astaxanthin.Biological method to obtain the biological source of natural astaxanthin, in general there are 3, aquatic products processing industry waste, red yeast Phaffia rhodozyma and microalgae (mainly Haematococcus pluvialis).
Astaxanthin can use chemical method from carotene prepared. This is the main source of astaxanthin in fish feed, the world have the capacity to synthesize production is BASF, DSM, Zhejiang NHU company Ltd.and Zhejiang pharmaceutical.
Apart from the algae extract,as the two kind of method of the addition of shrimp waste extraction of astaxanthin producing yeast extract is more expensive, This is why chemical synthesis approach is commonly used.
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