The lower stability of synthetic astaxanthin

The stability and antioxidant activity of synthetic astaxanthin is lower than natural astaxanthin . Because astaxanthin molecular ends of the hydroxyl (-OH) can be esterified led to its stability is not the same.

  There are more than 90% natural astaxanthin ester form, so more stable.Astaxanthin synthesis in the free state in the presence of stability is not the same, therefore, astaxanthin synthesis must make embedding to stability.

  Synthesis of astaxanthin as left-handed structure is only about 1/4, so its antioxidant activity is only natural about 1/4.