Astaxanthin is a keto carotenoid, red solid powder, fat soluble, insoluble in water and soluble in organic solvents. It widely exists in the biological world, especially in the feathers of aquatic animals such as shrimp, crab, fish and birds. Astaxanthin is a chain breaking Antioxidant. It has strong antioxidant capacity, can remove nitrogen dioxide, sulfide, disulfide, etc., can also reduce lipid peroxidation, and effectively inhibit lipid peroxidation caused by free radicals. At the same time, it has many physiological functions, such as inhibiting tumor, enhancing immunity and clearing free radicals in the body. It has a good therapeutic effect on skin cancer caused by ultraviolet radiation, and has a preventive and therapeutic effect on eye diseases caused by diabetes. It has broad application prospects in health products, medicine, cosmetics, Food Additives and aquaculture. Astaxanthin can be obtained not only by biological extraction, but also by chemical synthesis, but also by algae, bacteria and yeast. In addition, the application of DNA recombination technology to construct high-yield astaxanthin genetic engineering is also being studied.
Physiological Function
antioxidant
The important property of astaxanthin is its antioxidation. It is an excellent antioxidant.
Anticancer effect
A survey of dietary carotenoid intake and cancer incidence rate or mortality showed that the incidence rate or mortality of cancer was negatively correlated with carotenoid intake. Comparing the antitumor activities of various carotenoids, astaxanthin has the strongest effect.
Enhance body immunity
Astaxanthin can significantly enhance the local and systemic immune capacity of the body. This immunomodulatory characteristic, combined with antioxidation, plays an important role in preventing the occurrence and spread of diseases. Experiments show that carotenoids can slow down the decline of immune ability caused by aging, improve the function of immune organs and enhance the resistance to harsh environment. More importantly, astaxanthin can enhance the function of T cells, increase the number of neutrophils and natural killer cells, and participate in cellular immunity; Astaxanthin can also increase the vitality of B cells in the immune system, eliminate foreign invading pathogens, play a role by assisting in the production of antibodies and improving the activity of other immune components, such as promoting the production of immunoglobulin, increasing the production of IgG (immunoglobulin G), IgA (immunoglobulin A) and IgM (immunoglobulin M), and enhancing the ability of humoral immune response, Improve animal immunity.
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