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 Astaxanthin, a kind of carotenoid, is a strong natural antioxidant. Like other carotenoids, astaxanthin is a fat-soluble and water-soluble pigment that can be found in marine life such as shrimp, crab, salmon, and algae. Astaxanthin  has the effects of protecting skin and eyes, resisting radiation, cardiovascular aging, Alzheimer's disease, and cancer. Astaxanthin has a strong antioxidant capacity, 550 times that of Vitamin E, and 10 times that of β-carotene. How do you understand the  effects of astaxanthin ? Strengthen immunity Astaxanthin can significantly affect the immune function of animals. In the presence of antigens, it can significantly promote the ability of spleen cells to produce antibodies, enhance the role of T cells, and stimulate the production of immune globulin in the body. Astaxanthin has a strong activity of inducing cell division and has an important immunomodulatory effect. Relieve fatigue and enhance body metabolism Astaxanthin can be used as an antioxidant

 Solubility test Take 2 grams of  phospholipidyl serine raw materials  and dissolve them in 50ml and 100ml of 45℃ warm water respectively, and observe their solubility. Solubility Item Result 2g/50ml Solubility Pour 2 grams of raw materials into 50ml of 45℃ warm water, the powder will not sink easily when floating on the water（picture in left）；After stirring, a clear suspension of particles is formed, and it sinks to the bottom of the cup quickly after stopping.（picture in middle）；After standing for 20 minutes, the solid particles completely sink to the bottom of the cup and the liquid is clear.（picture in right）. Image shows   2g/100ml Solubility Pour 2 grams of raw materials into 50ml of 45℃ warm water, the powder will not sink easily when floating on the water（picture in left）；After stirring, a clear suspension of particles is formed, and it sinks to the bottom of the cup quickly after stopping（picture in middle）；After standing for 20 minutes, the solid particles completely sink to