The application provides a
casein phosphopeptide with the functions of promoting the absorption of
calcium, iron,
zinc,
manganese and
magnesium and improving
bone health and a preparation method, and belongs to the technical field of
casein phosphopeptide and comprises the following steps: S1, taking
casein and adding
pepsin for first enzymolysis; S2, taking the first enzymolysis solution, adjusting pH and temperature, and adding a compound
enzyme for second enzymolysis; S3, after the second enzymolysis solution is inactivated, the casein
phosphopeptide is obtained through treatment. The casein phosphopeptide prepared by the application has the following advantages: 1. can effectively complex mineral elements and reduce
ion channel competition inhibition; 2. promotes the absorption of
calcium, increases the
hardness of the skeleton, and promotes the growth and development of the skeleton; 3. promotes the absorption of
magnesium, assists
calcium deposition, reduces bone loss, prevents
osteoporosis, 3. promotes the absorption of iron, prevents
iron deficiency anemia, and improves uncomfortable symptoms such as dizziness and fatigue; 4. promotes the absorption of
zinc, enhances the activity of immune cells, improves resistance, and improves
appetite. 5. promotes the absorption of
manganese, activates the development of the skeleton, accelerates
energy metabolism, and has
antioxidant effect.