| abstract |
The invention discloses a stem cell zero-protein culture medium and a preparation method of a stem cell growth factor, and relates to the field of biology. The stem cell zero-protein culture medium comprises amino acid, vitamin and mineral substances, has definite components, can maintain the growth and the reproduction of stem cells, and promotes the secretion of more growth factors. Does not contain exogenous serum, protein and factors, thus does not change the type and concentration ratio of growth factors secreted by the stem cells. |