Culture medium refers to the nutrient matrix which is made up of different nutrients for the growth and reproduction of microorganisms, plants or animals (or tissues), which generally contains carbohydrates, nitrogenous substances, inorganic salts, vitamins, water and other substances. The natural culture medium is a medium made of animals, plants or microorganisms including their extracts; the synthetic culture medium is a culture medium simulated and artificially designed by chemical substances according to the components of the natural medium; the semi-combined culture medium is mainly composed of chemical reagents and a small amount of natural ingredients are added at the same time.
According to the above definition, which of the following options belongs to the semi-combined culture medium?
In order to study the growth of chicken embryo cells, the culture medium was made by adding a small amount of corn juice to a certain proportion of saline amino acid solution.