Serum-containing media
(Eg : Human, bovine,
equine, or other serum is
used as a supplement)
Serum-free media (Eg :
Crude protein fractions,
such as bovine serum
albumin or α- or
β-globulin, are used as
supplements)
Xeno-free media (Eg :
Human-source components,
such as human serum
albumin, are used as
supplements but animal
components are not allowed
as supplements)
Protein-free media (Eg : Undefined
components, such as peptide
fractions (protein hydrolysates) are
used as supplements)
chemically defined media (Eg :
Undefined components, such as crude
protein fractions, hydrolysates, and
tissue extracts, are not appropriate as
supplements, but highly purified
components, such as recombinant
proteins are appropriate supplements
NATURAL MEDIA
Coagulant or clots (Eg :Plasma
separated from heparinized blood,
serum, and fibrinogen)
Tissue extracts (Eg : Extracts of chicken
embryos, liver, and spleen and bone
marrow extract)