Serum is the most commonly used supplement in cell culture. Fetal bovine serum (FBS) is the common choice because it contains high concentrations of growth factors and other important signaling molecules (e.g., adhesion proteins, nutrients, carrier proteins, cytokines, and hormones) required for cell survival and differentiation together with its buffering capabilities. FBS production begins with the collection of whole blood from bovine fetuses under aseptic conditions. Once collected, the blood is allowed to clot, and the serum is mechanically separated.…
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