Serum is the centrifuged fluid component extracted from either clotted or defibrinated whole blood. Bovine serum comes from blood taken from domestic cattle.
Whilst the procedure of making serum may seem to be straightforward, the processing of serum takes place under very tightly controlled conditions. The process has been carefully developed and uses sophisticated facilities and equipment, and is accompanied by extensive testing particularly stringent when processed bovine serum is intended for use in the production of medicinal products.