Highly purified “Fraction V” Bovine Serum Albumin (BSA). The lyophilized powder is initially fractionated through a modified heat-shock procedure and further purified by isolation from other plasma proteins, lipids, and extraneous ions by extensive diafiltration and ion-exchange steps. Our Bovine Serum Albumin (BSA) Powder is a work-horse protein that has typical applications in serum media, bacterial culture work and as a stabilizer for EIA and RIA enzymatic systems that require high purity. Its characteristics include minimum 98% albumin, pH adjusted to 7, caprylate-free, and low conductivity. It is used in bacterial media, enzyme systems, and as a protein base. Mycoplasma-tested and virus-screened Store refrigerated at 2 to 8°C