Bovine Serum Albumin

Bovine Serum Albumin (BSA) - High-Purity Protein for Diagnostics, Cell Culture, and Biochemical Research

Bovine Serum Albumin (BSA) from Golden West BioSolutions is a highly purified protein derived from USDA- or MPI-regulated bovine serum or plasma, offered in multiple grades including standard, fatty acid free, gamma-irradiated, sulfhydryl-blocked, and Fraction V. With excellent solubility and low endotoxin levels, BSA serves as a vital reagent in diagnostic assay development, cell culture supplementation, protein quantification, and enzyme stabilization.

Each BSA product is processed without preservatives and sterile-filtered, ensuring consistency, clarity, and optimal performance in immunoassays, Western blotting, ELISA blocking, and biopharmaceutical manufacturing. Sourced from cattle under veterinary supervision and inspected ante- and post-mortem, our BSA is available in lyophilized or solution formats to meet both research and manufacturing needs.

Key Features

• Sourced from healthy bovine serum or plasma (U.S. or New Zealand origin)
• Offered in multiple formulations:
  • BA4000 / BA4005 - Standard BSA ( | )
  • BA4010 - Fatty Acid Free (t)
  • BA4015 - Fraction V, Sulfhydryl Blocked ()
  • BA4030 - Sulfhydryl Blocked (
  • BA5005 - Gamma-Irradiated (
• Preservative-free and sterile-filtered (typically 0.2-0.22 µm)
• Stored at 2-8 °C for maximum stability
• Suitable for in vitro use or non-injectable product manufacturing

Applications

• Blocking agent in ELISA, Western blot, and immunohistochemistry
• Carrier protein in diagnostic reagents and vaccine formulations
• Enzyme and antibody stabilization in biochemical assays
• Supplement for serum-free and defined cell culture media
• Protein standard in BCA, Lowry, and Bradford assays
• Component in biomanufacturing, quality control, and R&D workflows