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Bovine Serum Albumin – Heat Shock, Protease DNASE Free, pH 7.0

Heat shock precipitated, protease and DNASE free BSA for multiple applications
Catalog #: 7920
SKU-Size Size Price Qty
7920-5 5 g
7920-25 25 g
7920-100 100 g
More Sizes Get Quote

Product Details

Highlights SOURCE: The raw material used to manufacture this lot was derived exclusively from USDA-regulated abattoirs located in the United States. The animals received ante-mortem and post-mortem inspection under a licensed veterinarian’s supervision and were certified at the time of slaughter as free of infectious or contagious diseases and injurious parasites.
PURITY: ≥ 96% by SDS-PAGE analysis
MOL. WEIGHT: ~ 66.43 kDa
FORM: Off-white powder
Albumin Content: ≥ 98% by electrophoresis.
pH: 7.0 ± 0.3
Moisture: ≤ 5.0%
Heavy Metals: ≤ 20 ppm
Ash: ≤ 2%
Protease: Not Detected
DNASE: Not Detected
IgG: Not Detected
SOLUBILITY: ~ 50 mg/ml in water, with 15 min manual stirring.
• Excellent in RIA and ELISA and as a diluent or blocking agent.
• No detectable protease and DNASE activity.
Storage Conditions 4°C
Shipping Conditions Gel Pack
USAGE For Research Use Only! Not For Use in Humans.


This BSA was purified by a proprietary heat shock process. BSA makes up approximately 60% of all proteins in animal serum. It is commonly used in cell culture protocols, particularly when protein supplementation is necessary and the other components of serum are unwanted. It aids in stabilization of enzymes and other proteins to prevent proteolysis and denaturation, especially when the proteins are present in low concentrations. In cell culture its main role is as a carrier of small molecules. Because of its negative charge, BSA binds water, salts, fatty acids, vitamins and hormones, then carries these bound components between tissues and cells. The binding capacity also makes BSA an effective scavenger for removing toxic substances, including pyrogens, from the medium.

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It shows that the BSA is protease and DNase free. What treatment do you do to make it Protease and DNase free? How can we verify your method?
We assay the raw material for protease and DNase. All the raw materials used were negative for Proteases and DNase. We use a commercial Protease and DNase test kit to validate the absence of protease and DNase in this product. Details of the assay are proprietary and therefore cannot be revealed.