GoldBio’s Cohn Analog BSA is a highly purified, lyophilized “Fraction V” bovine serum albumin designed for sensitive applications in cell culture, microbial culture, reproductive biology, and molecular biology. Derived from the plasma of USDA-inspected healthy animals in U.S.-based facilities, this lyophilized “Fraction V” powder is produced using a proprietary, non-solvent procedure, including membrane dialysis, filtration, and a modified Cohn/heat-shock procedure, to inactivate proteases and minimize analytes.

GoldBio Cohn Analog BSA is free of carbohydrates and suitable for applications such as Western blotting, enzyme systems, protein standards, hybridizations, and protease-sensitive immunoassays. Our BSA is protease-free and low-interference, consisting of high purity with low backgrounds. Cohn Analog BSA offers a superior performance for enhancing growth and maintaining consistency in demanding workflows making it the reliable choice for both standard and sensitive molecular biology experiments.

GoldBio's Reagent Grade, Fatty Acid Free BSA is ideally suited for fatty acid sensitive cell culture systems, such as CHO, Vero and MDCK cells, as well as for the most sensitive diagnostic and research applications.

GoldBio BSA is a highly purified, lyophilized albumin, suitable for Westerns, enzyme systems, protein standards, hybridizations and as a protease-sensitive immunoassays. Reagent Grade, Fatty Acid Free BSA is ideally suited for fatty acid sensitive cell culture systems as well as for the most sensitive diagnostic and research applications.Our BSA is protease and certified TSE free, manufactured in the United States in a closed loop system from USDA-inspected, healthy animals located in the US.

GoldBio Caprylate Stabilized BSA is a highly purified, lyophilized albumin, suitable for Westerns, enzyme systems, protein standards, hybridizations and as a protease-sensitive immunoassays. It is also perfectly suitable as a nutrient in cell culture media, with low interference and backgrounds and is ideal for most standard molecular biology experiments. Our Caprylate Stabilized BSA is protease and certified TSE free, manufactured in the United States in a closed loop system from USDA-inspected, healthy animals located in the US.

GoldBio's Precision Grade, Fatty Acid Free BSA from New Zealand is ideally suited for fatty acid sensitive cell culture systems, such as CHO, Vero and MDCK cells, as well as for the most sensitive diagnostic and research applications.

GoldBio BSA is a highly purified, lyophilized albumin, suitable for Westerns, enzyme systems, protein standards, hybridizations and as a protease-sensitive immunoassays. It is also perfectly suitable as a nutrient in cell culture media, with low interference and backgrounds and is ideal for most standard molecular biology experiments. BSA protein is a single polypeptide chain consisting of ~583 amino acid residues and no carbohydrates and is approximately 66 kDa in size. Fraction V refers to the fifth fraction of the original Cohn purification of plasma proteins using cold ethanol precipitation and is still commonly used as a name for bovine serum albumin regardless of purification method.

GoldBio's Caprylate Stabilized BSA from New Zealand is a highly purified, lyophilized albumin, suitable for Westerns, enzyme systems, protein standards, hybridizations and as a protease-sensitive immunoassays. It is also perfectly suitable as a nutrient in cell culture media, with low interference and backgrounds and is ideal for most standard molecular biology experiments.

Sulfhydryl Blocked Bovine Serum Albumin (sBSA) is a highly purified, lyophilized albumin designed for immunoassays and enzymatic applications that require minimal reactivity. sBSA maintains a high-monomer form with reduced cross-reactivity, ensuring exceptional stability and accuracy. sBSA is ideal for applications like acridinium ester chemiluminescence and immunoassays and is compatible with maleimide conjugation for added experimental flexibility.

Sulfhydryl BSA is particularly useful in thiol-sensitive assays, capable of blocking over 90% of the free thiol groups in BSA. Sulfhydryl BSA is free from EDTA and fatty acid-stabilized, making it suitable for a wide range of assay types. This BSA is sourced from Fraction V of the original Cohn purification, ensuring reliability and consistency. In addition to its blocking capabilities, sBSA is also used in protein standards, cell culture media, and protease-sensitive immunoassays, offering versatility across various biological and biochemical applications.